Solve the problem.The area of a rectangle is x4 -16 and one of its side has length x2+4. Find the length of the other side.

A. x2+4x
B. x2
C. x2+16
D. x2 - 4


Answer: D

Mathematics

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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(4t)i  + 3ln(t - 7)j - k

A. v(0) = j
B. v(0) = -4i - j
C. v(0) = 4i - j
D. v(0) = -j

Mathematics

Provide an appropriate response.True or False? The difference of a negative integer and a positive integer is always a negative integer.

A. True B. False

Mathematics

Express as a sum of logarithms.log47x

A. log4 7 - log4 x B. log2 7 + log2 x C. log2 7 - log2 x D. log4 7 + log4 x

Mathematics

Solve the equation graphically, numerically, or symbolically. If appropriate, round the solution to hundredths. ?2f - 3? + 8 = 4

A. No solution B. -3.5, -0.5 C. -0.5 D. 3.5, 0.5

Mathematics