Solve the equation.7x + 7 = 2 - 2x
A. - 
B. 1
C. 
D. - 1
Answer: A
Mathematics
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Find the largest open interval where the function is changing as requested.Decreasing f(x) = ?x - 8?
A. (-8, ?) B. (8, ?) C. (-?, 8) D. (-?, -8)
Mathematics
Find the maximum and minimum values of the function and the values of x and y for which they occur.P = 6x + 7y, subject to2x + 3y ? 12,2x + y ? 8,x ? 0,y ? 0.
A. Maximum: 24 when x = 4 and y = 0; minimum: 0 when x = 0 and y = 0 B. Maximum: 32 when x = 3 and y = 2; minimum: 0 when x = 0 and y = 0 C. Maximum: 28 when x = 0 and y = 4; minimum: 0 when x = 0 and y = 0 D. Maximum: 28 when x = 0 and y = 4; minimum: 24 when x = 4 and y = 0
Mathematics
Use a calculator to evaluate the expression. 
A. 23,940 B. 35,910 C. 5985 D. 143,640
Mathematics
Solve the equation.2(7 - 3x) = 
A. {3}
B. {1}
C. 
D. {-3}
Mathematics