Multiply.-2x2(-5x + 4)
A. 10x3 - 8x2
B. 10x3 + 4
C. 2x2
D. 10x - 8
Answer: A
Mathematics
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Solve the problem.Bengisu was pregnant 273 days and 264 days for her first two pregnancies. In order for Bengisu's average pregnancy to equal a national average of 267 days, how long must her third pregnancy last?
A. 268 days B. 242 days C. 264 days D. 269 days
Mathematics
Is ?ABC ~ ?A'B'C' if m?B = m?B', AB= 36, BC= 24, A'B'= 90, and B'C'= 60.
What will be an ideal response?
Mathematics
Verify that the matrix is invertible and find its inverse.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 = 
Mathematics
Suppose that the function with the given graph is not f(x), but f'(x). Find the open intervals where f(x) is increasing or decreasing as indicated. Decreasing
A. (-?, -1), (-1, 2) B. (-1, 2) C. (-?, 2) D. (-?, 2)
Mathematics