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Svetlanka [38]
4 years ago
11

Given: f(x) = 3 - x; g(x) = -2x Find g[f(-1)].

Mathematics
1 answer:
Ganezh [65]4 years ago
8 0
G[f(-1)]
-2x[3-x(-1)]
-2x[-3-x]
6x-x
5x
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yaroslaw [1]

Answer:

96 feet

Step-by-step explanation:

Velocity = distance/time

From the question , the velocity = 96 feet per sec

Time t = 1

Using the above formula

96 = d/1

Cross multiply

d = 96 feet

6 0
3 years ago
Y and Z are vertical angles <br> Y=(2X + 7)<br> Z=(4X - 17)<br> value of x
Yuki888 [10]
Vertical angles are equal to each other, so to solve this, you can set the angle measures equal to each other and solve for x.

        Z = Y             Replace X and Y with their values
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6 0
4 years ago
You buy a total of 25 burgers and tacos for $67.50. The burgers cost $3.50 each and the tacos cost $2.25 each. Find the number o
Ahat [919]

Answer: you bought 9 burgers and 16 tacos

Step-by-step explanation:

Let x represent the number of burgers that you bought.

Let y represent the number of tacos that you bought.

You buy a total of 25 burgers and tacos. It means that

x + y = 25

The burgers cost $3.50 each and the tacos cost $2.25 each. The total cost of the burgers and tacos that you bought is $67.50. It means that

3.5x + 2.25y = 67.5- - - - - - - - - - - - 1

Substituting x = 25 - y into 1, it becomes

3.5(25 - y) + 2.25y = 67.5

87.5 - 3.5y + 2.25y = 67.5

- 3.5y + 2.25y = 67.5 - 87.5

- 1.25y = - 20

y = - 20/ - 1.25

y = 16

x = 25 - y = 25 - 16

x = 9

5 0
3 years ago
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avanturin [10]
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6 0
3 years ago
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mixas84 [53]

Answer:21

Step-by-step explanation:

7 0
3 years ago
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