A contractor finds that the angle of elevation (the acute angle between the horizontal and the line of sight) to the top of a building is 46°35' as shown below. What is the measure of ?QRP?
43° 25'
Mathematics
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Evaluate the cylindrical coordinate integral.
A. 6? + ln 2 B. 3? + ln 2 C. 3 - ln 2 D. 6 - ln 2
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Multiply.(x - 3)(x + 3)
A. x2 + 6x - 9 B. x2 - 6 C. x2 - 9 D. x2 - 6x - 9
Mathematics
Factor, if possible.x2 - 1.8x + 0.81
A. Prime polynomial B. (x + 0.9)(x - 0.9) C. (x - 0.9)2 D. (x + 0.9)2
Mathematics
Factor the expression.5(x + y)3 - 10(x + y)2 + 15(x + y)4
A. 5(x + y)[(x + y)2 - 2(x + y) + 3(x + y)3] B. 5(x + y)2[x + y - 2 + 3(x + y)2] C. 5(x + y)3(-2 + 3x + 3y) D. (x + y)2[5x + 5y - 10 + 15(x + y)2]
Mathematics