**Kind note:
Since there are two variables in one equation, it is impossible to determine a specific value for x and y. (Unless the trial-and-error method is used).
How to determine the value of x using the equation (16x - 8y = 72)?
To determine the value of "x", we need to isolate the x-variable on one side. The value (or expression) obtained on the opposite side of the x-variable will be the value of x.
How to determine the value of y using the equation (16x - 8y = 72)?
To determine the value of "y", we need to isolate the y-variable on one side. The value (or expression) obtained on the opposite side of the y-variable will be the value of y.
Determining the x-variable:
⇒ 16x - 8y = 72
⇒ 16x = 72 + 8y [Adding 8y to both sides of the equation]
⇒ 16x/16 = (72 + 8y)/16 [Dividing 16 to both sides of the equation]
⇒ x = 9/2 + y/2 [Simplifying both sides of the equation]
⇒ x = (9 + y)/2 [Combining the denominators]
Determining the y-variable:
⇒ 16x - 8y = 72
⇒ 16x - 8y - 16x = 72 - 16x [Subtracting 16x both sides of the equation]
⇒ -8y = 72 - 16x [Simplifying both sides of the equation]
⇒ -8y/-8 = (72 - 16x)/-8 [Dividing -8 to both sides of the equation]
⇒ -8y/-8 = 72/-8 - 16x/-8
⇒ -8y/-8 = -72/8 + 16x/8
⇒ y = -9 + 2x [Simplifying both sides of the equation]
First simplify it to suitable form of slope intercept then you can get values
16x-8y=722x-y=9y=2x-9The pairs are
(1,-7)(2,-5)(3,-3)(4,-1)(5,1)And so on
Determine the total annual fica tax for an annual salary of $38,480. a. $294.37 b. $717.96 c. $2,385.76 d. $2,943.72
The total annual fica tax for an annual salary of $38,480 is: d. $2,943.72.
Total annual FICA taxFICA tax comprises of:
Social security= 6.2%
Medicare=1.45%
Hence:
Social Security=$38,480 x 0.062
Social security =$2,385.76
Medicare= $38,480 x 0.0145
Medicare=$557.96
FICA tax=$2,385.76+$557.96
FICA tax=$2,943.72
Therefore the total annual fica tax for an annual salary of $38,480 is: d. $2,943.72.
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Answer:
D
Step-by-step explanation:
State the center and radius of each circle. then write the equation of the circle in standard form.
See attached:
Answer:
Step-by-step explanation:
Center: (h, k) (the coordinate of the middle point)r(radius): d(diameter)/2 (can be found by counting the number of units vertically or horizontally)Standard form of a circle: (x - h)² + (y - k)² = r²1.
Center: (-2, 3)
Radius: 10/2 = 5
Standard form/ equation: (x + 2)² + (y - 3)² = 25
Standard form:
(x - (-2))² + (y - 3)² = 5²
(x + 2)² + (y - 3)² = 25
2.
Center: (1, 1)
Radius: 6/2 = 3
Standard form/ equation: (x - 1)² + (y - 1)² = 9
Standard form:
(x - 1)² + (y - 1)² = 3²
(x - 1)² + (y - 1)² = 9
Hope this helps!
#1
Centre(-2,3)Radius=5=rEquation:-
(x-h)²+(y-k)²=r²(x+2)²+(y-3)²=5²(x+2)²+(y-3)²=25★More simply.
x²+4x+4+y²-6y+9=25x²+y²+4x-6y=12#2
Centre(1,1)Radius=3Equation
(x-1)²+(y-1)²=3²(x-1)²+(y-1)²=9★WILL GIVE BRAINLIEST
Write 2/7x(1.4x^2-3.5y) as a polynomial
The expression (2/7)x (1.4x² - 3.5y) can be written in the form of a polynomial as 0.4x³ - xy.
What is polynomial?Polynomial is an algebraic expression that consists of variables and coefficients. Variables are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.
