Combine like terms in the expression. Answer "not possible" if terms cannot be combined.78x - y

A. 15xy
B. not possible
C. 30x - y
D. 56y


Answer: B

Mathematics

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Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible. = 

A. x = 3 
B. x = 
C. x = 3
D. x = 4

Mathematics

Solve the inequality. Write the solution set in interval notation.(2x + 11) > (x - 1)

A. (-?, 25) B. (-25, ?) C. (19, ?) D. (-?, 14)

Mathematics

Calculate the unit vector u = (cos ?)i + (sin ?)j for the given direction angle.? = 2?

A. j B. -j C. i D. -i

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Use inequality notation and interval notation to describe the set. ? The dog's weight W is more than 63 pounds. ?

A. Inequality : W> 63Interval : (63, ?) B. Inequality : W ? 63Interval : (63, ?) C. Inequality : W ? 63Interval : (63, ?) D. Inequality : W < 63Interval : (63, ?) E. Inequality : W = 63Interval : (63, ?)

Mathematics