Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. x + 4
C. 
D. 
Answer: C
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Find the real solutions of the equation by factoring.15x3 + 90x2 + 120x = 0
A. {-2, -4}
B. {0, -2, -4}
C. {- 
, -4}
D. {0, 2, 4}
Solve the following quadratic application by factoring.If an object is thrown upward with an initial velocity of 
, its height after t sec is given by 
. How high is the object after 0.5 sec? At what time will the object hit the ground? (Hint: The height is 0 on the ground.)
A. The object will be 4 ft high after 0.5 sec.; The object will hit the ground after 1 sec. B. The object will be -12 ft high after 0.5 sec.; The object will hit the ground after 9.5 sec. C. The object will be 0 ft high after 0.5 sec.; The object will hit the ground after 11 sec. D. The object will be 16 ft high after 0.5 sec.; The object will hit the ground after 9.5 sec.
Find the domain of the rational function.f(x) = 
A. all real numbers except 9, 3, 
B. all real numbers except -9, 3
C. all real numbers except 9, 3
D. all real numbers except -9, 3, 
A die is rolled twice. Write the indicated event in set notation.The first roll is a 6 and so is the second.
A. {(6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)} B. (1, 6), (2, 6), (3, 6), (4, 6), (5, 6), (6, 6)} C. {(6, 6), (1, 6), (6, 1), (6, 5), (5, 6)} D. {(6, 6)}