Factor the expression completely, if possible.16y4 - 40y3 + 25y2
A. (4y2 - 5y)2
B. y2(4y - 5)(4y + 5)
C. y2(4y + 5)2
D. y2(4y - 5)2
Answer: D
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Find the formula and limit as requested.For the function f(x) = 10 - 3x2 , find a formula for the lower sum obtained by dividing the interval [0, 1] into n equal subintervals. Then take the limit as n?? to calculate the area under the curve over [0, 1].
A. 10 - 
; Area = 9
B. 10 - 
; Area = 9
C. 10 + 
; Area = 11
D. 
; Area = 1
Express the repeating decimal number as a quotient of two integers.0.9
A. 
B. 
C. 
D. 
Go through the Babylonian algorithm two times to approximate the given square root. Give four decimal places in your answer.
A. 4.3581 B. 4.3597 C. 4.3315 D. 4.3589
Fill in the blank with one of the words or phrases listed below. Not all choices will be used.
If 
= 
, then ad and bc are called 
.
A. least common denominator B. complex fraction C. reciprocals D. cross products