Determine whether the relation is a function.{(-6, -3), (-2, 3), (-1, -8), (-1, 8)}

A. Function
B. Not a function


Answer: B

Mathematics

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Solve the problem.The annual precipitation for one city is normally distributed with a mean of 319 inches and a standard deviation of 3.4 inches. Fill in the blanks.In 95% of years, precipitation in this city is between  and  inches.

A. 319, 325.8 B. 308.8, 329.2 C. 312.2, 325.8 D. 308.8, 319

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Multiply.(x - 11)(x2 + 5x - 2)

A. x3 - 6x2 - 53x - 22 B. x3 - 6x2 - 57x + 22 C. x3 + 16x2 + 53x - 22 D. x3 + 16x2 + 57x + 22

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Write as a single logarithm. log7 x + log7 y

A. log7 
B. log7 
C. log7 
D. log7 y

Mathematics

Solve.A $270 lamp is on sale at 25% off. What is the discount?

A. $202.50 B. $6.75 C. $67.50 D. $263.25

Mathematics