Write the expression with positive exponents only. Then simplify, if possible.9-1 + 4-1
A. 
B. 
C. 
D. 2
Answer: B
Mathematics
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Express the area of the region bounded by the given line(s) and/or curve(s) as an iterated double integral.The parabola 
and the line 
A. 
B. 
C. 
D. 
Mathematics
Use the given transformation to evaluate the integral. src="https://sciemce.com/media/4/ppg__ttt0610191256__f1q37g7.jpg" alt="" style="vertical-align: -4.0px;" />
where R is the trapezoid with vertices at 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response. A triangular tabletop is to be 6.8 ft by 3.6 ft by 4.9 ft. What angles must be cut?
A. 49.1°, 80.2°, 50.7° B. 22°, 124°, 34° C. 44.1°, 105.2°, 30.7° D. 46.0°, 101.2°, 32.7°
Mathematics
Add.-2 + 1
A. -1 B. 3 C. -3 D. 1
Mathematics