Solve the problem.Given the following revenue and cost functions, determine for what x-values a loss will occur. (Recall that profit equals revenue minus cost.) R(x) = 60x - 2x2; C(x) = 20x + 941
A. For 5.0 < x < 15.0
B. For 2.7 < x < 17.3
C. For x < 5.0 or x > 15.0
D. For x < -17.3 or x > -2.7
Answer: D
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Factor completely. If a polynomial cannot be factored, say it is prime.12a2 + 13ab + 3b2
A. (12a + b)(a + 3b) B. (3a + b)(4a + 3b) C. (3a - b)(4a - 3b) D. prime
Simplify by writing the expression with positive exponents. Assume that all variables represent nonzero real numbers.
A. 
B. 7r-6
C. 7
D. 7r6
Multiply and, if possible, simplify. Assume that all variables represent nonnegative numbers.
? 
A. 4x5
B. 2
C. 2x10
D. 2x5
Solve. Round to the nearest tenth.Shane is flying his kite on 40 yd of string. The kite is directly above the edge of a pond. The edge of a pond is 25 yd from where the kite is tied to the ground. How far is the kite above the pond?
A. 2225 yd B. 975 yd C. 31.2 yd D. 47.2 yd