The resulting matrix from an elementary row operation to get a 1, in row 1 column 1 is:
R₁ = [1 4 -8] and R₂ = [2 4 7]
What is the row of a matrixA rectangular array of numbers or mathematical objects which are arranged in rows and columns is called a matrix. Each row of a matrix is a horizontal sequence of numbers or objects that are separated by commas and enclosed within square brackets, and it represents a vector in the row space of the matrix.
The row operation R₁ - 4 — R₁ will be carried out as follows:
5 - 4 = 1 {row 1 column 1}
9 - 4 = 5 {row column 2}
-4 - 4 = -8 {row column 3}
Therefore, the resulting matrix from an elementary row operation to get a 1, in row 1 column 1 will have:
R₁ = [1 4 -8] and R₂ = [2 4 7]
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find the inverse of f(x)=2^x+2
us the function odd, even, or neither?
Which of these expressions is equivalent to log (128^)?
OA. log (8) - log (12)
OB. 8 log (12)
C. log (8) log (12)
D. log (8) + log (12)
.
Jackie, a marine biologist, is tracking migratory patterns of a group of whales. The endpoints
of the whales' current migration route are 9 inches apart on Jackie's chart. If the scale of the
map is 1 inch: 0.6 miles, then what is the actual distance between the whales' starting and
ending points?
Answer:
1 inch = 0.6 miles
= 9 inches = 0.6 miles*9
= 9 inches = 5.4 miles
Hence, the answer is 5.4 miles.
Please mark me as brainliest...
7. The towns of Washington, Franklin, and Springfield are
connected by straight roads. The towns wish to build an
airport to be shared by all of them.
a. Where should they build the airport if they want it to be the same distance from
each town's center? Describe how to find the precise location.
b. Where should they build the airport if they want it to be the same distance from
each of the roads connecting the towns? Describe how to find the precise
location.
a. To build the airport at the same distance from the center of each town, they should locate the intersection of the perpendicular bisectors of the segments connecting each pair of towns.
b. To build the airport equidistant from each road, locate the intersection of the angle bisectors at each town
Where would the precise location be?The precise location of the airport will be the point where these perpendicular bisectors intersect. This point will be equidistant from the center of each town.
b. To build the airport equidistant from each road, locate the intersection of the angle bisectors at each town. This point is the precise airport location. Equidistant from all connecting roads.
They could find the intersection of the medians of the triangle formed by the three towns. The airport is located at the centroid of a triangle, equidistant from 3 towns at the intersection of medians.
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Cami cut 17 1\2
inches off a rope that was 50 inches long. How is the length of the remaining rope in inches written in decimal form?
After Cami cut 17¹/₂ inches of a rope that was 50 inches long, the length of the remaining rope in inches, written in decimal form, is 32.5 inches.
How is the remaining length of the rope determined?To determine the remaining length of the rope, we apply subtraction operation.
However, since the cut rope was expressed in fractions, we can convert it to decimals before the subtraction.
The total length of the rope = 50 inches
The cut portion of the rope = 17¹/₂ inches
The remaining portion = 32¹/₂ inches or 32.5 inches (50 - 17¹/₂)
Thus, the remaining portion of the rope after Cami cut 17¹/₂ inches is 32.5 inches.
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Screenshot below i have no idea how to solve this
Answer:
x^1/4 + 8x^1/4 + 12
Step-by-step explanation:
Using the FOIL method, we get x^1/4 + 8x^1/4 + 12
5. Kamal said that he can measure
area using squares that are 2 units
long and 1 unit wide. What mistake
did Kamal make?
Answer:
A square's length & width are equal
Step-by-step explanation:
Kamal's shape is not a square, because a square is equilateral (equal length in all sides), but his square is 2:1,
Use the following formula to find the correct answers: FV = PV. (1+i)"
You just opened a savings account and deposited $300 at 3% that you plan on withdrawing in 15 years. How much money will you have by then?
