Use the distributive property to simplify.5(y + 4) + 3
A. 5y + 20 + 3
B. 5y + 7
C. 5y + 17
D. 5y + 23
Answer: D
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The point in a lunar orbit nearest the surface of the moon is called perilune and the point farthest from the surface is called apolune. The Apollo 11 spacecraft was placed in an elliptical lunar orbit with perilune altitude 106 km and apolune altitude 318 km (above the moon). Find an equation of this ellipse if the radius of the moon is 1728 km and the center of the moon is at one focus.
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Solve.Last year, Sam's average telephone bill was $179.83. Last month, his telephone bill was $220.69. How much above last year's average was last month's bill?
A. $41.86 B. $30.86 C. $40.86 D. $40.96
Use synthetic division to determine whether x - c is a factor of the given polynomial.2x3 - 15x2 + 33x - 20; x - 5
A. Yes B. No
Use mathematical induction to prove that for all integers n ? 0, 8^n ? 1 is divisible by 7.
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