Factor the GCF out of the given expression.5x2 + 15x
A. 5x(x + 15)
B. x(5x + 15)
C. 5x2(x + 3)
D. 5x(x + 3)
Answer: D
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Identify the type of surface represented by the given equation.
+ 
= 
A. Ellipsoid B. Paraboloid C. Hyperbolic paraboloid D. Elliptical cone
Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.The Wellspring Company's fleet of trucks get 20, 13, 19, 14, 20, 13, and 21 miles per gallon. What is the mean miles per gallon for the fleet? Round to the nearest whole number.
A. 16 miles per gallon B. 18 miles per gallon C. 20 miles per gallon D. 17 miles per gallon
Name the property that justifies the statement. All variables represent real numbers.(14 + f) + 15.7 = 14 + (f + 15.7)
A. Commutative property of addition B. Inverse property of addition C. Associative property of addition D. Distributive property of multiplication over addition
Use a sum-to-product identity to rewrite the expression.sin (7t + 8) + sin (2t + 4)
A. 2cos 
cos 
B. 2cos 
sin 
C. 2sin 
cos 
D. 2sin 
sin 