O$677.23
O $746.93
$467.39
O $725.30
The savings amount balance in the account is $ 467.39
Given data ,
You just opened a savings account and deposited $300 at 3% that you plan on withdrawing in 15 years.
Using the formula FV = PV * (1 + i)^n, where FV is the future value, PV is the present value, i is the interest rate, and n is the number of periods, we can calculate the future value of the savings account after 15 years.
PV = $300 (the initial deposit)
i = 0.03 (the interest rate per period)
n = 15 years (the number of periods)
FV = $300 (1 + 0.03)^15
FV = $300 ( 1.5579 )
FV = $467.39
Hence , after 15 years, the savings account will have a balance of $ 467.39
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Solve for x. Round to the nearest tenth, if necessary.
x=15.4 units
Step-by-step explanation:First, some definitions before working the problem:
The three standard trigonometric functions, cosine, tangent, and sine, are defined as follows for right triangles:
[tex]sin(\theta)=\dfrac{opposite}{hypotenuse}[/tex]
[tex]cos(\theta)=\dfrac{adjacent}{hypotenuse}[/tex]
[tex]tan(\theta)=\dfrac{opposite}{adjacent}[/tex]
One memorization tactic is "Soh Cah Toa" where the first capital letter represents one of those three trigonometric functions, and the "o" "a" and "h" represent the "opposite" "adjacent" and "hypotenuse" respectively.
The triangle must be a right triangle, or there wouldn't be a "hypotenuse", because the hypotenuse is always across from the right angle.
Working the problem
For the given triangle, the right angle is at the bottom, so the side on top is the hypotenuse. We know the angle in the upper right corner, so the side across from it with length 4.5, is the opposite side.
For this triangle, the "opposite" leg is known. Additionally, the "hypotenuse" is unknown and is our "goal to find" side.
Therefore, the two sides of the triangle that are known or are a "goal to find" are the "opposite" & "hypotenuse".
Out of "Soh Cah Toa," the part that uses "o" & "h" is "Soh". So, the desired function to use for this triangle is the Sine function.
[tex]sin(\theta)=\dfrac{opposite}{hypotenuse}[/tex]
[tex]sin(17^o)=\dfrac{4.5}{x}[/tex]
Multiply both sides by x, and divide both sides by sin(17°)...
[tex]x=\dfrac{4.5}{sin(17^o)}[/tex]
Make sure your calculator is set to degree mode, and calculate:
[tex]x=\dfrac{4.5}{0.2923717047227...}[/tex]
[tex]x=15.391366289249...[/tex] units
Rounded to the nearest tenth...
[tex]x=15.4[/tex] units
Models that represent z+9=14 ASAP
To represent z+9=14, we can start by subtracting 9 from both sides of the equation:
z + 9 - 9 = 14 - 9
Simplifying the left side of the equation gives:
z = 5
Therefore, the solution to the equation z+9=14 is z=5.
can someone solve -4 + 2 + -2 + -3x (with tiles!!!!!)
The simplified expression of given term is: -4 + 2 + -2 + -3x = -4 - 3x
What do you mean by Simplification ?Simplification refers to the process of reducing an expression to its simplest form by combining like terms, removing parentheses, and performing any necessary operations such as addition, subtraction, multiplication, and division. The goal of simplification is to make an expression easier to read and work with, and to reveal any patterns or relationships that may not have been obvious in the original expression. Simplification is an important part of solving equations, evaluating expressions, and performing mathematical operations in general.
We can simplify the expression by combining like terms.
Starting with -4, we add 2 to get:
-4 + 2 = -2
Next, we subtract 2 from -2:
-2 - 2 = -4
Finally, we subtract 3x from -4:
-4 - 3x
So the simplified expression is:
-4 + 2 + -2 + -3x = -4 - 3x
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In the xy-plane, what is the y-intercept of the graph of the equation y=6(x-1/2)(x+3)?
