Multiply and simplify. ? 

A. x3y6
B. x3y6
C. x3y7
D. x3y4

Answer: A

Mathematics

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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (8t2 - 15)i + j

A. v = (16)i + j
B. v = (16t)i + j
C. v = (16t)i - j
D. v = i + (16t)j

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Mathematics

Provide an appropriate response.Find the greatest common factor of 14, 21, and 35.

A. 210 B. 10,290 C. 7 D. 2

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Solve and graph. Write the solution in interval notation.  ? 2

A. ?

B.

C.

D.  ?  

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Rewrite the given expression without exponents.

A.  ? x + x + x + x + y + y
B.  ? x + x + y + y + y + y
C.  ? x ? x ? x ? x ? y ? y
D.  ? x ? x ? y ? y ? y ? y

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Mathematics