The expression is given below
[tex]\rm \dfrac{2x}{7} \times (1.4x^2-3.5y)[/tex]
The expression can be written in the form of the polynomial
[tex]\rightarrow \rm \dfrac{2x}{7} \times (1.4x^2-3.5y)\\\\\\\rightarrow \rm \dfrac{2x \times 1.4x^2}{7} - \dfrac{3.5y\times 2x}{7 }\\\\\\\rightarrow \dfrac{2.8x^3}{7} - \dfrac{7xy}{7 }\\\\\\\rightarrow 0.4x^3 - xy[/tex]
The expression in the form of a polynomial is given as
[tex]\rm \rightarrow 0.4x^3 - xy[/tex]
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Manuel labore earns $19. 50/hr. And works an average of 38 hours a week. He is considering renting a house for $1,700/ month. His real estate friend recommends he spend no more than 28% of his monthly income on housing.
Answer:
Given:
Wage = $19.50 per hourWeekly hours worked = 38⇒ Weekly income = 38 × $19.50 = $741
⇒ Monthly income = ($741 × 52.14) ÷ 12 = $3219.65
28% of monthly income
= 0.28 × $3219.65 = $901.50
As $1700 > $901.50 Manuel should not rent the house for $1700 per month since it is more than 28% of his income.
The cost of rent at $1700 per month is actually 52.8% of his monthly income:
(1700 / 3219.65) x 100 = 52.8%
Wendy drives a car 110 kilometers per hour. What is this rate, in miles per hour, to the nearest tenth?
Answer:
68.3 miles per hour
Step-by-step explanation:
One kilometer is 0.62 miles.
110 times 0.62 is 68.3
Wendy's rate of 110 kilometers per hour is 68.3 miles per hour.
To convert kilometers per hour to miles per hour, we need to use the conversion factor of 1 kilometer = 0.621371 miles.
Given that Wendy drives at a rate of 110 kilometers per hour.
we can multiply this value by the conversion factor to obtain the equivalent rate in miles per hour.
110 kilometers per hour × 0.621371 miles per kilometer
= 68.34381 miles per hour
We get 68.3 miles per hour.
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Karl earns $8.50 per hour at his part-time job. Last week he worked 18 hours. This week he worked 14 hours. What is the total amount of money that Karl earned for working these two weeks?
12x + 3y = 9 solve for y
Answer:
[tex]\Longrightarrow: \boxed{\sf{y=3-4x}}[/tex]
Step-by-step explanation:
To solve for y, you have to isolate it on one side of the equation.
12x+3y=9First, you have to subtract by 12x from both sides.
[tex]\Longrightarrow:\sf{12x+3y-12x=9-12x}[/tex]
Solve.
[tex]\Longrightarrow:\sf{3y=9-12x}[/tex]
Then, you divide by 3 from both sides.
[tex]\Longrightarrow:\sf{\dfrac{3y}{3}=\dfrac{9}{3}-\dfrac{12x}{3}}[/tex]
Solve.
[tex]\sf{\dfrac{9}{3}-\dfrac{12x}{3}}[/tex]
[tex]\sf{\dfrac{9-12x}{3}}[/tex]
Use the distributive property.
[tex]\underline{\text{DISTRIBUTIVE PROPERTY:}}[/tex]
⇒A(B+C)=AB+AC9-12x=3(3-4x)
[tex]\sf{\dfrac{3\left(3-4x\right)}{3}}[/tex]
Divide the numbers from left to right.
3/3=1
3-4x
Then, rewrite the problem down.
[tex]\Longrightarrow: \boxed{\sf{y=3-4x}}[/tex]
Therefore, the correct answer is y=3-4x.I hope this helps! Let me know if you have any questions.
Answer:
y = (3) - (4x)
Step-by-step explanation:
Note: Since there is only one equation given, the value of "y" will not be a fixed value.