Answer:
The y-intercept of the graph of the equation is -9. This means that the graph crosses the y-axis at the point (0, -9).
Step-by-step explanation:
To solve this question, we need to plug in x = 0 into the given equation and simplify. We get:
y = 6(0 - 1/2)(0 + 3) y = 6(-1/2)(3) y = -9
Therefore, the y-intercept of the graph of the equation is -9. This means that the graph crosses the y-axis at the point (0, -9).
Please solve
1.) 4(v + 1) = 16
Answer:
it's an easy one
Step-by-step explanation:
1. combine those -->4v+4=16
2. subtract the like terms--> 4v=16-4--> 4v=12
3. divide--> v=12/4-->3
4. Answer--> v=3
help pls im failing 100 POINTS IF U HELP
Answer: 44%, 26%, less likely
Step-by-step explanation:
just do the math!!
3x^6 • 5x^-2 simplified
Answer:
First, you distribute the 3 into the brackets,
3(x - 2) + 5x
=3(x) + 3(-2) + 5x
=3x - 6 + 5x
Adding the like terms, 3x and 5x, gives you
=8x - 6
Step-by-step explanation:
A bank offers an investment account with an annual interest rate of 1.51% compounded quarterly. Charlie invests 4200 into the account for 5 years. Answer the questions below. Do not round any intermediate computations, and round your final answers to the nearest cent. If necessary, refer to the list of financial formulas.
After 5 years, there will be $4,528.73 in Charlie's account if no withdrawals are made.
How much money is in Charlie's account after 5 years?Compound interest means addition of interest to the principal sum of a loan or deposit. To get the amount, we will use the formula [tex]A=P(1+r/n)^{nt}[/tex] to get sum of money in the account.
Data:
P = 4,200, r = 1.51%, m = 4, t = 5
Plugging the values, we get:
[tex]A = 4200(1+0.0151/4)^{4*5}\\A = 4200* {1.003775}^{20}\\A = 4200*(1.07826994224)\\A = $4528.73375741\\A = $4528.73.[/tex]
Complete question "A bank offers an investment account with an annual interest rate of 1.51% compounded quarterly. Charlie invests 4200 into the account for 5 years. Answer the questions below. Assuming no withdrawals are made, how much money is in Greg's account after 5 years?"
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What is the circumference of the circle with a radius of 2.5 meters? Approximate using π = 3.14. 61.62 meters 19.63 meters 15.70 meters 7.85 meters
the circumference of the circle with a radius of [tex]2.5[/tex] meters, approximated using [tex]\pi = 3.14[/tex], is [tex]15.7[/tex] meters. Thus, option C is correct.
What is circumference?The circumference of a closed curved object, such a circle or an ellipse, is the length around its perimeter.
The circumference of a circle is the distance around its perimeter. [tex]C = 2r[/tex] , where r is the radius (the distance from the centre of the circle to any point on its border), and pi is a mathematical constant roughly equal to [tex]3.14159[/tex], is the formula for a circle's circumference.
The formula for the circumference of a circle is [tex]C = 2\pi r[/tex] , where r is the radius of the circle.
Substituting the given value of the radius, we get:
[tex]C = 2 \times 3.14 \times 2.5 = 15.7[/tex] meters (approx.)
Therefore, the circumference of the circle with a radius of [tex]2.5[/tex] meters, approximated using π = 3.14, is 15.7 meters.
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Can anyone please help me answer this question?
Find the limit of p(x)= (x^4 - x^3 - 1)/ x^2 (x + 1) as x approaches -3
Answer:
Step-by-step explanation:To find the limit of p(x) as x approaches -3, we can first simplify the expression by factoring the numerator:
p(x) = (x^4 - x^3 - 1) / x^2(x + 1)
= [(x - 1)(x^3 + x^2 - x - 1)] / [x^2(x + 1)]
Now, when x approaches -3, the denominator of the fraction becomes zero, which means we have an indeterminate form of the type 0/0. To evaluate the limit, we can use L'Hopital's rule, which states that if we have an indeterminate form of the type 0/0 or infinity/infinity, we can take the derivative of the numerator and denominator separately and then evaluate the limit again.
