Perform the operation using trigonometric form. Write the answer in the form a + bi(5 + 6i)(7 + 8i)

A. 48i2 + 82i + 35
B. -13 - 82i
C. -13 + 82i
D. 83 + 2i


Answer: C

Mathematics

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Provide an appropriate response.Ellen's health plan has a $10.00 copayment for complete pregnancy care. Let x represent the number of prenatal visits and y represent her cost for the pregnancy. Write an equation which represents the relationship between her cost for the pregnancy and her number of prenatal visits; describe the graph of this equation, and identify the intercepts.

What will be an ideal response?

Mathematics

Find the indicated term of the arithmetic sequence.5.9, 5.6, 5.3, . . . ;9th term

A. 3.2 B. 3.5 C. 3.51 D. 3.8

Mathematics

Write an equivalent expression without negative exponents and, if possible, simplify.

A. x3y2
B.
C.
D.

Mathematics

Find the product.(8y - 3)(64y2 + 24y + 9)

A. 512y3 + 72y2 - 27 B. 512y3 + 27 C. 512y3 - 27 D. 64y3 + 27

Mathematics