Answer:
y = - 2x + 2
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here slope m = - 2 , then
y = - 2x + c ← is the partial equation
to find c substitute (- 3, 8 ) into the partial equation
8 = - 2(- 3) + c = 6 + c ( subtract 6 from both sides )
2 = c
y = - 2x + 2 ← equation of line
Practice writing and solving equations to solve number problems.
assessment started: undefined.
item 1
question 1
ansley’s age is 5 years younger than 3 times her cousin’s age. ansley is 31 years old.
let c represent ansley’s cousin’s age. what expression, using c, represents ansley’s age?
enter your response in the box.
Ansley's cousin is 12 years old, and Ansley's age can be found by plugging in 12 for Cousin's age.
How can we know that Ansley's age is 5 years less than 3 times her cousin's age?The problem tells us that Ansley's age is 5 years less than 3 times her cousin's age. We can write this as an equation:
Ansley's age = 3 × Cousin's age - 5
We also know that Ansley is 31 years old. So we can substitute 31 for Ansley's age in the equation:
31 = 3 × Cousin's age - 5
Now we solve for Cousin's age. First, we add 5 to both sides of the equation:
31 + 5 = 3 × Cousin's age
Simplifying:
36 = 3 × Cousin's age
Finally, we divide both sides by 3:
Cousin's age = 12
So Ansley's cousin is 12 years old, and Ansley's age can be found by plugging in 12 for Cousin's age in the expression we found earlier:
Ansley's age = 3 × Cousin's age - 5 = 3 × 12 - 5 = 31
So Ansley is indeed 31 years old.
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Prepare the operating activities section of the statement of cash flows for peach computer using the indirect method. (list cash outflows and any decrease in cash as negative amounts.)
Cash outflows and decreases in cash are reported as negative amounts in the operating activities section of the statement of cash flows for Peach Computer using the indirect method.
How to prepare the operating activities section of the statement of cash flows for Peach Computer using the indirect method?The operating activities section of the statement of cash flows for Peach Computer using the indirect method would include the following cash inflows and outflows:
Cash inflows:
Sales revenue from the sale of computersCash received from customers for computer repairs and servicesInterest received on loans or investmentsCash outflows:
Payments to suppliers for inventory purchasesPayments to employees for salaries and wagesPayments for operating expenses such as rent, utilities, and advertisingPayments of income taxesPayments of interest on loansPayments to creditors for accounts payableAny decrease in cash would be represented as negative amounts in this section.
It's important to note that the specific amounts and details would vary based on Peach Computer's individual financial transactions and operations. The operating activities section provides a summary of the cash inflows and outflows directly related to the company's core business operations during the specified period.
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Find the new coordinates for the image under the given translation. Square RSTU with vertices R(-2, 1), S(3, 4), T(6, -1), and U(1, -4): (x, y) → (x-4, y − 1) - -9-8-7 -6 -5 -4 -3 -2 -1 0 1 2 R' (, ) S' (, ) T'(,0) U'(,) 3 4 LO 5 6 7 8 9
Thus, the new coordinates for the image of translated Vertices of Square RSTU are- R'(-6, 0), S'(-1, 3), T'(2, -2) and U'(-3, -5).
Define about the translations:In mathematics, a translation moves an object throughout the coordinate plane while preserving its dimensions and shape. After a translation, its area and orientation remain unchanged.
The vertical shift, horizontal shift, or perhaps a combination of the two can be referred to as a translation in mathematics.
Given that:
Vertices of Square RSTU.
R(-2, 1), S(3, 4), T(6, -1), and U(1, -4):
translation: (x, y) → (x-4, y − 1)
New vertices:
R(-2-4, 1 − 1) --> R'(-6, 0)
S(3-4, 4 − 1), ---> S'(-1, 3)
T(6-4, -1 − 1), -> T'(2, -2)
U(1-4, -4 − 1) --> U'(-3, -5)
Thus, the new coordinates for the image of translated Vertices of Square RSTU are- R'(-6, 0), S'(-1, 3), T'(2, -2) and U'(-3, -5).
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Verónica jogged 10 3/16 miles in a one week, the next week she jogged 8 7/16 miles. how many more miles did she jog the first week? pls answer
Verónica jogged 7/4 or 1 and 3/4 more miles in the first week than in the second week.
