Factor completely, or state that the polynomial is prime.2x3 - 72a2x + 28x2 + 98x
A. 2x(x + 7 + 6a)(x - 7 - 6a)
B. 2x(x + 7 + 6a)(x - 7 + 6a)
C. 2x(x + 7 + 6a)(x + 7 - 6a)
D. prime
Answer: C
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Find the number of molecules in the given quantity of a compound whose molar mass is given. Express your answer in scientific notation, rounding the decimal part to the nearest hundredth.50 grams of carbon monoxide (CO); molar mass: 28.01 grams
A. 8.43 × 1026 molecules B. 1.07 × 1024 molecules C. 8.43 × 1027 molecules D. 1.07 × 1023 molecules
The function 
satisfies the equation of change 
. For what values of f is the graph of f versusx increasing? Round your answer to two decimal places, if necessary.
?
A. 
B. 
C. ?
D. 
Solve. Give your answer as a mixed numeral.The floor of a rectangular room is to be tiled with 
foot square tiles along a 12
foot wall. How many tiles will be needed along the wall?
A. 36
tiles
B. 37
tiles
C. 39 tiles
D. 4
tiles
Find the domain of the given function.f(x) = 
A. [8, ?) B. (-?, 8) ? (8, ?) C. (-8, ?) D. (-?, ?)