Factor the difference of squares.16y4 - 49
A. Prime
B. (4y2 + 7)2
C. (4y2 - 7)2
D. (4y2 + 7)(4y2 - 7)
Answer: D
Mathematics
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Solve the problem.Find the work done by a force of 14i (newtons) in moving an object along a line from the origin to the point 
(distance in meters).
A. -15.63 joules B. 163.3 joules C. 84.00 joules D. 27.21 joules
Mathematics
Solve the equation.15(9c - 3) = 9c - 8
A. 
B. 
C. 
D. 
Mathematics
Compute r, the linear coefficient of correlation, for the given data.Two different tests are designed to measure employee productivity and dexterity. Several employees are randomly selected and tested with these results.
A. 0.115 B. 0.471 C. 0.986 D. -0.280
Mathematics
Find all values of a for which f(a) is the indicated value.f(x) = 
- 
; f(a) = 6
A. 
B. 
C. 
D. 
Mathematics