Verónica jogged 10 3/16 miles in one week, next week she jogged 8 7/16 miles. how many miles did she jog the first week?Verónica jogged 10 3/16 miles in the first week and 8 7/16 miles in the second week. To find how many more miles she jogged in the first week, we need to subtract the distance she jogged in the second week from the distance she jogged in the first week:
10 3/16 miles - 8 7/16 miles
We need to first convert both mixed numbers to improper fractions:
10 3/16 = (10 x 16 + 3) / 16 = 163 / 16
8 7/16 = (8 x 16 + 7) / 16 = 135 / 16
Now we can subtract the two fractions:
163 / 16 - 135 / 16 = (163 - 135) / 16 = 28 / 16
We can simplify the fraction by dividing both the numerator and the denominator by their greatest common factor (GCF), which is 4:
28 / 16 = (4 x 7) / (4 x 4) = 7 / 4
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find the missing no 3,4,13,?,8,168
Answer:
I believe it is 38
Step-by-step explanation:
A rectangular patio is 10 feet by 13 feet. what is the length of the diagonal of the patio? (use pythagorean theorem: a² + b ²= c²)
The length of the diagonal is c = √269 feet.
To get the length of the diagonal of a rectangular patio, we can use the Pythagorean theorem, which states that for a right triangle with legs of length a and b, and hypotenuse of length c, a² + b² = c². In this case, the legs of the right triangle are the length and width of the rectangular patio, which are 10 feet and 13 feet, respectively. Let's use a and b to represent these lengths.
a = 10 feet
b = 13 feet
We want to find the length of the diagonal, which is the hypotenuse of the right triangle. Let's use c to represent this length.
a² + b² = c²
10² + 13² = c²
100 + 169 = c²
269 = c²
Now we need to find the square root of 269 to get the length of the diagonal.
c = √269
c ≈ 16.4 feet
So the length of the diagonal of the rectangular patio is approximately 16.4 feet. We can also find the ratio of the length, width, and diagonal of the rectangular patio.
length:width = 10:13
width:length = 13:10
length:diagonal = 10:√269
width:diagonal = 13:√269
diagonal:length = √269:10
diagonal:width = √269:13
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If f(9) = 9, f'(9) = 4, limit x→9√(f(x))-3/√(x)-3 =
A. 1
B. 1/4
C. 1/2
D. -1/2
The answer is A. 1. We can use L'Hopital's rule to evaluate the limit:
limit x→9√(f(x))-3/√(x)-3 = limit x→9 (f(x)-9)/(x-9) / (√(f(x))-3)/(√(x)-3)
Now, we know that f(9) = 9 and f'(9) = 4, so we can use the definition of the derivative to write:
f(x) - f(9) = f'(9)(x-9) + o(x-9)
where o(x-9) represents a term that goes to 0 faster than x-9 as x approaches 9. Plugging this into the numerator, we get:
f(x) - 9 = 4(x-9) + o(x-9)
Plugging this into the denominator, we get:
√(f(x)) - 3 = √(4(x-9) + o(x-9)) = 2√(x-9) + o(1)
√(x) - 3 = √(x-9) + o(1)
Therefore, the limit becomes:
limit x→9 (4(x-9) + o(x-9))/(√(x-9) + o(1)) / (2√(x-9) + o(1))/(√(x-9) + o(1))
Simplifying this expression, we get:
limit x→9 2(4(x-9) + o(x-9))/(√(x-9) + o(1))^2
limit x→9 8 + 2o(1)/(x-9)
As x approaches 9, the o(1) term goes to 0, so the limit becomes:
8 + 2*0/0 = 8
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PLEASE HELPPPP!!!!
The base of a right octagonal prism has eight sides equal in length. One side of the base measures 2. 3 cm, and the area of the base is 25. 76 cm². The surface area of the prism is 223. 56 cm².
Whats the height of the prism?
The height of the right octagonal prism is approximately 10.75 cm.
The given information states that the base of the prism is a regular octagon with each side measuring 2.3 cm, and the area of the base is 25.76 cm². Additionally, the surface area of the prism is 223.56 cm².
