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Natalka [10]
3 years ago
12

I need HELP PLZZZZZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
hichkok12 [17]3 years ago
4 0

Answer:

7 C

Step-by-step explanation:

We want to find the y value for an x value of -9

The y value for the x value of -9 is 7

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The functions f and g are defined by f(x)=2x+1 and g(x)= 5x-1. find<br>a. fg(3)<br><br>​
erastovalidia [21]
G(3) - sub in 3 into g
5(3)-1 = 14

sub into f
2(14)+1 = 29

fg(3) = 29
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2 years ago
How fast can he jog?
Hitman42 [59]
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2 years ago
How can you use a formula for one measurement to write a formula for a different measurement?
Dmitrij [34]

Answer:

Write the formula for one measurement, then solve the formula for the different measurement you want to find and use this new formula to find that measurement.

Step-by-step explanation:

 We can understand this through an example.

If we need to find the lenght of a rectangle whose width is 4 feet and whose perimeter is 28 feet, we can use a formula for one measurement to write a formula for a different measurement:

 - We need to write the formula for the perimeter of a rectangle:

P=2l+2w

Where "l" is the lenght and "w" is the width.

- Since we know the width and the perimeter of the rectangle and we need to find the lenght, we can solve for "l":

P=2l+2w\\\\P-2w=2l\\\\l=\frac{P-2w}{2}

Now we get a new formula for calculate a differente measurement (the lenght of the rectangle).

- Substituting values, we get:

l=\frac{28ft-2(4ft)}{2}=10\ ft

3 0
3 years ago
A number that is equal to x less than 80
krok68 [10]

Answer:

# = 80 - x

Step-by-step explanation:

You can't solve it :/ I don't think

I hope this helped

6 0
2 years ago
Merlin Industries bought a laptop for $2,100. It is expected to depreciate at a rate of 14% per year. What will the value of the
bearhunter [10]

988

A year later will depreciate $294

The following year $253

On the third year $217

The fourth year. $187

And the 5th year. $161

5 0
2 years ago
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