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Mekhanik [1.2K]
3 years ago
11

If f(x) = x2 + x - 8, find f(-3).

Mathematics
1 answer:
dalvyx [7]3 years ago
5 0

Answer:

-17

Step-by-step explanation:

it's telling you to replace x with -3.

You have to replace all the x's with -3.

(-3)2 + (-3) - 8 = -17

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7.50 times hours would be her pay then add the bonus x number of bouquets 

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3 years ago
The length of a rectangle is 9 centimeters more than half
Sedaia [141]

Answer:

l = 16 cm

Step-by-step explanation:

Let's set the width of the rectangle as "w" and the length of the rectangle as "w/2 + 9".

The perimeter of a rectangle is calculated by adding up the value of all of its side lengths. Therefore, we can find the perimeter using 2l + 2w = P.

We can substitute 60 for P and w/2 + 9 for l.

  • 2(w/2 + 9) + 2w = 60
  • 2w/2 + 18 + 2w = 60
  • w + 18 + 2w = 60
  • 3w + 18 = 60
  • 3w = 42
  • w = 14

Substitute w = 14 into the equation for length l.

  • l = w/2 + 9
  • l = 14/2 + 9
  • l = 16

The length of the rectangle is 16 cm.

4 0
3 years ago
A thunderstorm cloud holds about 6,200,000,000 raindrops. Which of the following shows this number in scientific notation? Answe
maksim [4K]

Answer:

the answer is G

which is 6.2*10 to the 9th power.

Step-by-step explanation:

In scientific notation you must leave one digit to the place value of ones

so that one digit is 6

So ue come up with 6.2 when ue eliminate all other zeros and end the decimal point between 6 and 2 and that way you have 6.2*10 to the 9th power

6 0
3 years ago
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If aerts305 is 16 and his friend is 15 who’s older
Angelina_Jolie [31]

Answer:

aerts is older by 1 year

Step-by-step explanation:

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3 years ago
Evaluate -x - y when x = -12 and y = 2
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Answer:

-14

Step-by-step explanation:

subtract

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