Simplify the expression by combining like terms.9y7 + 14y7

A. Cannot be simplified
B. -5y7
C. 23y14
D. 23y7


Answer: D

Mathematics

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Find the length of the curve.x = (t3 - 3t), y = t2 + 4, 0 ? t ? 1

A. 2
B.
C.
D.

Mathematics

Find the flux of the vector field F across the surface S in the indicated direction.F = 2xi + 2yj + zk; S is portion of the plane x + y + z = 7 for which 0 ? x ? 4 and  direction is outward (away from origin)

A. 120 B. 352 C. 176 D. 48

Mathematics

For the pair of functions, find the product function or functional value indicated.Find (fg)(3).f(x) = x2 - 4g(x) = 2x

A. (fg)(3) = 6x3 - 24x B. (fg)(3) = 4x2 - 4 C. (fg)(3) = 30 D. (fg)(3) = 10

Mathematics

Use transformations to graph the function.y = -4 cos (x - )

A.

B.

C.

D.

Mathematics