Simplify the expression. Assume that variables represent nonzero numbers.(-5x3y5)2
A. 25x6y10
B. 25x9y25
C. -25x6y10
D. -10x6y10
Answer: A
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Provide an appropriate response.A triangular city block is 360 ft on one side and 375 ft on the second side. What is the area of the block?
Fill in the blank(s) with the appropriate word(s).
Write an expression to state the problem and simplify.An investor buys 90 shares of stock for d dollars per share. The next day two other investors each buy the same number of shares, but the price has risen by $5 per share. How much have the three investors spent?
A. 90d + 90(d + 5); 180d + 450 dollars B. 90d + 2 ? 90d + 10; 270d + 10 dollars C. 90d + 2 ? 90(d + 5); 270d + 900 dollars D. Cannot be solved
Solve the nonlinear system of equations. x2 - 3y2 = 14x2 + 3y2 = 19
A. {(2, 1), (-2, -1)} B. {(-1, 2), (1, -2)} C. {(1, 2), (-1, 2), (1, -2), (-1, -2)} D. {(2, 1), (2, -1), (-2, 1), (-2, -1)}
Find the matrix product, if possible.
A. 
B. 
C. 
D. Does not exist