Find an explicit rule for the nth term of the sequence.-2, -8, -32, -128, ...
A. an = -2 ? 4n
B. an = 4? -2n
C. an = -2 ? 4n-1
D. an = 4? -2n+1
Answer: C
Mathematics
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Solve the problem. Round your answer to the nearest tenth, if necessary.A jet plane traveling at a constant speed goes 1200 mi with the wind, then turns around and travels for 1000 mi against the wind. If the speed of the wind is a constant 50 mph, and the total flight took 4 hours, find the speed of the plane.
A. 550 mph B. 435 mph C. 525 mph D. 605 mph
Mathematics
Provide an appropriate response.True or false? 
? 
= 
A. True B. False
Mathematics
Simplify the following by combining like terms.-9m4 - 8m4
A. -68m B. -17m4 C. -17m8 D. cannot be simplified
Mathematics
Solve.2x + 3 = 15
A. 10 B. 4 C. 14 D. 6
Mathematics