First, let's calculate the area of the eight lateral faces. We can do this by subtracting the base's area from the total surface area:
223.56 cm² (total surface area) - 25.76 cm² (base area) = 197.8 cm² (lateral area)
Now, we know that the lateral area is the sum of the areas of all eight rectangular faces. Each rectangle has a base of 2.3 cm (the same as the sides of the octagonal base) and a height equal to the height of the prism (h). Since there are eight faces, the combined area of these rectangles is 8 x 2.3 x h:
8 x 2.3 x h = 197.8 cm²
18.4 x h = 197.8 cm²
To find the height of the prism (h), we can divide both sides of the equation by 18.4:
h = 197.8 cm² / 18.4
h ≈ 10.75 cm
So, the height of the right octagonal prism is approximately 10.75 cm.
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Triangle XYZ has coordinates X(-2,2), Y(-3,-4). And Z(1,-2). The triangle is reflected across the x-axis. What are the coordinates of triangle X'Y'Z'?
The coordinates of triangle X'Y'Z' is X'(-2,-2), Y'(-3,4), Z'(1,2).
What are the coordinates of the triangle?
The triangle's vertices have the coordinates (x1,y1), (x2,y2), and (x3,y3). The line that connects the first two is split in the ratio l:k, and the line that runs from the division point to the opposing angular point is divided in the ratio m:k+l.
Here, we have
Given: Triangle XYZ has coordinates X(-2,2), Y(-3,-4). And Z(1,-2).
The triangle is reflected across the x-axis and we have to find the coordinates of triangle X'Y'Z'.
X(-2,2), Y(-3,-4) and Z(1,-2).
While reflecting any points across the x-axis with coordinates as (x, y) becomes, (x, -y). i.e. sign of y-coordinate changes.
The rule is (x, y) → (x, -y)
After applying the rule, we get
X(-2,2) ⇒ X'(-2,-2)
Y(-3,-4) ⇒ Y'(-3,4)
Z(1,-2) ⇒ Z'(1,2)
Hence, the coordinates of triangle X'Y'Z' is X'(-2,-2), Y'(-3,4), Z'(1,2).
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topic 3 providing lines are parallel
21
21. in the figure, provided line n and line m are parallel the values of x and y are
x = 7
y = 24
How to find x and y21. When line m and line n are parallel then using corresponding angle theorem we have that:
7y - 23 + 8x - 21 = 180
7y - 8x = 180 + 23 - 21
7x - 8x = 182
Also
8x - 21 + 23x - 16 = 180
8x + 23x = 180 + 21 + 16
31x = 217
x = 217 / 31
x = 7
using vertical angle theorem we have:
7y - 23 = 23x - 16
plugging in the value of x
7y - 23 = 23 * 7 - 16
7y - 23 = 145
7y = 145 + 23
7y = 168
y = 24
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How to get the centre of the circle when the circumference is not given
To find the center of a circle when the circumference is not given, you still find it.
1. Determine the coordinates of at least three non-collinear points on the circle. Non-collinear points are points that do not lie on a straight line.
2. Using these points, create two line segments that are chords of the circle. A chord is a line segment connecting two points on the circle.
3. Find the midpoints of each chord. The midpoint formula is given as: Midpoint (M) = ((x1 + x2) / 2, (y1 + y2) / 2).
4. Calculate the slope of each chord using the slope formula: Slope (m) = (y2 - y1) / (x2 - x1).
5. Calculate the slope of the perpendicular bisectors of each chord. Since these lines are perpendicular to the chords, their slopes are the negative reciprocal of the chord slopes: m_perpendicular = -1 / m_chord.
6. Write the equation of each perpendicular bisector using the point-slope formula: y - y_midpoint = m_perpendicular * (x - x_midpoint).
7. Solve the system of equations formed by the two perpendicular bisectors. The solution is the coordinates of the center of the circle.
By following these steps, you can find the center of the circle even when the circumference is not given.
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The triangle above has the following measures.
a=9cm
b=9√3cm
Use the 30-60-90 Thangle Theorem to find the
length of the hypotenuse Include correct units
Show all your work
Answer:
Step-by-step explanation:
The length of the hypotenuse is approximately 4.95 cm.
