Evaluate the expression, if possible.
A. 16
B. - 
C. -16
D. 
Answer: A
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Provide an appropriate response.
Find b rounded to four significant digits if a = 0.198 mm and B = 62°.
A. 0.09296 mm B. 0.1748 mm C. 0.3724 mm D. 0.1053 mm
Find the product. Write the product in rectangular form, using exact values.[8 cis 240°] [6 cis 330°]
A. 24i
B. -12 + 12
i
C. 24
D. -24
- 24i
Write a word name for the number in the sentence.When Sam joined his software company, their stock sold for $37.84 per share.
A. Thirty-seven and eighty-four thousandths B. Thirty-seven and eighty-four tenths C. Thirty-seven and eighty-four hundredths D. Thirty-seven and eighty-four millionths
Find the foci and vertices of the ellipse.
+ 
= 1
A. foci at (- 
, 0) and (
, 0)
vertices at (-7, 0), (7, 0)
B. foci at (0, 7) and (4, 0)
vertices at (0, 49), (16, 0)
C. foci at (0, - 
) and (0, 
)
vertices at (0, -7), (0, 7)
D. foci at (0, -7) and (0, 7)
vertices at (0, -49), (0, 49)