Subtract the polynomials.(y7 - y3) - (y4 - y)

A. y7 - y3 + y4 + y
B. y7 - y4 - y3 + y
C. y7 - y4 + y3 - y
D. y7 - y4 - y3 - y


Answer: B

Mathematics

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Use an Euler diagram to determine whether the syllogism is valid or invalid.No even number is divisible by 7.42 is an even number.  ? 42 is not divisible by 7.

A. Valid B. Invalid

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Solve.An express train travels 396 miles between two cities. During the first  of a trip, the train traveled through mountainous terrain. The train traveled  per hour slower through mountainous terrain than through level terrain. If the total time to travel between the cities was 8 hours, find the speed of the train on level terrain.

A. 18 mph B. 36 mph C. 54 mph D. 72 mph

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Set up the percent proportion for the application problem. Do not try to solve for any unknowns.In one storm, Springbrook got 47% of the season's snowfall. That winter, Springbrook had 50 inches of snow. How many inches fell in the one storm?

A.  = 
B.  = 
C.  = 
D.  = 

Mathematics