Solve the initial value problem for y as a function of x.(x2 + 81) 2 
= 
, y(0) = 9
A. y = 
+ 9
B. y = 
+ 9
C. y = 
+ 9
D. y = 
Answer: B
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Factor completely using the grouping method to factor trinomials. If unfactorable, indicate that the polynomial is prime.15x2y2 + 22xy2 + 8y2
A. (3x + 4y)(5x + 2y) B. y2(5x + 4)(3x + 2) C. (5x + 4y)(3x + 2y) D. y2(x + 4)(15x + 2)
Write the standard form of the whole number that is expressed in word form in the sentence.A certain exotic sportscar costs three hundred twelve thousand, 
ninety-seven dollars.
A. 312,297 B. 312,297,000 C. 31,227 D. 3,202,970
Use the power rules for exponents to simplify. Write the answer in exponential form.(2x3y2)3
A. 8x6y5 B. 8x9y6 C. 2x6y5 D. 2x9y6
Add or subtract the functions, as indicated.P(x) = 7x6 + 2x4 + 20, Q(x) = 5x6 - 3x4 - 19, R(x) = x7 + 15; Find (P - Q + R)(x).
A. x7 + 2x6 + 7x4 + 16 B. 61x10 C. x7 + 2x6 + 5x4 + 54 D. x7 + 2x6 + 5x4 + 16