The function c ( x ) = 63 ⋅ ( 1.03 ) x models the cost in dollars, c , of 1 ounce of a certain chemical used in a laboratory. x

Question

3 years ago

11

represents the number of years since 1990.
How much does an ounce of the chemical cost in 2005? (Do NOT type the $ with your answer.)

1 answer:

Fudgin [204] · Answer 1 · 2022-04-12T00:46:50+03:00

4 0

9514 1404 393

Answer:

$98.15

Step-by-step explanation:

2005 is 15 years after 1990. Using the formula we find ...

c(15) = 63·1.03^15 ≈ 63·1.55797

c(15) ≈ 98.152

An ounce of the chemical costs about $98.15 in 2005.