Taking the derivative of the numerator and denominator, we get:
p'(x) = [(3x^2 - 2x - 1)(x^2 + 2x) - 2(x - 1)(2x + 1)] / [x^3(x + 1)^2]
Now, plugging in x = -3 into the derivative, we get:
p'(-3) = [(3(-3)^2 - 2(-3) - 1)((-3)^2 + 2(-3)) - 2((-3) - 1)(2(-3) + 1)] / [(-3)^3((-3) + 1)^2]
= [28 - 44] / [(-3)^3(-2)^2]
= -16 / 108
= -4 / 27
Since the derivative is defined and nonzero at x = -3, we can conclude that the original limit exists and is equal to the limit of the derivative, which is:
lim x->-3 p(x) = lim x->-3 [(x - 1)(x^3 + x^2 - x - 1)] / [x^2(x + 1)]
= p'(-3)
= -4 / 27
Therefore, the limit of p(x) as x approaches -3 is equal to -4/27.
Answer:
[tex]\lim_{x \to -3}p(x) =-\dfrac{107}{18}[/tex]
Step-by-step explanation:
Given the function [tex]p(x)=\dfrac{x^4-x^3-1}{x^2(x+1)}[/tex]
Let's give the expressions in the numerator and denominator their own function names so they are easy to refer to:
n, for numerator: [tex]n(x)=x^4-x^3-1[/tex]
d, for denominator: [tex]d(x)=x^2(x+1)[/tex]
So [tex]p(x)=\dfrac{n(x)}{d(x)}[/tex]
Now, we want the limit of p(x) as x goes to -3.
[tex]\lim_{x \to -3}p(x) =\lim_{x \to -3}\dfrac{n(x)}{d(x)}[/tex]
For limits of quotients, it is important to analyze the numerator and the denominator.
Take a moment to observe that inputting -3 into the denominator is defined and does not equal zero: [tex]d(-3)=(-3)^2((-3)+1)=-18\ne0[/tex]
Also, observe that inputting -3 into the numerator is defined: [tex]n(-3)=(-3)^4-(-3)^3-1=81+27-1=107[/tex]
Importantly, both functions n & d are polynomials, which are functions that are continuous over [tex]\mathbb{R}[/tex].
Since both functions n & d are continuous, both n & d are defined at [tex]x=-3[/tex], and [tex]d(-3)\ne0[/tex], then the limit of the quotient is the quotient of the limits:
[tex]\lim_{x \to -3}\dfrac{n(x)}{d(x)}=\dfrac{ \lim_{x \to -3}n(x)}{ \lim_{x \to -3}d(x)}[/tex]
From here, again, since n & d are continuous over [tex]\mathbb{R}[/tex] and defined at the limit, [tex]\lim_{x \to -3}n(x)}=n(-3)[/tex] and [tex]\lim_{x \to -3}d(x)}=d(-3)[/tex].
Therefore,
[tex]\lim_{x \to -3}p(x) =\lim_{x \to -3}\dfrac{n(x)}{d(x)}=\dfrac{ \lim_{x \to -3}n(x)}{ \lim_{x \to -3}d(x)}=\dfrac{n(-3)}{d(-3)}=\dfrac{107}{-18}=-\dfrac{107}{18}[/tex]
Need the answer ASAP
A function whose graph is the graph of y = √x, but is shifted to the left 9 units is [tex]y=\sqrt{x+9}[/tex].
What is a translation?In Mathematics and Geometry, the translation of a geometric figure or graph to the left means subtracting a digit from the value on the x-coordinate of the pre-image;
g(x) = f(x + N)
Conversely, the translation a geometric figure upward means adding a digit to the value on the positive y-coordinate (y-axis) of the pre-image; g(x) = f(x) + N.
