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tekilochka [14]
3 years ago
15

Let f(x)=-4x+7 and g(x)=10x-6. Find f(g(x))

Mathematics
1 answer:
finlep [7]3 years ago
7 0
F(g(x)) = -4(10x-6) + 7
 = -40x + 24 + 7
 = -40x + 31
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Simplify <br> 4y + 7x + 16y – 12x
vredina [299]
-5x + 20y
That is the answer, I would like brainliest please
5 0
1 year ago
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Evaluate and match each expression on the left to its value on the right, when x = 9 and y = 6.
kolezko [41]
Answers: 12-x=3 | x+3y=27 | 4y-10=14 | 1/3xy=18

Explanation: x=9 and y=6
12-(9)=3 | (9)+3(6)=27 | 4(6)-10=14 | 1/3(9)(6)=18

5 0
3 years ago
The fabric cost 7cents per square inch. She will only pay for the fabric used to cover the box, even if there is waste or extra.
DIA [1.3K]

Answer:

Shyla will pay about 63 cents to cover the box

Step-by-step explanation:

Length of the box ( l ) = 7 inches

Width of the box (b) = 11 inches

Height of the box (h) = 8 inches

<em></em>

<em>We can solve this equation by following two simple steps.</em>

1. The first step is to find the total surface area of the box. This is the total area that the decorative fabric will be covering.

We can get this by the following formula:

SA=2( length X width) +2( length X height )+2(height X width)

SA = 2( 7 X 11 ) + 2(7 X 8) + 2 (8 X 11 ) = 442 square inches

2. The second step is to divide the total surface area by the price of the fabric per square inch.

This will be 442 square inches divided by 7 cents per square inch  = 63.14 cents

Shyla will pay about 63 cents to cover the box

4 0
3 years ago
How do I figure the equation out
Tatiana [17]

Answer:

<em><u>Answer for Parallel line:</u></em> y = 3x - 13

<em><u>Answer for Perpendicular line: </u></em>y = (-1/3)x +17/3

Step-by-step explanation:

<em><u>Parallel line</u></em>

For the slope of a line parallel to another (given) line, just read the slope of the given line. It (in this case) is the coefficient in front of the x.

m = 3

So far what you have is y = 3x + b

To find b, use the given point (2,5)

x = 2

y = 5  Substitute these values into the skeletal equation. y = 3x + b

2 = 3*5 + b     Subtract 15 from both sides.

2 = 15 + b

2 - 15 = b switch sides

b = - 13

Answer y = 3x - 13

Part B

<em><u>Perpendicular line</u></em>

The perpendicular line will have a slope determined by the following formula

m1 * m2 = - 1

m1 is the slope of the given line which is 3

3 * m2 = - 1

m2 = - 1/3

So far, what you have is

y = (-1/3)x + b To find b, use the same 2 givens as above.

y = 5

x = 2

Substitute into the skeletal equation.

5 = (-1/3)(2) + b

5 = -2/3  + b  Switch sides.  

b - 2/3 = 5  Add 2/3 to both sides.

b = 5 + 2/3

b = 5 2/3 = 17 / 3

Answer

y = (-1/3)x + 17/3

If this doesn't seem right, and you have choices, could you please list them?

4 0
3 years ago
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