Add.2a4 + 9a2
A. 9a8 + 6a4
B. 9a4 + 6a2
C. 15a6
D. 15a12
Answer: B
Mathematics
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Multiply.(-4)(-4)(-4)
A. -54 B. -74 C. -64 D. 64
Mathematics
Provide an appropriate response.Evaluate the function f(x) = 2x + 1 for x = 5.
A. 36 B. 33 C. 64 D. 12
Mathematics
Solve the problem.A coin is tossed upward from a balcony 200 feet high with an initial velocity of 48 feet per second, then its height after t seconds is given by the equation 
During what interval of time will the coin be at a height of at least 
A. 0 ? t ? 5 B. 5 ? t ? 10 C. 0 ? t ? 1 D. 4 ? t ? 5
Mathematics
Decide whether the expression is or is not an identity.
= sin x
A. Not an identity B. Identity
Mathematics