Given equation:
12x + 3y = 9Our main goal to solve for "y" is to have the y-variable on one side, and a specific value or variable on the other side (e.g., y = 3 or y = 4x) . Start out by subtracting both sides by 12x. This will isolate the y-variable and it's cooeficient (3).
⇒ 12x + 3y = 9⇒ 12x + 3y - 12x = 9 - 12x⇒ 3y = 9 - 12xOnce the y-variable and the cooeificent of the variable have been isolated, we can divide both sides by the cooeficient to isolate the variable.
⇒ 3y/3 = (9 - 12x)/3⇒ y = (9 - 12x)/3⇒ y = (9 ÷ 3) - (12x ÷ 3)⇒ y = (3) - (4x)Therefore, the value of "y" is 3 - 4x.
I need help like a lot
i just want the points but if i do some math based off of the question i think its C
hey please i need this really quick
Answer:
the answer of that question is 45
all possible 4 digit patterns with 2,4,5,6,7,8,9
Answer:
7^4 = 2401
Step-by-step explanation:
___, ___, ___, ___
all blank spaces can be filled with all 7 numbers each.. so 7*7*7*7 is total number of paterns you can get if repititions is allowed
please help, i’ll give 20 points
3. A line passes through (9. -9) and (10,-5).
a. Write an equation for the line in point-slope form.
b. Rewrite the equation in standard form using integers.
y-9= 4(x-9); -4x + y = 45
y+9= 4(x-9); -4x+y = -45
y-9= 4(x +9); -4x+y = 45
y+9= 4(x +9); -4x+y = -45
Step-by-step explanation:
a. y-y1/y2-y1=x-x1/x2-x1
y+9/-5+9=x-9/10-9
y+9/4=x-9/1
y+9/4=x-9
b. y+9=4(x-9)
y+9=4x-45
y-4x=-45-9
y-4x=-54
3x−4/5=−1/2
What is the value of x?
HELP
Marine had a cable that was 875 feet long. He cut the cable into 23 equal pieces.
Which measurement is closest to the length of each of these pieces of cable?
A. 38 feet
B. 35 feet
C. 31 feet
D. 30 feet
Answer:
its answer a :)
Step-by-step explanation:
875/23 = 38.04, round down to get 38
Express the number 68,708 in word form and expanded form.
Word form ?
Expanded form ?
The function f is defined by f(x) = x^2 + 3x -10 , if f(x + 5) = x^2 + kx + 30, k=
Answer:
k = 13
Step-by-step explanation:
substitute x = x + 5 into f(x) , that is
f(x + 5) = (x + 5)² + 3(x + 5) - 10 ← expand squared factor using FOIL
= x² + 10x + 25 + 3x + 15 - 10
= x² + 13x + 30
compare this with f(x + 5) = x² + kx + 30
for the 2 expressions to be equal , then k = 13
Find the equation of the line that goes through the points (2, 2) and (6, 6).
y = 6x + 2
y = -x
y = 2x + 6
y = x
Answer:
D
Step-by-step explanation:
y=6x+2
2=12+2
NO
y=-x
2=-2
NO
y=2x+6
2=4+10
NO
y=x
2=2
6=6
Answer:
[tex]y=x[/tex]
Step-by-step explanation:
We will use slope-intercept form:
[tex]y=mx+b[/tex]
Where [tex]m=[/tex]slope and [tex]b =[/tex]y-intercept
To find the slope we use the slope formula:
[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
We plug in the coordinates getting:
[tex]\frac{6-2}{6-2} =\frac{4}{4} = 1[/tex]
So we have a slope of 1:
[tex]y=(1)x+b[/tex]
If we look at the answer choice we see that only one of them has a slope of 1 so the equation is:
[tex]y =x[/tex]
Find the length of the missing side please help
Step-by-step explanation:
7. Since they are similar triangles we have:
[tex] \frac{10}{8} = \frac{x}{12} \\ \\ x = 15[/tex]
So DF is 15
8. They are also similar. So:
[tex] \frac{14}{7} = \frac{x}{5} \\ x = 10[/tex]
So PR is 10
Miranda is standing at the corner of a
70 m by 110 m soccer field. She needs
to go to the corner diagonally opposite
from where she is standing. How
much shorter is it if she cuts across the
diagonal instead of walking around
the perimeter of the field? Round your
answer to the nearest tenth.
