Factor completely. If unfactorable, indicate that the polynomial is prime.49 - (x + 4y)2
A. (7 + x + y)(7 - x - y)
B. (7 + x + 4y)(7 - x - 4y)
C. (7 + 4xy)(7 - 4xy)
D. (7 + x - 4y)(7 - x - 4y)
Answer: B
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Write the equation of a line in slope-intercept form with the given slope that passes through the given point.m = 
; (0, 5)
A. y = - 
x + 
B. y = 
x + 5
C. y = - 
x + 5
D. y = 
x - 
Solve the application and answer with a complete sentence.On Monday morning at opening time, a store had 
of brown rice in stock. If they sold 
of rice on Monday, how many pounds of brown rice did they have when they closed on Monday evening?
A. They had 10
pounds of brown rice.
B. They had 9
pounds of brown rice.
C. They had 10
pounds of brown rice.
D. They had 9
pounds of brown rice.
Use calculus to find any critical points and inflection points of the given function. Then determine the concavity of the function and the intervals over which it is increasing/decreasing.f(x) = 7 ( 1 - e-x) for nonnegative values of x
A. Critical points: none Inflection points: none Concavity: concave up for all x ? 0 Decreasing: decreasing for all x ? 0 B. Critical points: none Inflection points: none Concavity: concave up for all x ? 0 Increasing: increasing for all x ? 0 C. Critical points: none Inflection points: none Concavity: concave down for all x ? 0 Increasing: increasing for all x ? 0 D. Critical points: none Inflection points: none Concavity: concave down for all x ? 0 Decreasing: decreasing for all x ? 0
A variable x has a binomial distribution with probability of success 0.65 for each trial. For a total of 50 trials, what are the mean and the standard deviation of the distribution? ?
A. 
?
B.
?
C.
?
D.
?
E.
?