Write the complex number in rectangular form.8(cos 30° + i sin 30°)
A. 4
+ 4i
B. 
+ 
i
C. 4 + 4
i
D. 
+ 
i
Answer: A
Mathematics
You might also like to view...
Multiply and simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve problems using a calculator.A painter charges $150 for two rooms and $260 for four rooms. Suppose a two-room job required painting 1152 square feet and a four-room job required painting 2950 square feet. Calculate the difference in cost per square foot between these two jobs. (Round to the nearest tenth of a cent, if necessary.)
A. $0.02 per square foot B. $0.04 per square foot C. $0.01 per square foot D. $0.03 per square foot
Mathematics
Solve.
> 0
A. (-4, ?), or {x
x > -4}
B. [-4, ?), or {x
x ? -4}
C. (4, ?), or {x
x > 4}
D. (-?, -4), or {x
x < -4}
Mathematics
Write the percent as a decimal.350%
A. 0.35 B. 3.51 C. 35 D. 3.5
Mathematics