Divide.(1 - 3i) ÷ (5 - 7i)

A. -  - i
B.  - i
C. -  + i
D.  - i


Answer: D

Mathematics

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Find the volume of the indicated region.the region bounded by the cylinders   and the planes  

A. 56? B. 28? C. 112? D. 84?

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In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.a = 5 yd, b = 5 yd

A. c ? 7.1 yd B. c ? 3.2 yd C. c ? 5.1 yd D. c = 5 yd

Mathematics

Translate the problem situation to a system of equations. Do not solve.The sum of two numbers is 9. Five times the smaller number minus twice the larger number is 17. What are the numbers?

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Mathematics

Evaluate the algebraic expression.(x + 5)(y + 5)when x = -2 and y = 3

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Mathematics