Combine like terms.8x + 2 - 5x + 3
A. 3x + 5
B. 13x + 5
C. ( 8x - 5x) + (2 + 3)
D. 8
Answer: A
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Solve the problem.Find the dimensions that produce the maximum floor area for a one-story house that is rectangular in shape and has a perimeter of 122 ft. Round to the nearest hundredth, if necessary.
A. 61 ft × 61 ft B. 10.17 ft × 30.5 ft C. 30.5 ft × 30.5 ft D. 30.5 ft × 122 ft
Rationalize the numerator. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Solve the equation by completing the square. Then (i) give the exact solutions and (ii) give the solutions rounded to the nearest thousandth.x2 = 7 - 4x
A. (i) {-2 ± 2
} (ii) {4.633}
B. (i) {-2 ± 
} (ii) {1.317, -5.317}
C. (i) {-1 ± 
} (ii) {2.317, -4.317}
D. (i) {2 + 
} (ii) {5.317}
Multiply and simplify. (k2 - 49) ? 
A. 
B. 
C. 
D. 