The distance between the diagonal and the the perimeter of the field is given by D = 229.2 m
What is the diagonal of a rectangle?The diagonal of a rectangle is calculated by the formula
From the Pythagoras Theorem , The hypotenuse² = base² + height² , and
Diagonal of a Rectangle = √ ( Length )² + ( Width )²
Given data ,
Miranda is standing at the corner of a 70 m by 110 m soccer field.
Let the dimensions of the rectangle be 70m x 100m
Now , the length of the diagonal is D
And , from the Pythagoras theorem ,
Diagonal of a Rectangle = √ ( Length )² + ( Width )²
D = √ ( 70 )² + ( 110 )²
D = 130.8 m
Now , the perimeter of the rectangle is P = 2 ( 70 + 110 ) = 360 m
And , walking around the perimeter of the field
Now , by cutting across the diagonal instead of walking around the perimeter of the field, Miranda can save approximately 360 m - 130.8 m ≈ 229.2 m.
Hence , the diagonal of the rectangle is 130.8 m
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Please help!! A red block and a block are on a scale right. The red block weighs 9 ounces. The total weight of both blocks is 16 ounces. Which inequality best represents b, the possible weight of the blue block in ounces?
Answer:
b ≤ 7
Step-by-step explanation:
Given that:
A red block and a blue block are on a scale. The red block weights 9 ounces. The total weight of both blocks is 16 ounces.
To Find:
Which inequality best represents b, the possible weight of the blue block in ounces?
Knowing that;
< ⇒ less than
> ⇒ Greater than
≤ ⇒ less than or equal to
≥ ⇒ greater than or equal to
Solve:
Since the total blocks is 16 ounces that means it can't be pass 16 also known as can't be greater than. As well as, it given us that the red block weight 9 ounces that means
16 - 9 = 7
which given us that it must be equal to 7 or less than 7 to make it true.
Thus,
b ≤ 7
Kavinsky
Solve the following system mathematically. Place the solution in the ordered pair set provided below
y = 4x - 11
- 4x - y = -5
Answer:
ok real answer 2,-3
Step-by-step explanation:
Colleen is attending a carnival. The price of admission to the carnival is shown. It costs $3 to play a game. Colleen has $35.
A Ferris wheel is shown. Carnival admission is eight dollars.
What is the greatest number of games she can play?
Answer:
9
Step-by-step explanation:
Reduce the admission fee. Then divide the rest with cost per game
35 - 8 = 27
=> 27/3 = 9
help I have to turn this is tomorrow and I don’t know how to do it
Step-by-step explanation:
The area of the triangular base is: 19
square units
How to calculate the base area
The given parameters are:
Volume = 27.36 cubic units
Height = 2.88 unit
The volume of a triangular prism is:
V = 0.5 * B *h
Where B represents the base area.
So, we have:
27.36 = 0.5 * B * 2.88
27.36 B * 1.44 -
Solve for B
B = 19
Hence, the area of the triangular base is: 19 square units
Good people I critically need an assistance with great pleasure!!
Answer:
(y + 3)² - 8
Step-by-step explanation:
y² + 6y +1
Step 1: Divide the co efficient of y by 2
6 ÷2 = 3
Step2: Now find the square of 3
3² = 9
Step3: Add and subtract 9
y² + 6y + 9 - 9 + 1 = y² +6y + 9 - 8
= y² + 2*y*3 + 3² - 8
Compare y² +2 * y*3 + 3² with a² +2ab + b²
= (y + 3)² - 8
Write
8
38
in lowest terms.
