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Ierofanga [76]
3 years ago
6

The cost to rent a paddleboard for a different number of hours is shown. Is the cost a function of the rental time?

Mathematics
2 answers:
oksano4ka [1.4K]3 years ago
8 0
Its d. Each input only needs one output. It doesn’t matter if the output is the same. It searched this up on Google.
tatiyna3 years ago
3 0

Answer:

the answer is D (Yes, since each input (time in hours) has a single output (cost in dollars).

Step-by-step explanation:

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Given f(x) = x² - 10x + 22, what is the range of f?
adoni [48]

Answer:

[-3, ∞)

Step-by-step explanation:

There are many ways to find the range but I will use the method I find the easiest.

First, find the derivative of the function.

f(x) = x² - 10x + 22

f'(x) = 2x - 10

Once you find the derivative, set the derivative equal to 0.

2x - 10 = 0

Solve for x.

2x = 10

x = 5

Great, you have the x value but we need the y value. To find it, plug the x value of 5 back into the original equation.

f(x) = x² - 10x + 22

f(5) = 5² - 10(5) + 22

      = 25 - 50 +22

      = -3

Since the function is that of a parabola, the value of x is the vertex and the y values continue going up to ∞.

This means the range is : [-3, ∞)

Another easy way is just graphing the function and then looking at the range. (I attached a graph of the function below).

Hope this helped!

6 0
3 years ago
When 4(0.5x+2.5y-0.7x-1.3y+4) is simplified, what is the resulting expression?
padilas [110]

Answer:

-0.8x + 4.8y + 16

Step-by-step explanation:

4(0.5x+2.5y-0.7x-1.3y+4) = 4( 0.5x - 0.7x  + 2.5y - 1.3y + 4)

= 4( -0.2x  + 1.2y + 4)

= 4*(-0.2x)  + 4 *1.2y + 4*4

= -0.8x + 4.8y + 16

8 0
3 years ago
Read 2 more answers
Describe the solutions of 5 <n​
Ainat [17]

Answer:

D

Step-by-step explanation:

All real number less than 5

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4 years ago
Find dy of the fol<br>of the following<br>fuction​
ikadub [295]

write question properly bro

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3 years ago
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Lynna [10]
Slope=-1 .................
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3 years ago
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