Factor completely.4x9 + 12x7 + 8x5 - 10x4
A. x4(4x5 + 12x3 + 8x - 10)
B. 2x(2x8 + 6x6 + 4x4 - 5x3)
C. 2(2x9 + 6x7) + x4(8x - 10)
D. 2x4(2x5 + 6x3 + 4x - 5)
Answer: D
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As part of a statistics project, a 6th grade teacher brings to class a container with 200 red marbles and 800 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 150 marbles from the container. Of the 150 marbles drawn, 33 are red.The sample consists of
A. the 33 red marbles drawn by the student. B. the 1000 marbles in the container. C. the 200 red marbles in the container. D. the 150 marbles drawn by the student. E. none of these
Fill in the missing value.0.294 hL = L
A. 294 B. 0.0294 C. 29.4 D. 2.94
Write the slope-intercept form of the equation for the line passing through the given pair of points.(-7, 1) and (6, 3)
A. y = 
x + 19
B. y = - 
x + 
C. y = 
x + 
D. y = - 
x + 19
Solve the problem.On a certain map, 1 inch equals 32 miles. How many miles are in 5
inches?
A. 41 miles
B. 6
miles
C. 40
miles
D. 168 miles