Perform the indicated operations.(12x4y2 - 7x2y2 + 5xy) + (11x4y2 - 8x2y2 + 10xy)

A. 23x4y2 + 15x2y2 + 15xy
B. 15x4y2 - 23x2y2 + 15xy
C. 23x4y2 - 15x2y2 + 15xy
D. -15x4y2 + 23x2y2 + 15xy

Answer: C

Mathematics

You might also like to view...

Solve the problem.How many three-digit numbers have the sum of their digits equal to 20?

A. 32 B. 36 C. 40 D. 30

View
Mathematics

If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.IV, 

A. Negative B. Positive

View
Mathematics

Find the average of the list of numbers.380, 806, 771, 827

A. 746 B. 596 C. 696 D. 720

View
Mathematics

Determine whether the given value is a solution of the equation.y = 4, 5y + 5(y - 3) = 25

A. Yes B. No

View
Mathematics