Factor completely. State that the polynomial is prime if it cannot be factored.9x2 + 6x + 1
A. (3x + 1)(3x - 1)
B. (3x + 1)2
C. (3x - 1)2
D. Prime
Answer: B
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Factor out the common binomial factor as the GCF.(x + 2)(4x + 7) + (x + 2)(9x - 11)
A. (x + 2)(13x - 4) B. (x + 2)(13x + 4) C. (x + 2)(9x + 4) D. (x + 2)(9x - 4)
If M is the theoretical maximum charge that a battery can hold and k is a positive constant that depends on the battery and the charger, the length of time (in minutes) required to charge the battery to a given level C is given by
?
.
?
If 
, how long will it take a battery to reach a 60% charge? Assume that the battery was fully discharged when it began charging.
?
Please enter your answer as a number without the units, rounded to one decimal place.
Fill in the blank(s) with the appropriate word(s).
Change the number 
to base ten.
?
A. 15.75 B. 18.47 C. 14.52 D. 16.86 E. 31.5
Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 6 sin ?
A. 
x2 + (y - 3)2 = 9; circle, radius 3,
center at (0, 3) in rectangular coordinates
B. 
x2 + (y + 3)2 = 9; circle, radius 3,
center at (0, -3) in rectangular coordinates
C. 
(x + 3)2 + y2 = 9; circle, radius 3,
center at (-3, 0) in rectangular coordinates
D. 
(x - 3)2 + y2 = 9; circle, radius 3,
center at (3, 0) in rectangular coordinates