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
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Graph the solution set on a number line.{x|x ? 3}
A. 
B. 
C. 
D. 
Find the indicated series by the given operation.Show that by differentiating term by term the expansion of 
the result is the expansion for 
A. 
(1 + 2x - 3x2 + 4x3 - . . .) = -2(1 + 3x - 6x2 + . . . )
B. 
(2x + 3x2 - 4x3 + . . .) = -2(1 - 3x + 6x2 - . . .)
C. 
(1 - 4x + 6x2 - 8x3 + . . .) = -2( 2 - 6x + 12x2 - . . .)
D. 
(1 - 2x + 3x2 - 4x3 + . . .) = -2(1 - 3x + 6x2 - . . .)
Solve the problem.A parallelogram has a base of length x + 7 and a height of x + 2 and has an area of 50 square units. Find the base and height of the parallelogram. (A = bh)
A. height = 2 units; base = 25 units B. height = 5 units; base = 10 units C. height = 1 unit; base = 50 units D. height = 6.25 units; base = 8 units
Multiply.18.53 × 0.0066
A. 0.132298 B. 0.122298 C. 0.112298 D. 0.222298