Solve the system of equations by substitution. 9x + y = 0-9x + y = -18
A. (-1, 9)
B. (-1, -9)
C. (1, -9)
D. (1, 18)
Answer: C
Mathematics
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Write the phrase as an algebraic expression and simplify if possible. Let x represent the unknown number.The quotient of 33 and the product of a number and -5.
A. 
- 5
B. -165x
C. 
D. 
Mathematics
Factor the expression by removing the greatest common factor.10x7 + 10x
A. 10(x7 + x) B. 10x(x6 + 1) C. 10x(x6) D. 10(x8 + 1)
Mathematics
Express the number in terms of powers of the numbers in the expression.2 ? 3 ? 2
A. 22 ? 3 B. 2 ? 32 C. 2(2) ? 3 D. 2 ? 3
Mathematics
Find the indicated function value for the function.f(x) = {
f(0)
A. 9 B. 4 C. 2 D. -3
Mathematics