Factor completely.(m + n)b2 + (m + n)b + 15(m + n)
A. (m + n)(b2 - b + 15)
B. (m + n)(b + 15)(b - 15)
C. (m + n)(b2 + b + 15)
D. b(m + n)(b + 16)
Answer: C
Mathematics
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Find the curvature ? for the given function.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. ? = 
B. ? = 
C. ? = 
D. ? = 
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Solve the problem. Round your answer to the nearest tenth, when appropriate.The position of an object moving in a straight line is given by s(t) = t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long will it take the object to move 
?
A. 9.7 sec B. 12.8 sec C. 17.0 sec D. 9.5 sec
Mathematics
Write in exponent form.9
A. 1 ? 9 B. 91 C. 92 D. 19
Mathematics
Solve the problem.Steve drove 6 km and cycled 655 m. How many meters did he travel in total?
A. 6655 m B. 65,506 m C. 655.006 m D. 6556 m
Mathematics