Write in exponential form. Assume all variables are positive real numbers.

A. x3/15
B. x1/15
C. x3/5
D. x5/3


Answer: C

Mathematics

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Find the curvature of the space curve.r(t) = (1 + t)3/2i +(1 - t)3/2j + tk 

A. ? = 
B. ? = 
C. ? = 
D. ? = 

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Simplify the expression. 

A. 6 - z
B.
C.  - 6
D. z - 6

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Find the center and radius of the circle with the given equation. (x - 1.7)2 + (y + 4.7)2  = 7

A. (1.7, -4.7); r = 
B. (1.7, -4.7); r = 7
C. (4.7, -1.7); r = 7
D. (4.7, -1.7); r = 

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Prepare a probability distribution for the experiment. Let x represent the random variable, and let P represent the probability.Three coins are tossed, and the number of heads is noted.

A.

B.

C.

D.

Mathematics