Perform the indicated operation. Assume that all variables represent nonnegative real numbers.-4
+ 4
A. -1020
B. 12
C. 12m
D. -1020m
Answer: B
Mathematics
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Find the sum.
A. 2915 B. 4,252,986 C. 4,250,070 D. 2917
Mathematics
Convert. When necessary, round the answer to two decimal places.20 yards to feet
A. 720 B. 180 C. 240 D. 60
Mathematics
Find the quotient.-7.52 ÷ -8
A. 109.4 B. 0.94 C. 9.4 D. 10.94
Mathematics
Find all cube roots of the complex number. Leave answers in trigonometric form.2 + 2i
A. 
cis 20°, 
cis 140°, 
cis 260°
B. 
cis 20°, 
cis 140°, 
cis 260°
C. 
cis 30°, 
cis 150°, 
cis 270°
D. 
cis 20°, 
cis 140°, 
cis 260°
Mathematics