Determine whether the sequence is arithmetic.
, - 
, - 
, - 
, . . .
A. Arithmetic
B. Not arithmetic
Answer: A
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Factor out the greatest common factor. Simplify the factors, if possible.8x7y9 + 28x2y7 + 28x4y5
A. 4x2(2x5y9 + 7y7 + 7x2y5) B. 4x2y5(2x5y4 + 7y2 + 7x2) C. 4(2x7y9 + 7x2y7 + 7x4y5) D. x2y5(8x5y4 + 28y2 + 28x2)
Find the appropriate linear cost or revenue function.An electrician charges a fee of $45 plus $30 per hour. Let C(x) be the cost in dollars of using the electrician for x hours. Find the linear cost function.
A. C(x) = 45x + 30 B. C(x) = 30x - 45 C. C(x) = 30x + 45 D. C(x) = 45x - 30
Find the root.
A. Not real number B. 27 C. 9 D. 81
Write the English phrase as an algebraic expression. Let the variable x represent the number.eight more than the quotient of a number and 10
A. 
+ 8
B. 
+ 8
C. 10x - 8
D. 10x + 8