Subtract in the indicated base.648 - 358
A. 218
B. 318
C. 248
D. 278
Answer: D
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Find the volume of the described solid.The solid lies between planes perpendicular to the x-axis at x = - 4 and x = 4. The cross sections perpendicular to the x-axis are circular disks whose diameters run from the parabola y = x2 to the parabola y = 32 - x2.
A. 
?
B. 
?
C. 
?
D. 
?
Solve the problem.A pantograph is a mechanical device that can be used to draw enlargements or reductions. The pantograph below has a fixed point O. If point P is moved over a picture, P' traces out the copy of the picture, what is the scale factor of the dilation? Assume all of the points along the strips are the same distance apart.
A. 2 B. 1/3 C. 3 D. 1/2
Provide an appropriate response.Evaluate with a calculator: log9 27
A. 1.4314 B. 0.9542 C. 3.2958 D. 1.5
Translate the problem situation to a system of equations. Do not solve.The Cudly College football team scored 124 times last season, some seven-point touchdowns and some three-point field goals. Altogether the 124 scores accounted for 592 points. How many of each type of score was accomplished?
A. x + 3y = 124; 7x + y = 592 B. x + y = 124; 7x + 3y = 592 C. x + y = 592; 7x + 3y = 124 D. x - y = 124; 7x - 3y = 592