Simplify. Assume that each variable is nonnegative.
? 
A. 9
B. 9
C. 9x2
D. 9x
Answer: D
Mathematics
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the acceleration vector.r(t) = (cos 2t)i + (4 sin t)j
A. a = (-4 cos 2t)i + (-16 sin t)j B. a = (-4 cos 2t)i + (-4 sin t)j C. a = (-2 cos 2t)i + (4 sin t)j D. a = (4 cos 2t)i + (-4 sin t)j
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Perform the operation.1110two ÷ 10two
A. 110two B. 101two C. 1110two D. 111two
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Convert the angle from degree measure to radian measure. Round to the nearest hundredth of a radian when appropriate.-490°
A. -
B. -
C. -
D. -
Mathematics
Find the requested polynomial. Find a polynomial function of degree 3 with 2, 2i, -2i as zeros.
A. f(x) = x3 - 2x2 + 4x - 8 B. f(x) = x3 - 2x2 - 4x + 8 C. f(x) = x3 + 2x2 + 4ix + 8i D. f(x) = x3 - 2ix2 + 4x + 8
Mathematics