To find the inverse of function f(x), follow these steps.
1) Replace f(x) with y.
2) Switch x and y.
3) Solve for y.
4) Replace y with f^(-1)(x).
I think you have to estimate to a whole so 2 1/2 would be 3
Answer:
Function= T=K/M
Mass of Sample after 40 yrs = 31.746032 grams
Step-by-step explanation:
As time increases, the mass decreases, hence it's inverse proportion
T ∝ 1/M
Function = T = K/M
Using direct proportion to evaluate mass after 40 yrs
when T= 63yrs, Mass = 0.5M
When T = 40 yrs Mass = X
X = 0.3174603M
Hence mass after 40 years = 0.3174603(100) = 31.746032 grams
Answer:
116.6 pounds
Step-by-step explanation:
Set up a proportion where x is the weight of her desk in pounds:
= 
Cross multiply:
x = 116.6
So, her desk is 116.6 pounds
Answer:
$288
Step-by-step explanation:
what is 900% of 28?
x = 9 × 28
x = 288