Find the product or quotient, using trigonometric form. Write the answer in the form a + bi.(8 - 4i)(5 + 8i)
A. 72 - 44i
B. -32i2 + 44i + 40
C. 72 + 44i
D. 8 - 84i
Answer: C
Mathematics
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Convert to scientific notation.0.000082618
A. 8.2618 × 105 B. 8.2618 × 10-4 C. 8.2618 × 104 D. 8.2618 × 10-5
Mathematics
Solve the problem. Round to the nearest tenth.A comet follows the hyperbolic path described by 
- 
= 1, where x and y are in millions. If the sun is the focus of the path, how close to the sun is the vertex of the path?
A. 4.8 million B. 3.9 million C. 0.5 million D. 19 million
Mathematics
Find the slope and y-intercept of the line.-5x + 7y = 2
A. slope = 
; y-intercept = - 
B. slope = 5; y-intercept = 13
C. slope = 
; y-intercept = 
D. slope = 
; y-intercept = 
Mathematics
Perform the exponentiation.(-5)3
A. 15 B. 125 C. -15 D. -125
Mathematics