Simplify the trigonometric expression by following the indicated direction.Factor and simplify: 
What will be an ideal response?
Mathematics
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Solve the problem.The table shows the population of a city over the past five years. 
We used this data to develop the quadratic function 
, which models the population of the city y in millions in the year x. Use the model to find the estimated population in year 9.
A. 66,822,000 B. 1,490,000,000,000 C. 1,490,000 D. 65,538,000
Mathematics
Solve.-8x + 18 - 5x = -6x + 53
A. 5
B. - 5
C. - 
D. - 
Mathematics
Solve the problem.Determine whether the ordered triple (-3, -1, 4) is a solution of the system of equations.2x - 2y - 3z = -164x - 3y + 3z = 3 x + y - 5z = -24
A. No B. Yes
Mathematics
Multiply and, if possible, simplify.
? 
A. 21xy
B. 2
C. 21
D. 2xy
Mathematics