We have,
Since triangle ABC is a 45-45-90 triangle, we know that the measure of angle B is also 45 degrees.
Therefore, we can use the 45-45-90 Triangle Theorem, which states that in a 45-45-90 triangle,
the length of the hypotenuse is √2 times the length of either leg.
In this case,
We know that leg a = 3.5 cm, so we can find the length of the hypotenuse c using the formula:
c = a√2
Substituting the value of a, we get:
c = 3.5√2 ≈ 4.95 cm
Therefore,
The length of the hypotenuse is approximately 4.95 cm.
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complete question:
The triangle above has the following measures. mzC = 45° a = 3.5 cm Use the 45-45-90 Triangle Theorem to find the length of the hypotenuse. Include correct units. Show all your work.
A survey of 61 randomly selected homeowners finds that they spend a mean of $62 per month on home maintenance. construct a 98% confidence interval for the mean amount of money spent per month on home maintenance by all homeowners. assume that the population standard deviation is $13 per month. round to the nearest cent.
The 98% confidence interval for the mean amount of money spent per month on home maintenance by all homeowners is $58.06 to $65.94.
To construct a confidence interval for the mean amount of money spent per month on home maintenance by all homeowners, we can use the formula:
CI = [tex]\bar{X}[/tex] ± Zα/2 * (σ/√n)
where [tex]\bar{X}[/tex] is the sample mean, Zα/2 is the critical value from the standard normal distribution corresponding to the desired confidence level, σ is the population standard deviation, and n is the sample size.
In this case, we have:
[tex]\bar{X}[/tex] = $62 (the sample mean)
α = 0.02 (since we want a 98% confidence interval, which means α/2 = 0.01)
Zα/2 = 2.33 (from the standard normal distribution table)
σ = $13 (the population standard deviation)
n = 61 (the sample size)
Substituting these values into the formula, we get:
CI = $62 ± 2.33 * ($13/√61)
Simplifying this expression, we get:
CI = $62 ± $3.94
Therefore, the 98% confidence interval for the mean amount of money spent per month on home maintenance by all homeowners is $58.06 to $65.94.
This means that we can be 98% confident that the true population mean falls within this range. In other words, if we were to repeat the survey many times and construct confidence intervals in the same way, about 98% of the intervals would contain the true population mean.
It's important to note that this assumes that the sample is representative of the population, and that the population standard deviation is known. If these assumptions are not met, then the confidence interval may not be accurate.
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What is the quotient of the expression (5.04×1012)÷(6.3×109) written in scientific notation?
The quotient of the expression (5.04×10^12)÷(6.3×10^9) written in scientific notation is 8 × 10^2.
To divide two numbers written in scientific notation, we can divide their coefficients (the decimal parts) and subtract their exponents. So, we have:
(5.04 × 10^12) ÷ (6.3 × 10^9) = (5.04 ÷ 6.3) × 10^(12-9) = 0.8 × 10^3
Since 0.8 is less than 1, we can write this number in scientific notation by moving the decimal point one place to the right and subtracting 1 from the exponent:
0.8 × 10^3 = 8 × 10^2
Therefore, the quotient of the expression (5.04×10^12)÷(6.3×10^9) written in scientific notation is 8 × 10^2.
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You babysat your neighbor's children and they paid you $45 for 6 hours. Fill in the t-table for hours (x) and money (y)
you got $45 for 6hours.
one hour=$7.5
two hours=$15
three hours=$7.5*3
calculation=$45/6
a specific combination lock has 3 numbers chosen out of 40 possible numbers (0-39). assuming that all lock combinations are possible (including repeated numbers) find the number of possible lock combinations.
The total number of possible lock combination using the 40 possible numbers for making lock of 3 numbers is equal to 64,000.
Possible number used for lock combination are 40.
Range is 0 - 39.
Total number chosen for lock combination is equal to 3.
Since there are 40 possible numbers to choose from for each of the three positions on the combination lock.
The total number of possible combinations is equal to ,
40 x 40 x 40
= 40^3
= 64,000
Therefore, there are 64,000 possible lock combinations when choosing 3 numbers out of 40 possible numbers, assuming repeated numbers are allowed.
