Write the complex number in rectangular form.8 cis 135°
A. -4
+ 4i
B. 4
- 4i
C. 8
+ 4i
D. 8
- 4i
Answer: A
Mathematics
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Find the derivative of the function at P0 in the direction of u.f(x, y, z) = -4xy3z2, P0(-4, -64, 16), u = -2i + j - 2k
A. - 
B. - 67,108,864
C. - 83,886,080
D. - 
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Decide whether the statement is true or false.Two lines in the same plane are either parallel or intersecting.
A. True B. False
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Factor the expression completely.
Mv2 + 
Iw2 (energy)
A. 
B. 
C. 
D. Cannot be factored.
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Use the Change-of-Base Formula and a calculator to evaluate the logarithm. Round to four decimal places.log2071
A. 0.7028 B. 1.4229 C. 3.1523 D. 0.5502
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