Find the expected value for the random variable.A business bureau gets complaints as shown in the following table. Find the expected number of complaints per day. 
A. 3.01
B. 2.98
C. 2.85
D. 2.73
Answer: B
Mathematics
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Find the indicated trigonometric function of ?.
Find sin B and tan B.
A. sin B = 
; tan B = 
B. sin B = 
; tan B = 
C. sin B = 
; tan B = 
D. sin B = 
; tan B = 
Mathematics
Use a differential to approximate the quantity.
?
?
Round the result to the nearest thousandth, if necessary.
?
__________
Fill in the blank(s) with the appropriate word(s).
Mathematics
Express as a sum of logarithms.log6xy
A. log6x - log6y B. log6x + log6y C. log3x + log3y D. log3x - log3y
Mathematics
Factor, using the given factor. Assume all variables represent positive real numbers.(x - 8)-3/2 - (x - 8)-1/2 + (x - 8)1/2; (x - 8)-3/2
A. (x - 8)-3/2(x2 - 17x - 65) B. (x - 8)3/2(x2 + 16x - 73) C. (x - 8)-3/2(x2 + 17x - 73) D. (x - 8)-3/2(x2 - 17x + 73)
Mathematics