Solve the problem.For what numbers ? is f(?) = csc ? not defined?
A. integral multiples of ? (180°)
B. odd multiples of ? (180°)
C. all real numbers
D. odd multiples of 
(90°)
Answer: A
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Write an equation of the line.
A. y = 
x + 9
B. y = 9x
C. y = 9x + 
D. y = 
x + 9
Perform the indicated row operations on the following matrix. 
(-2)R1 + R2 ? R2
A. 
B. 
C. 
D. 
Find the product.
A. 30x2 - 2x - 
B. 30x2 + 
x - 
C. 30x2 - 
x + 
D. 30x2 + 
x + 
Solve the problem.The function A = 224e0.027t models the population of a particular city, in thousands, t years after 2011. When will the population of the city reach 271 thousand? Is the population increasing or decreasing. Explain.
A. 2017; Decreasing; The growth rate, -0.027, is negative B. 2019; Increasing; The growth rate, 0.027, is positive. C. 2020; Decreasing; The growth rate, -0.027, is negative D. 2018; Increasing; The growth rate, 0.027, is positive.