Simplify.
A. 2a + 5
B. 2a - 5
C. - 
D. - 
Answer: D
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Use scientific notation to solve the problem.A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 x 105 miles per second.
A. 6.0 x 105 miles B. 6.0 x 1014 miles C. 6.0 x 107 miles D. 6.0 x 1012 miles
Convert between English and Metric System of Units.
218 mi = 
km (Round to the nearest thousandth.)
A. 135.488 B. 394.362 C. 350.762 D. 121.111
Provide an appropriate response.The region shown here is to be revolved about the x-axis to generate a solid. Which of the methods (disk, washer, shell) could you use to find the volume of the solid? How many integrals would be required in each case?
What will be an ideal response?
Factor completely. If the polynomial is prime, state so.243x3y6 - 225x6y3
A. 9x3y3(3y + 5x)(9y2 - 15xy + 25x2) B. 9x3y3(3y - 5x)(9y2 + 15xy + 25x2) C. 9x3y3(27y3 - 25x3) D. 9(3xy2 + 5x2y)(9x2y4 - 15x3y3 + 25x4y2)