Round as indicated.66.6 to the nearest ten
A. 69
B. 71
C. 70
Answer: C
Mathematics
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Factor the polynomial completely.15x2 + 4xy - 4y2
A. (15x + 2y)(x - 2y) B. (3x + 2y)(5x - 2y) C. (3x - 2y)(5x + 2y) D. prime
Mathematics
Add a constant term to the expression to make it a perfect square.x2 + 18x
A. 18 B. 81 C. 9 D. 324
Mathematics
Decide whether the problem is an equation or an expression.x + y = 4
A. Equation B. Expression
Mathematics
Solve the system of equations by the substitution method. x - 3y = -30-5x - 4y = -2
A. {(-7, 9)} B. {(6, 9)} C. {(-6, 8)} D. ?
Mathematics