Provide an appropriate response.The probability distribution for the random variable X is: 
What is the expected value of X?
A. 0.62
B. 0.26
C. 0.22
D. 0.50
Answer: A
Mathematics
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Find the requested composition of functions.Given f(x) = -5x + 9 and g(x) = 3x + 2, find (g ? f)(x).
A. -15x - 25 B. 15x + 29 C. -15x + 29 D. -15x + 19
Mathematics
Arrange the group of numbers in order, from least to greatest.8.67, 8
, 8.667, 8
A. 8
, 8
, 8.667, 8.67
B. 8
, 8
, 8.67, 8.667
C. 8
, 8.67, 8.667, 8
D. 8
, 8
, 8.667, 8.67
Mathematics
Graph the linear function. Give the domain and range.f(x) = 
x
A. Domain: (-?, ?)
Range: (-?, ?)
B. Domain: (-?, ?)
Range: (-?, ?)
Mathematics
Solve the problem.Find the smallest positive angle, to the nearest degree, between the lines l1 and l2.l1: 
l2: 
.
A. 173° B. 30° C. 135° D. 45°
Mathematics