Use a calculator to find the sum. Round the result to two decimal places.- 
+ 
A. -1.26
B. -0.64
C. 1.26
D. -8.05
Answer: A
Mathematics
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Evaluate the integral which is given in cylindrical or spherical coordinates.
A. 42? B. 378? C. 189? D. 21?
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Solve the problem.A contractor mixes concrete from bags of pre-mix for small jobs. How many bags with 8% cement should he mix with 4 bags of 18% cement to produce a mix containing 10% cement?
A. 25 bags B. 18 bags C. 20 bags D. 16 bags
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Solve the equation.
= 9
A. {40} B. {20} C. {-40} D. {80}
Mathematics
Indicate whether the graph of the equation is a circle, an ellipse, a hyperbola, or a parabola. Then graph the conic section.x = (y - 2)2 - 9
A. ellipse
B. parabola
C. circle
D. hyperbola
Mathematics