Use the given functions to find the requested function.f(x) = 2x + 5, g(x) = 4x2Find (f + g)(x).
A. 8x3 + 20x
B. 
C. 2x + 5 + 4x2
D. 2x + 5 - 4x2
Answer: C
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The graph of a function f is given. Use the graph to answer the question.What is the domain of f?
A. {x|x ? 0} B. {x|-4 ? x ? 5.5} C. all real numbers D. {x|-5 ? x ? 5}
Write the augmented matrix for the system. Do not solve the system. 2x + 3y = 24 4x + 6y = 48
A. 
B. 
C. 
D. 
Find the length of the third side of the right triangle. Assume that c represents the length of the hypotenuse. Give an exact answer and, if appropriate, an approximation to three decimal places.b = 20, c = 25
A. a = 45 B. a = 5 C. a = 15 D. a = 225
Write an algebraic equation and use it to solve the problem.The revenue of Company X triples. Then it increases by $2.4 million to its present revenue of $16.5 What was the original revenue?
A. The original revenue of Company X was $6.3 million. B. The original revenue of Company X was $4.7 million. C. The original revenue of Company X was $14.1 million. D. The original revenue of Company X was $3.1 million.