3 years ago

If y varies inversely as x and y=3 when x=4, then y=12 when x=15 True or false ?

Mathematics

1 answer:

Elden [556K]3 years ago

8 0

y=12 is false answer.

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2 years ago

Find the average rate of change of the function between the given values of x. y = 9+ 5x + 0.5x2 between x = 2 and x = 4.

svet-max [94.6K]

Answer:

The average rate of change is 8.

Step-by-step explanation:

The formula to calculate the average rate of change of a function F(x) is:

$\frac{F(b)-F(a)}{b-a}$

In this case, F(x) = $0.5x^{2} +5x+9$

a=2 and b=4

You have to evaluate x=2 (which is a in the formula) and x=4 (which is b in the formula) in the function.

In order to obtain F(b) and F(a) you have to replace x=4 and x=2 in the given function:

F(b) = $(0.5)4^{2} + 5(4) +9= 37$

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The answer is 8.

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2 years ago

What is 55 divided by 1 1/2

Karolina [17]

Answer:

55 divided by 11/2 is 10

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3 years ago

Read 2 more answers