Evaluate the expression.(30)
A. 2
B. 1
C. 6
D. 0
Answer: B
Mathematics
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Solve the equation. Use the change of base formula to approximate an exact answer to the nearest hundredth when appropriate.2x = 128
A. x = log2128 B. x = 64 C. x = log 128 D. x = log 64
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Find the domain and range of the function.f(x) = -7 cos2 x
A. Domain: (-?, ?); range: [-7, 0] B. Domain: (-?, ?); range: (-?, 0] C. Domain: (-?, 0]; range: (-?, ?) D. Domain: [-7, 0]; range: (-?, ?)
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Solve the problem.The position of an object at time t is given by s(t). Find the instantaneous velocity at the indicated value of t.s(t) = 6 - 14t at t = 6
A. 14 B. -78 C. -14 D. 6
Mathematics