Multiply the polynomials. Express the answer as a single polynomial in standard form.(9x - 4y)2
A. 9x2 - 72xy + 16y2
B. 81x2 + 16y2
C. 81x2 - 72xy + 16y2
D. 9x2 + 16y2
Answer: C
Mathematics
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Estimate the value of the quantity.Joe wants to find out how far it is across the lake. His boat has a speedometer but no odometer. The table shows the boats velocity at 10 second intervals. Estimate the distance across the lake using right-end point values.
A. 3,710 ft B. 3,610 ft C. 5,400 ft D. 361 ft
Mathematics
Use the Trapezoidal Rule with n = 4 steps to estimate the integral.
A. 
B. 
C. 
D. 
Mathematics
Find the inverse of the matrix (if it exists).A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 = 
Mathematics
Match the inequality with a graph.2x - 9y ? -2
A. 
B. 
C. 
D. 
Mathematics