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
Mathematics
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
Mathematics
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