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if you roll two fair six-sided dice, what is the probability that the sum is 4 44 or higher?
The probability of rolling two fair six-sided dice and getting a sum of 4 or higher is 11/12
To calculate the probability of rolling two fair six-sided dice and getting a sum of 4 or higher, we first need to calculate the total number of possible outcomes.
The number of possible outcomes when rolling two dice is 6 × 6 = 36, since each die has 6 possible outcomes.
Now, let's find the number of outcomes that result in a sum of 4 or higher. We can do this by listing all the possible outcomes:
Sum of 4: (1, 3), (2, 2), (3, 1) = 3 outcomes
Sum of 5: (1, 4), (2, 3), (3, 2), (4, 1) = 4 outcomes
Sum of 6: (1, 5), (2, 4), (3, 3), (4, 2), (5, 1) = 5 outcomes
Sum of 7: (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1) = 6 outcomes
Sum of 8: (2, 6), (3, 5), (4, 4), (5, 3), (6, 2) = 5 outcomes
Sum of 9: (3, 6), (4, 5), (5, 4), (6, 3) = 4 outcomes
Sum of 10: (4, 6), (5, 5), (6, 4) = 3 outcomes
Sum of 11: (5, 6), (6, 5) = 2 outcomes
Sum of 12: (6, 6) = 1 outcome
Therefore, the number of outcomes that result in a sum of 4 or higher is 3 + 4 + 5 + 6 + 5 + 4 + 3 + 2 + 1 = 33.
Therefore, the probability of rolling two fair six-sided dice and getting a sum of 4 or higher is 33/36 = 11/12.
To find the probability of getting a sum of 44 or higher, we need to subtract the probability of getting a sum of 43 or lower from 1:
Sum of 2: (1, 1) = 1 outcome
Sum of 3: (1, 2), (2, 1) = 2 outcomes
Sum of 4: (1, 3), (2, 2), (3, 1) = 3 outcomes
Sum of 5: (1, 4), (2, 3), (3, 2), (4, 1) = 4 outcomes
Sum of 6: (1, 5), (2, 4), (3, 3), (4, 2), (5, 1) = 5 outcomes
Sum of 7: (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1) = 6 outcomes
Sum of 8: (2, 6), (3, 5), (4, 4), (5, 3), (6, 2) = 5 outcomes
Sum of 9: (3, 6), (4, 5), (5, 4), (6, 3) = 4 outcomes
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answer questions 2-20 please 1 and 5-7 are already answered no need to correct them does not need to be correct but please have relistic answers : )
The Pythagorean Theorem with regards to the relationships between the lengths of the sides of a right triangle indicates that we get;
2. x = 51
3. x = 50
4. x = 82
8. x = 2·√(77)
9. x = √(39)
10. x = 2·√(19)
11. x = 2·√(154)
12. x = 3·√3
13. x = 6·√(13)
16. A right triangle
17. A right triangle
18. The triangle is not a right triangle
19. An obtuse triangle
20. An obtuse triangle
What is the Pythagorean Theorem?The Pythagorean Theorem states that the square of the length of the hypotenuse side of a right triangle is equivalent to the sum of the squares of the lengths of the other two sides.
2. x² = 45² + 24² = 2601
x = √(2601) = 51
3. x² = 30² + 40² = 2500
x = √(2500) = 50
x = 50
4. x² = 80² + 18² = 6724
x = √(6724) = 82
x = 82
8. According to the Pythagorean Theorem, in the right triangle we get;
x² = 18² - 4² = 308
x = 2·√(77)
9. x² = 8² - 5² = 39
x = √(39)
10. x² = 20² - 18²
x² = 76
x = √(76) = 2·√(19)
x = 2·√(19)
11. x² = 25² - 3² = 616
x = √(616) = 2·√(154)
x = 2·√(154)
12. x² = 6² - 3² = 27
x = √(27)
x = 3·√3
13. x² = 22² - 4² = 468
x = √(468) = 6·√(13)
x = 6·√(13)
16. A triangle is a right triangle if the square of the side that is the longest is equivalent to the square of the other two sides, therefore;
17² = 289
15² + 8² = 289
Therefore, the triangle is a right triangle
17. 45² = 2025
27² + 36² = 2025
Therefore, the triangle is a right triangle
18. 11² = 121
9² + 4² = 97
Therefore, the triangle is not a right triangle
19. 6² = 36
4² + 3² = 25
The square of the side that is longest is larger than the sum of the squares of the other two sides, which indicates that the angle facing the longest side is lar1ger than 90°, and the triangle is an obtuse triangle.
