Factor by grouping.20x2 - 12xy - 25xy + 15y2
A. (20x - 5y)(x - 3y)
B. (4x - 5)(5x - 3)
C. (4x + 5y)(5x - 3y)
D. (4x - 5y)(5x - 3y)
Answer: D
Mathematics
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Solve the problem.The demand equation for a certain product is 6p2 + q2 = 1500, where p is the price per unit in dollars and q is the number of units demanded. Find dq/dp.
A. dq/dp = -p/6q B. dq/dp = -6q/p C. dq/dp = -6p/q D. dq/dp = -q/6p
Mathematics
Solve the inequality.70(x2 - 1) > 51x
A. 
or 
B. 
or 
C. 
D. 
Mathematics
Use the roster method to write the given set of numbers. Interpret "between a and b to include both a and b."The whole numbers between -2 and 3
A. {1, 2, 3} B. {0, 1, 2} C. {-2, ..., 1, 2, 3} D. {0, 1, 2, 3}
Mathematics
Combine. Simplify the answer.
- 
A. 
B. 
C. 
D. 
Mathematics