Based on the information provided, the transformed function should be written as follows:
y = √x
g(x) = (√x + 9)
[tex]y=\sqrt{x+9}[/tex]
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answer pls my state test is cominggggg
Answer:
- 9/16
Step-by-step explanation:
When multiplying fractions, you can multiply them straight across.
We can focus simply on the fractions first and then add the negative back in later since you always get a negative number when you multiply a negative and positive number:
- (3 /4) * (3 / 4)
- (3 * 3) / (4 * 4)
- (9/16)
-9/16
Find the trig ratio, reduce and enter your answer in the lowest terms. Please help!
The trigonometric ratio cosA = [tex]\frac{3}{5}[/tex] which is in the lowest form.
What does the trigonometric ratio mean? a trigonometric ratioTrigonometric ratios are the ratios of the sides of a right triangle. The sine, cosine, and tangent are three popular trigonometric ratios. (tan).
The given triangle is a right angle,
To find the cos angle we need to take the ratio of the length of the side which is next to the angle, it is also called an adjacent side to the length of the longest side of the triangle called the hypotenuse.
[tex]cosA = \frac{Length of the side next to the angle}{length of the longest side of the triangle} \\cosA = \frac{Adjacent side}{Hypotenuse} \\cosA = \frac{6}{10}\\ cosA = \frac{3}{5}[/tex]
Therefore [tex]cosA= \frac{3}{5}[/tex]
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Help me with this question please
Answer:
[tex]c. 1/5[/tex]
Step-by-step explanation:
You have the points (-5, 0) and (0, 1).
To find the slope, b, of the original line, you can use the formula [tex](y_{1}-y_2) /(x_1-x_2)[/tex].
[tex]b = (0-1)/(-5-0) = -1/-5 = 1/5.[/tex]
The slope of a line parallel to the original line would have the same slope as the original line, therefore [tex]1/5.[/tex]
A 360-ounce bag of rice has a serving size of 7 ounces on its label. How many full servings does the bag contain?
A list 7 members at the gym 10, 64, 52, 46,54,67,54. find the median
The calculated value of the median of the A-list 7 members at the gym is 54
Finding the median of the A-list 7 members at the gymFrom the question, we have the following parameters that can be used in our computation:
10, 64, 52, 46,54,67,54.
When the numbers are sorted in ascending order, we have
Sorted list = 10, 46, 52, 54, 54, 64, 67
The median is the middle number of the sorted list
So, we have
Middle number = 54
Thsis means that
Memdian = 54
Hence. the median of the A-list 7 members at the gym is 54
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Calculate the net profit margin for boots sold for $80 that have a cost of $30 cost of goods sold and 20% operating expenses
The net profit margin for the boots is 42.5%.
How to calculate the net profit margin?Net profit margin is the measure of how much profit is generated as a percentage of revenue. It is the ratio of net profits to revenues.
Revenue from selling the boots is $80.
Total expenses = cost + operating expenses
The cost is $30, and the operating expenses is 20% of the revenue. That is:
2/100 * $80 = $16.
Total expenses = $30 + $16 = $46
net profit = $80 - $46 = $34
Net profit margin = (Net profit / Revenue) * 100
= (34 / 80) * 100
= 42.5%
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question in the picturre please look at the picture
The quadratic function in standard form is f(x) = x² - 4x - 12.
