Multiply.-5 ? (-5)

A. -25
B. 30
C. 25
D. -30


Answer: C

Mathematics

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Express the value of the inverse hyperbolic function in terms of natural logarithms.sinh-1 (8)

A. ln (8 - )
B. ln 16
C. ln (8 + )
D. ln (8 + )

Mathematics

Solve the problem.Find the center of mass of the region of constant density bounded from above by the sphere  and from below by the cone 

A.  = 0,  = 0,  = 3(2 + )
B.  = 0,  = 0,  = (2 + )
C.  = 0,  = 0,  = (2 + )
D.  = 0,  = 0,  = (2 + )

Mathematics

Find the acceleration of a particle with the following position function.

r(t) = (2t²-2, 4t)

Mathematics

Simplify the expression.

a. 12 b. 36 c. 8 d. 64

Mathematics