Answer:
4/19
Step-by-step explanation:
Both the numerator and denominator can be divided by 2, giving 4/19
I hate asking for help, but maths GCSE edexcel people or anyone who can do this please help! Need explanation
Basically to find solutions of the equation. Find the x intercept points.
Equation: x² - 4x + 2
when solved using quadratic formula:
[tex]\dashrightarrow \sf x_{1,2}= \dfrac{-\left(-4\right)\pm \sqrt{\left(-4\right)^2-4\cdot \:1\cdot \:2}}{2\cdot \:1}[/tex]
[tex]\dashrightarrow \sf x_1 \dfrac{-\left(-4\right)+2\sqrt{2}}{2\cdot \:1},\:x_2=\dfrac{-\left(-4\right)-2\sqrt{2}}{2\cdot \:1}[/tex]
[tex]\dashrightarrow \sf x=2+\sqrt{2}, \ 2-\sqrt{2}[/tex]
[tex]\dashrightarrow \sf x=3.414, \ 0.586[/tex]
These are the solutions to the quadratic equation.
Answer:
x ≈ 0.6 , x ≈ 3.4
Step-by-step explanation:
the solutions to the quadratic equation from the graph are where the graph crosses the x- axis.
these are at approximately x = 0.6 and x = 3.4
The sum of the measures of the interior angles of a polygon is given. How
many sides does the polygon have?
3) 3060
4) 6480
Sides:
Sides:
Answer:
19sides if sum is 3060
38sides if sum is 6480
What is the most important question jamir needs to consider before he agrees to a lease? will he enjoy driving his new car? will he be able to stay under the 15,000 miles per year limit? will he be able to afford his $432 payment? will he be able to come up with the $2,500 down payment?
Answer:
Answer is B. Will he be able to stay under the 15,000 miles per year limit?
Step-by-step explanation:
Just took the tes
Answer:
B. Will he be able to stay under the 15,000 miles per year limit?
Step-by-step explanation:
Select the correct answer from each drop-down menu. observe the functions below. complete the following sentences to compare the two functions. over the interval , the average rate of change of g is greater than the average rate of change of f. as the value of x increases, the average rates of change of f and g , respectively. when the value of x is equal to 8, the value of . it can be further generalized that a quantity increasing exponentially will exceed a quantity increasing linearly.
The answers will be:
(4, 5)remain constant and increaseg(x) exceeds the value of f(x)What is Slope and curve?a) The slope of the curve g(x) roughly matches that of f(x) at about x=4. Above that point, the curve g(x) is steeper than f(x), so its average rate of change will exceed that of f(x). An appropriate choice of interval is (4, 5).
b) As x increases, the slope of f(x) remains constant (equal to 4). The slope of g(x) keeps increasing as x increases. An appropriate choice of rate of change descriptors is (remain constant and increase).
c) The curves are not shown in the problem statement for x = 8. The graph below shows that g(x) has already exceeded f(x) by x=7. It remains higher than f(x) for all values of x more than that. We can also evaluate the functions to see which is greater:
f(8) = 4·8 +3 = 35
g(8) = (5/3)^8 ≈ 59.54 . . . . this is greater than 35
g(8) > f(8)
d) Realizing that an exponential function with a base greater than 1 will have increasing slope throughout its domain, it seems reasonable to speculate that it will always eventually exceed any linear function (or any polynomial function, for that matter).
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1. (4,5)
2. remain constant and increase
3. g(x) exceeds the value of f(x)
4. eventually
Step-by-step explanation:
(Pls need help ASAP) Willing to give 10 points for 1 question)
Answer:
D. {(1,2) , (2,3) , (3,4) , (4,5)}
Step-by-step explanation:
Functions are relations with one output for any unique input. Relations that pass the vertical line test have one output for each input. In this case, D was the only set that met the criteria.