Question

What is p(-2)? Rounded to the nearest tenth please:)

Answer 1

Answer:

0.2

Step-by-step explanation:

$\text{f(x) = }\dfrac{90}{9+\frac{50}{e^x}}$

$\text{f(-2) = }\dfrac{90}{9+\frac{50}{e^{-2}}}$

$\text{f(-2) =} \dfrac{ 90 }{9 + 50*e^2}$

Now we can work out the denominator separately.

9 + 50*e^2

9 + 50*7.389

9 + 369.45

378.45

Now use this number to get the final answer.

f(-2) = 90 / 378.45

f(-2) = 0.237   To the nearest tenth

f(-2) = 0.2

There was a lot of movement for that e^x factor make sure you study carefully how that moved around and why. It's a good question. Get what you can from it.