What are the coefficients of the quadratic function?The coefficients of the quadratic function in standard form is calculated as follows;
The quadratic function is in the form of;
f(x) = ax² + bx + c
when x = -4, f(x) = -12
16a - 4b + c = -12
when x = -3, f(x) = -15
9a - 3b + c = -15
when x = -2, f(x) = -16
4a - 2b + c = -16
when x = -1, f(x) = -15
1a - 1b + c = -15
when x = 0, f(x) = -12
0a + 0b + c = -12
c = -12
Simplifying the equations, the value of a and b is calculated as;
16a - 4b + c = -12
9a - 3b + c = -15
4a - 2b + c = -16
a - b + c = -15
16a - 4b = 0
9a - 3b = -3
4a - 2b = -4
a - b = -3
16a = 4b
a = b/4
Substituting this expression for a into the last equation, we get:
b/4 - b = -3
b - 4b = -12
-3b = -12
b = 4
a = b/4
a = 4/4
a = 1
Therefore, the quadratic function in standard form is:
f(x) = x² - 4x - 12
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Drag-and-Drop Technology-Enhanced
An expression is shown.
14a +7+ 5b+ 2a + 10b
Move words into the columns to describe the parts of the expression. Not all words will be used, and each column should
have at least one word to describe it.
14a
sum
term
factor
7
5
product
quotient
coefficient
2a + 10b
The value of expression 14a +7+ 5b+ 2a + 10b will be 16a + 15b + 7
Since Expression is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
We are given the expression as;
14a +7+ 5b+ 2a + 10b
Combine like terms;
14a + 2a + 10b +7+ 5b
16a + 15b + 7
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Please answer correctly and explain reasoning for brainliest (If correct) and thanks!
Therefore, the correct answer is option C that is LM is reflected over the y-axis to L'M.
What is transformation?In mathematics, a transformation refers to a change in the position, shape, or size of a geometric figure. Transformations can be classified into four types: translation, rotation, reflection, and dilation.
Here,
The transformation of LM to L'M' involves both translation and reflection. To see the translation, we can compare the x- and y-coordinates of L and L', as well as M and M':
The x-coordinate of L' is 5 units more than the x-coordinate of L: -2 = -7 + 5.
The y-coordinate of L' is 2 units less than the y-coordinate of L: -4 = -2 - 2.
The x-coordinate of M' is 5 units more than the x-coordinate of M: 5 = 0 + 5.
The y-coordinate of M' is 2 units less than the y-coordinate of M: 3 = 5 - 2.
Therefore, we can conclude that LM is translated 5 units right and 2 units down to L'M'. This eliminates options OB and OD. To see the reflection, we can compare the x-coordinates of L and M, and their respective x-coordinates in L' and M':
The x-coordinate of L is negative and the x-coordinate of M is positive.
The x-coordinate of L' is negative and the x-coordinate of M' is positive.
Therefore, we can conclude that LM is reflected over the y-axis to L'M'. This eliminates option OA. Therefore, the correct answer is option OC.
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Which expression is equivalent to (x-3)(2x^(2)-3x-1)
The "Expression" which is considered equivalent to this expression "(3x-1)-2(x+2)' is (c) x-5.
In mathematics, an algebraic expression is a combination of numbers, variables, which are joined by arithmetic operations (such as addition, subtraction, multiplication, and division).
We have to find the equivalent-expression for (3x-1)-2(x+2);
⇒ (3x-1)-2(x+2),
⇒ (3x - 1) - 2x - 4,
Combing the like-terms together in the above expression,
We get,
⇒ 3x - 2x -1 - 4,
⇒ x - 5,
Therefore, the correct equivalent expression is Option (c).
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The given question is incomplete, the complete question is
Which of the following expression is equivalent to (3x-1)-2(x+2)?
(a) x+3
(b) x+1
(c) x-5
(d) x-3
what's equivalent to x^2-4x-l2
Answer:
Assuming you meant to write "x^2 - 4x - 12", there are a few equivalent forms that you could use to represent this expression. One common form is:
(x - 6)(x + 2)
Step-by-step explanation:
This is the factored form of the expression, which shows that it can be written as a product of two linear factors. To see why this is true, you can use the distributive property to expand the product:
(x - 6)(x + 2) = x(x + 2) - 6(x + 2) = x^2 + 2x - 6x - 12 = x^2 - 4x - 12