Solve the equation.4(5 + 3x) = 
A. 
B. {-3}
C. {128}
D. {3}
Answer: B
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Give an appropriate answer.Express the following in subscript notation.(a) 
(b) 
(c) 
A. (a) fxyyy, (b) fxxy, (c) fxy B. (a) fyxxxx, (b) fyyyx, (c) fxxyy C. (a) fxy4, (b) fx3y, (c) fx2y2 D. (a) fxyyyy, (b) fxxxy, (c) fxxyy
Use "intersect" on a graphing calculator to solve the equation. Round the solution to the fourth decimal place.5
x = 3x
A. 0.8982 B. 0.8958 C. 2.6827 D. 2.6873
Solve the problem. Round the answer to the nearest tenth, if necessary.A painter leans a ladder against one wall of a house. The ladder is 26 ft long. The base of the ladder is 19 ft from the house. How high is the wall of the house?
A. 157.5 ft B. 17.7 ft C. 8.85 ft D. 22.5 ft
Find the vertex and axis of symmetry of the graph of the function.f(x) = x2 + 6x
A. (9, -3); x = 9 B. (3, -9); x = 3 C. (-9, 3); x = -9 D. (-3, -9); x = -3