Solve the problem.A newly built house has a room in it such that the length is 3.9 ft more than the width. The perimeter is 41.4 ft. What are the dimensions?
A. 8.4 ft by 12.3 ft
B. 19 ft by 23 ft
C. 9.4 ft by 13.3 ft
D. 20.7 ft by 24.6 ft
Answer: A
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Find the x-intercepts for the parabola whose equation is given. If the x-intercepts are irrational, round your answers to the nearest tenth.y = 2x2 + 2x - 144
A. x-intercepts (-8, 0) and (-9, 0) B. x-intercepts (8, 0) and (9, 0) C. x-intercepts (8, 0) and (-9, 0) D. x-intercepts (-8, 0) and (9, 0)
Write the expression as the sum or difference of multiples of logarithms.logb 
A. m7p6 - n3b8 B. 7 logb m + 6 logb p - 3 logb n - 8 C. logb m7 + logb p6 + logb n3 - logb b8 D. 7 logb m + 6 logb p - 3 logb n + 8
Solve the problem.Solve for m in terms of the other variables.
A. m = 
B. m = 
C. m = n2 - p2
D. m = 
Find the average.30, 35, 34, 41
A. 34 B. 35 C. 36 D. 140