Find the integral.
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Answer: B
Mathematics
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Evaluate the expression.71
A. 7
B. 1
C. -7
D. 
Mathematics
All references are to the figure below. The distance between A and D is a, and the distance between D and C is x. 
Assuming that A = 36°, ?BDC = 42°, and c2 = 21, find h, x, and a.
A. h ? 12.3, x ? 13.7, a ? 3.3 B. h ? 14.1, x ? 15.6, a ? 3.7 C. h ? 12, x ? 14, a ? 3.3 D. h ? 14, x ? 16, a ? 3.7
Mathematics
Find the product. Simplify before performing the multiplication.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500
Mathematics