Find the volume under the surface z = f(x,y) and above the rectangle with the given boundaries.z = x2 + y2; 0 ? x ? 1, 0 ? y ? 1
A. 
B. 
C. 
D. 
Answer: C
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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) = (9 cos t)i + (7 sin t)j
A. a = (9 cos t)i + (7 sin t)j B. a = (-9 cos t)i + (-7 sin t)j C. a = (-9 sin t)i + (-7 cos t)j D. a = (9 sin t)i + (7 cos t)j
Match the vector equation with the correct graph.
r(t) = 2 cos ti + sin tk; 0 ? t ? ?
A. Figure 7 B. Figure 2 C. Figure 4 D. Figure 6
Match the following reasons to complete the proof.
m?3 + m?4 = 180° ________________________
Find all zeros of the function and write the polynomial as a product of linear factors.f(x) = x3 + 7x2 + 9x - 17
A. f(x) = (x - 1)(x + 4 + i)(x - 4 - i)
B. f(x) = (x - 1)(x + 4 + i)(x + 4 - i)
C. f(x) = (x - 1)(x + 4 + i
)(x + 4 - i
)
D. f(x) = (x + 1)(x + 4 + i
)(x - 1 - i
)