Factor using the trial and error method.15x2 - 8x - 16
A. (15x - 4)(x + 4)
B. (3x + 4)(5x - 4)
C. (3x - 4)(5x + 4)
D. (15x + 4)(x - 4)
Answer: C
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Provide an appropriate response.Solve the system of equations by graphing:2x - y = 53x + 2y = 4
A. 
B. 
C. 
D. 
Use the given vectors to find the indicated expression.v = -5i - 3j - 5k, w = -3i - 5j - 2k, u = -2i + 4j + 2kFind v ? (v × w).
A. -60 B. 0 C. 60 D. 70
Write a word name for the number in the sentence.The volume of water in Lee's bottle is 3.593 liters.
A. Three and five hundred ninety-three thousandths B. Three and five hundred ninety-three tenths C. Three and five hundred ninety-three hundredths D. Three and five hundred ninety-three millionths
Find the largest open intervals where the function is concave upward.f(x) = x3 + 3x2 - 9x + 5
A. None B. (-1, ?), (-?, -1) C. (-?, -1) D. (-1, ?)