Find the value of the improper integral that converges.
dx
A. -4
B. The improper integral diverges.
C. 
D. 0
Answer: D
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Use braces to write the members of the set, or state that the set has no members.The days of the week
A. {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday} B. {Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Sunday} C. {Monday, Tuesday, Wednesday, Thursday, Friday} D. {Saturday, Sunday}
Solve the problem.A box contains 28 widgets, 4 of which are defective. If 4 are sold at random, find the probability that (a) all are defective (b) none are defective.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Find the exact value of the indicated trigonometric function of ?, if ? is an angle in standard position whose terminal side contains the given point.
; find sin ? and cos ?.
A. sin ? = - 
, cos ? = 
B. sin ? = - 
, cos ? = - 
C. sin ? = 
, cos ? = - 
D. sin ? = 
, cos ? = - 
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.
A. 64x69/20 B. 64x21/20 C. 4x21/20 D. 4x69/20