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2 years ago

12

The height of a candle, in centimeters, can be modeled by the linear equation h = 28 - 2t, where t represents the hours that the

candle has been burning.
Interpret the slope of this equation in the context of this problem:

1 answer:

Ostrovityanka [42]2 years ago

5 0

The slope is -2. In context to this problem, the candle will burn away 2cm of its length every hour.

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The functions r and s are defined as follows.

irina1246 [14]

Answer:

r(s(-2)) = -2

Step-by-step explanation:

We are given these following functions:

$r(x) = -2x + 2$

$s(x) = x^2 - 2$

Find the value of r(s (-2)).

First we find the composition of r and s functions. It is:

$r(s(x)) = r(x^2-2) = -2(x^2-2) + 2 = -2x^2 + 6$

At x = -2

$r(s(-2)) = -2(-2)^2 + 6 = -8 + 6 = -2$

r(s(-2)) = -2

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