Evaluate.Let a = 
. Find 9a.
A. 
B. 
C. 
D. 
Answer: D
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Measurements are made at two different times. Find the absolute change and then find the percentage change. Round answers to the nearest tenth if necessary.In 1960, in the town of Thornton the percentage of 50 year old women that had never been married was 
Last year, the percentage of 50 year old women that had never been married was 
A. Absolute change: 178.6 percentage points Percentage change: 17.5% B. Absolute change: 17.5 percentage points Percentage change: 64.1% C. Absolute change: -17.5 percentage points Percentage change: -64.1% D. Absolute change: 17.5 percentage points Percentage change: 178.6%
Using the factoring method, solve for the roots of the quadratic equation.10y2 + 29y + 10 = 0
A. y = 
, y = - 
B. y = - 
, y = - 
C. y = - 
, y = - 
D. y = 
, y = 
Decide whether or not the functions are inverses of each other.f(x) = 8x2 + 4, domain [0, ?); g(x) = 
, domain [4, ?)
A. No B. Yes
Find the median of the random variable for the given probability density function.f(x) = 
; [1, 5]
A. 1
B. 3
C. 4
D. 