20. 16² = 256
9² + 11² = 202
16² > 9² + 11²; Therefore, the triangle is an obtuse triangle
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On a baseball diamond, home plate and second base lie on the perpendicular bisector of the line segment that joins first and third base. First base is 90 feet from home plate. How far is it from third base to home plate? Sketch a baseball diamond on a separate sheet of paper, labeling home plate as point A
, first base as B
, second base as C
, and third base as D. Label the intersection of AC⎯⎯⎯⎯⎯
and BD⎯⎯⎯⎯⎯
as E. Using the Perpendicular Bisector Theorem, determine how far it is from third base to home plate. Describe your conclusion in the context of the situation
Using the Perpendicular Bisector Theorem, the distance from third base to home plate is 90 feet. This means that all the bases are equidistant from home plate, which is a fundamental property of a baseball diamond.
To find the distance from third base to home plate, we need to use the Perpendicular Bisector Theorem, which states that if a point lies on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment.
First, we draw a baseball diamond with points A, B, C, and D labeled as described in the problem.
Next, we draw the line segment that joins first base (B) and third base (D), and we construct the perpendicular bisector of this segment by drawing a line through the midpoint of BD and perpendicular to BD. Let's label the point where the perpendicular bisector intersects the line that connects home plate (A) and second base (C) as E.
Since E lies on the perpendicular bisector of BD, it is equidistant from B and D. We know that first base (B) is 90 feet from home plate (A), so the distance from home plate to E must also be 90 feet. Therefore, the distance from third base (D) to home plate (A) is also 90 feet.
In conclusion, using the Perpendicular Bisector Theorem, we determined that the distance from third base to home plate is 90 feet.
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PLEASE HELP!!!!!!! Two lines, E and F, are represented by the equations given below. Line E: 5x + 5y = 40 Line F: x + y = 8 Which statement is true about the solution to the set of equations? (4 points) Question 2 options: 1) It is (40, 8). 2) It is (8, 40). 3) There is no solution. 4) There are infinitely many solutions.
Answer: (4)
Step-by-step explanation:
Two lines E and F are same.
5x + 5y = 40
x + y = 8
Deviding both hands of E by 5,
we get F's equation.
So every single point on the line x+y=8
represents the solution of the given system.
Algebra please help
Your school newspaper has an editor-in-chief and an assistant editor-in-chief. The newspaper staff
has 5 students. How many different ways can students be chosen for these positions?
There are 20 different ways the students can be chosen for the positions of editor-in-chief and assistant editor-in-chief.
There are 5 students in the newspaper staff, and two positions to fill i.e. editor-in-chief and assistant editor-in-chief. We need to find the number of different ways the students can be chosen for these positions.
To solve this problem, we can use the formula for permutation
We know the formula for Permutation is
[tex]P(n,r)=\frac{n!}{(n-r)!}[/tex]
Here, n=5 and r=2
So, P(5,2) = 5!/(5-2)!
= 5!/3!
= 120/6
= 20
Therefore, there are 20 different ways the students can be chosen for the positions of editor-in-chief and assistant editor-in-chief.
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PLEASE HELP WILL MARK BRANLIEST!!!
The customer can choose from 21 different gifts if they want to order only 1 item, 138 different gifts if they want to order 2 items of different kinds, and 280 different gifts if they want to order 3 items of different kinds.
To find the different number of gifts, we use the fundamental counting principle, which states that the total number of ways to choose a sequence of items is equal to the product of the number of choices available for each item.
⇒ If a customer wants to order only 1 item, they can choose from:
10 varieties of "greeting-cards"
4 types of "fruit-baskets"
7 flower arrangements
So, total number of different gifts that can be created is: 10 + 4 + 7 = 21.
