Factor completely. If the polynomial is prime, so state.20x2y2 + 41xy2 + 20y2
A. y2(x + 4)(20x + 5)
B. (5x + 4y)(4x + 5y)
C. (4x + 4y)(5x + 5y)
D. y2(5x + 4)(4x + 5)
Answer: D
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Find the exact value of x.cot-1 x = cos-1 
A. 
B. 
C. 
D. 
Explain how to obtain the graph of the given quadratic function from the graph of 
f(x) = 5(x - 3)2
A. Take the graph of y = x2 and shift it 3 units to the left and vertically stretch it by a factor of 5 B. Take the graph of y = x2 and shift it 3 units to the right and vertically compress it by a factor of 5 C. Take the graph of y = x2 and shift it 3 units to the left and vertically compress it by a factor of 5 D. Take the graph of y = x2 and shift it 3 units to the right and vertically stretch it by a factor of 5
Solve the problem.For the equation y = - 
cos(2x - 2?), identify (i) the amplitude, (ii) the phase shift, and (iii) the period.
A.
(i)  | (ii)  | (iii) ? |
B.
(i)  | (ii) ? | (iii) ? |
C.
| (i) 2 | (ii) 2? | (iii) 2? |
D.
| (i) 2 | (ii) ? | (iii) ? |
Write a word name for the decimal.0.093
A. Ninety-three hundredths B. Ninety-three hundred-thousandths C. Ninety-three ten-thousandths D. Ninety-three thousandths