Factor by grouping.4yx + 7x + 16y + 28
A. (y + 7)(4x + 4)
B. (4y + 7)(x + 4)
C. (4y + 4)(x + 7)
D. (4y + 1)(x + 28)
Answer: B
Mathematics
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The following table shows the miles M from home after h hours of driving. Find a linear model for miles from home as a function of hours driven. Round the slope to three decimal places, if necessary. h 1 2.58 4.16 5.74 M 668 582.38 496.76 411.14?
A. 
B. ?
C. ?
D. ?
Mathematics
The slope of a line is given. Determine the slope of the line perpendicular to the line whose slope is given.m = - 
A. m = - 
B. m = - 
C. m = 
D. m = 
Mathematics
Simplify using the quotient-to-power rule.
3
A. 
B. 
C. 
D. 
Mathematics
The graph of a function f is given. Use the graph to answer the question.Is f(40) positive or negative?
A. positive B. negative
Mathematics