⇒ If a customer wants to order 2 items of different kinds, they can choose from:
10 varieties of greeting-cards and 4 types of fruit baskets :
(10 × 4 = 40 choices)
10 varieties of greeting cards and 7 flower arrangements :
(10 × 7 = 70 choices)
4 types of fruit-baskets and 7 flower arrangements :
(4 × 7 = 28 choices)
So, number of different gifts that can be created is: 40 + 70 + 28 = 138.
⇒ If a customer wants to order 3 items of different kinds, they can choose from:
10 varieties of greeting cards, 4 types of fruit baskets, and 7 flower arrangements (10 × 4 × 7 = 280 choices),
So, the total number of different gifts that can be created is : 280.
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Alan buys a bag of cookies that contains 5 chocolate chip cookies, 5 peanut butter cookies, 5 sugar cookies and 9 oatmeal cookies. What is the probability that Alan randomly selects a chocolate chip cookie from the bag, eats it, then randomly selects a peanut butter cookie? Express you answer as a reduced fraction
In ΔPQR, the measure of ∠R=90°, the measure of ∠P=26°, and PQ = 8. 5 feet. Find the length of QR to the nearest tenth of a foot
In ΔPQR, the length of QR is approximately 4.1 feet to the nearest tenth of a foot.
In ΔPQR, given that ∠R=90°, ∠P=26°, and PQ=8.5 feet, you want to find the length of QR to the nearest tenth of a foot.
Step 1: Since ∠R is a right angle (90°), we can use trigonometric ratios to find QR. First, let's find ∠Q. We know that the sum of angles in a triangle is 180°, so ∠Q = 180° - (∠P + ∠R) = 180° - (26° + 90°) = 64°.
Step 2: Now that we have all the angles, we can use the sine formula to find QR. We'll use the sine of ∠P (26°) and the given side PQ (8.5 feet) as our reference. The sine formula is:
QR = (PQ * sin(∠P)) / sin(∠Q)
Step 3: Plug in the known values:
QR = (8.5 * sin(26°)) / sin(64°)
Step 4: Calculate the sine values and the division:
QR = (8.5 * 0.4384) / 0.8988 ≈ 4.1326
Step 5: Round the answer to the nearest tenth of a foot:
QR ≈ 4.1 feet
In ΔPQR, the length of QR is approximately 4.1 feet to the nearest tenth of a foot.
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FILL IN THE BLANK. Find the indefinite integral ∫ sin²(x)- cos²(x)/cos(x) dx =_______ Note: Use an upper-case "C" for the constant of integration.
The final result is ∫ sin²(x)- cos²(x)/cos(x) dx = -3cos²(x)/2 + 2ln|cos(x)| + C.
To solve the indefinite integral ∫ sin²(x)- cos²(x)/cos(x) dx, we need to use trigonometric identities to simplify the integrand.
First, we use the identity sin²(x) + cos²(x) = 1 to write:
sin²(x) - cos²(x) = sin²(x) + cos²(x) - 2cos²(x) = 2sin²(x) - cos²(x)
Next, we use the identity sin²(x) = 1 - cos²(x) to write:
2sin²(x) - cos²(x) = 2(1-cos²(x)) - cos²(x) = 2 - 3cos²(x)
Substituting this into the original integral, we get:
∫ sin²(x)- cos²(x)/cos(x) dx = ∫ (2 - 3cos²(x))/cos(x) dx
Now, we use the substitution u = cos(x) and du/dx = -sin(x) dx to transform the integral into a simpler form:
∫ (2 - 3cos²(x))/cos(x) dx = ∫ (2 - 3u²)/u (-du/sin(x))
= -∫ (3u² - 2)/u du
= -3∫ u du + 2∫ du/u
= -3u²/2 + 2ln|u| + C
= -3cos²(x)/2 + 2ln|cos(x)| + C
where C is the constant of integration.
