Write the expression in the standard form a + bi.(8 + 3i)(8 - 3i)
A. 64 - 9i2
B. 64 - 9i
C. 73
D. 55
Answer: C
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Solve for x by writing the equation in exponential form. Round your answer to two decimal places, if necessary.
a. 32.25
b. 11.50
c. –0.50
d. –0.25
e. 46.00
Solve the system of equations.x + 2y + 5z = 19 4y + 5z = 8 z = 4
A. {(5, 4, -3)} B. {(4, -3, 5)} C. {(5, -3, 4)} D. ?
Solve. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.Write the equivalent fraction and percent for 0.04.
A. 
; 0.4%
B. 
; 4%
C. 
; 4%
D. 
; 0.4%
Solve the problem.A bank loaned out $69,000, part of it at the rate of 
per year and the rest at a rate of 
per year. If the interest received was $7480, how much was loaned at 
A. $41,000 B. $40,000 C. $29,000 D. $28,000