Determine whether the function is a probability density function over the given interval.f(x) = 
x2, 1 ? x ? 4
A. Yes
B. No
Answer: B
Mathematics
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Solve the problem.If f(x) = 
and g(x) = 7x + 4, find g(f(x)).
A. x + 8
B. x
C. 7x + 24
D. - 
Mathematics
Refer to this figure to answer the question. Assume 
and 
are parallel.
Are ?CDA and ?ADE adjacent angles?
A. No B. Yes
Mathematics
Add or subtract as indicated. Simplify, if necessary.
- 
A. 
B. 3
C. 
D. 
Mathematics
Find the values that make the equation true.
= 
A. a = 2, x = 7 B. a = 7, x = 2 C. a = 7, x = 7 D. a = 2, x = 2
Mathematics