Substituting back u = cos(x), we obtain the final result
∫ sin²(x)- cos²(x)/cos(x) dx = -3cos²(x)/2 + 2ln|cos(x)| + C
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Jenny is planning an extended trip to russia.the table below shows a list of cities which she would like to visit during her stay, along with the amount of money she anticipates needing to spend on travel, lodging, and similar expenses in each city. all costs are given in russian rubles (rub). city cost (rub) izhevsk 4,721 novosibirsk 4,870 nizhny novgorod 6,920 moscow 5,485 chelyabinsk 5,217 saint petersburg 5,960 tolyatti 5,598 yaroslavl 4,901 even though jenny wants to go to each of these cities, her budget is only rub 33,000, so she recognizes that she must change her itinerary and choose not to visit some cities. which of the following pairs of cities will not put jenny back under budget if she drops them? a. moscow and chelyabinsk b. izhevsk and nizhny novgorod c. novosibirsk and saint petersburg d. yaroslavl and tolyatti
The pairs of cities that will not put Jenny back under budget if she drops them are:
a. Moscow and Chelyabinsk
b. Izhevsk and Nizhny Novgorod
To determine which pair of cities Jenny can drop without going over budget, we need to find the total cost of each pair and see if it exceeds her budget of rub 33,000.
a. Moscow and Chelyabinsk:
Total cost = 5,485 + 5,217 = 10,702 rubles
This pair of cities is over budget, so Jenny cannot drop any other cities if she wants to visit both Moscow and Chelyabinsk.
b. Izhevsk and Nizhny Novgorod:
Total cost = 4,721 + 6,920 = 11,641 rubles
This pair of cities is over budget, so Jenny cannot drop any other cities if she wants to visit both Izhevsk and Nizhny Novgorod.
c. Novosibirsk and Saint Petersburg:
Total cost = 4,870 + 5,960 = 10,830 rubles
This pair of cities is under budget, so Jenny can drop this pair without going over budget.
d. Yaroslavl and Tolyatti:
Total cost = 4,901 + 5,598 = 10,499 rubles
This pair of cities is under budget, so Jenny can drop this pair without going over budget.
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ALGEBRA
Farha Gadhia has applied for a $100,000 mortgage loan
at an annual interest rate of 6%. The loan is for a period of 30 years
and will be paid in equal monthly payments that include interest.
Use the monthly payment formula to find the payment.
A man spent 500 dollars on a shopping trip to Erewhon. If the milk costed 132 dollars and the chicken costed 220, how much did the fish cost?
Answer:148
Step-by-step explanation:
Assuming he only bought milk, fish and chicken.
220+132=352
500-352=148
Can I have help with this question, Please?
"Write an equation for the ellipse."
Center: (1, -3)
The equation of the ellipse with center (1, -3), and a semi major axis of 4, and a semi minor axis of 3 is; (x - 1)²/4² + (y + 3)²/3²
What is the standard form of the equation of an ellipse?The standard form equation of an ellipse can be presented as follows;
(x - h)²/a² + (y - k)²/b² = 1
Where;
(h, k) = The coordinates of the center of the ellipse.
The length of the semi major axis = a
Length of the semi minor axis = b
The center of the specified ellipse is; (h, k) = (1, -3)
The semi major axis = 4
The length of the semi minor axis = 3
The equation of the ellipse is therefore;
(x - 1)²/4² + (y - (-3))²/3² = 1
(x - 1)²/4² + (y + 3)²/3² = 1
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Garden plots in the Portland Community Garden are rectangles
limited to 45 square meters. Christopher and his friends want a plot
that has a width of 7.5 meters. What length will give a plot that has
the maximum area allowed?
The length should be less than or equal to 6 meters in order to have a plot with the maximum area allowed (45 square meters) when the width is 7.5 meters.
To find the length that will give a plot with the maximum area allowed, we can use the formula for the area of a rectangle:
Area = Length × Width
The width is given as 7.5 meters, and the area should not exceed 45 square meters.
Let's denote the length as L.
We want to maximize the area, so we need to find the value of L that satisfies the condition Area ≤ 45 and gives the largest possible area.
Substituting the given values into the area formula, we have:
Area = L × 7.5
Since the area should not exceed 45 square meters, we can write the inequality:
L × 7.5 ≤ 45
To find the maximum value of L, we can divide both sides of the inequality by 7.5:
L ≤ 45 / 7.5
Simplifying the right side:
L ≤ 6
Therefore, the length should be less than or equal to 6 meters in order to have a plot with the maximum area allowed (45 square meters) when the width is 7.5 meters.
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