Multiply and simplify.18 
A. 
B. -162
C. -2
D. 2
Answer: C
Mathematics
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Find the acceleration vector in terms of ur and u?.r = 2 cos 3t and ? = 4t
A. a = (-50 cos 3t)ur + 48 sin 3tu? B. a = (-50 cos 4t)ur - 48 sin 4tu? C. a = (-50 cos 3t)ur - 48 sin 3tu? D. a = (-50 sin 3t)ur - 48 cos 3tu?
Mathematics
Simplify.(-2i)5
A. -32 B. 32i C. 32 D. -32i
Mathematics
Solve the problem.The distance from home plate to dead center field in Sun Devil Stadium is 406 feet. A baseball diamond is a square with a distance from home plate to first base of 90 feet. How far is it from first base to dead center field?
A. 348.2 feet B. 383.5 feet C. 331.1 feet D. 473.9 feet
Mathematics
For the pair of functions, find the indicated domain.f(x) = x2 - 25, g(x) = 2x + 3Find the domain of g ? f.
A. (-?, ?)
B. (-5, 5)
C. 
D. 
? 
Mathematics