Find the slope of the tangent line at the given value of the independent variable.f(x) = 9x + 
, x = 2
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.How many posts does it take to support a fence around a square field that measures 135 yards on a side if posts are placed every 15 yards?
A. 10 B. 40 C. 37 D. 36
Use the distributive property to rewrite the expression. Simplify if possible.6x + 6z
A. 6(x + z) B. 12(x + z) C. 6(xz) D. 36(x + z)
Use the square root property to solve the equation.(x + 3)2 = 14
A. {3 - 
, 3 + 
}
B. {-3 - 
, -3 + 
}
C. {- 
, 
}
D. {11}
Solve the problem using two linear equations in two variables and Cramer's rule.Two different gasohol mixtures are available. One contains 5% alcohol and the other 12% alcohol. How much of each should be mixed to obtain 1500 gal of gasohol containing 10% alcohol? (Round to the nearest whole gallon.)
A. 625 gal 5%, 875 gal 12% B. 75 gal 5%, 180 gal 12% C. 1071 gal 5%, 1071 gal 12% D. 429 gal 5%, 1071 gal 12%