Simplify the expression.-4y + 2 - 1 + 6 + y - 7
A. -3y
B. -5y
C. -5y + 1
D. -3y - 1
Answer: A
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Solve the problem.A glide reflection is defined by the given slide arrow and the line of reflection m. Find the image of the given figure under this glide reflection.
A. 
B. 
C. 
D. 
A population growing at an annual rate r will triple in a time t given by the formula 
. If the growth rate remains constant and equals 9% per year, how long will it take the population of the town to triple?
?
A. 2.2 years B. 5.3 years C. 6.6 years D. 1 years E. 12.2 years
Solve the problem.A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 198 feet and a maximum height of 30 feet. Find the height of the arch at 20 feet from its center.
A. 4.9 ft B. 0.3 ft C. 44 ft D. 28.8 ft
Differentiate.f(x) = 93x
A. (9 ln 3)93x B. (ln 9) 93x C. (3ln 9 )93x D. (3) 93x