Solve the problem.An airplane is cruising at an altitude of 31,680 ft. What is the plane's altitude in miles?
A. 6 mi
B. 5 mi
C. 7 mi
D. 12 mi
Answer: A
Mathematics
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Solve the problem.Find the length of the curve y = ln(csc x), ?/4 ? x ? ?/2
A. ln(
)
B. ln(
+ 1)
C. ln(2
)
D. 1 - ln(
+ 1)
Mathematics
Factor completely.12m2n + 24m2 - 4mn - 8m
A. 4m(3m + 1)(n - 2) B. (3m - 1)(n + 2) C. 4m(3m - 1)(n + 2) D. m(3m - 1)(n - 2)
Mathematics
Solve the system by the substitution method.
A. (24, 7), (24, -7) B. (-25, 0), (24, 7), (24, -7) C. (-25, 0), (24, 49), (24, -49) D. ?
Mathematics
Factor.8x9 + 27y12
A. ( 2x3 + 3y4)(4x6 - 6x3y4 + 9y8) B. ( 2x3 - 3y4)( 2x3 + 3y4) C. ( 2x3 + 3y4)(4x6 + 6x3y4 + 9y8) D. ( 2x3 - 3y4)(4x2 + 6x3y4 + 9y8b2)
Mathematics