Evaluate.-92
A. 81
B. -81
C. -18
D. -729
Answer: B
Mathematics
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Find the limit.
(x3 + 5x2 - 7x + 1)
A. 0 B. 29 C. 15 D. does not exist
Mathematics
Simplify. Write the answer with positive exponents.
-5
A. 
B. 
C. x30y25w5z30
D. 
Mathematics
Find the perimeter of the figure.Parallelogram
A. 176 m B. 137 m C. 127 m D. 88 m
Mathematics
Solve the problem.Tides go up and down in a 13.2-hour period. The average depth of a certain river is 7 m and ranges from 3 to 11 m. The variation can be approximated by a sine curve. Write an equation of the form
that gives the approximate variation y, if x is the number of hours after midnight and high tide occurs at 5:00 am.
A. y = 7 sin 
B. y = 4 sin 
C. y = 4 sin 
D. y = 7 sin 
Mathematics