Use properties of rational exponents to simplify the expression. Assume that any variables represent positive numbers.

A. 27x8/7
B. 81x19/7
C. 81x5
D. 3x19/7


Answer: B

Mathematics

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Use a finite approximation to estimate the area under the graph of the given function on the stated interval as instructed.f(x) = x2 between x = 0 and x = 3 using a right sum with two rectangles of equal width.

A. 16.875 B. 8.4375 C. 3.375 D. 12.5

Mathematics

Choose the two points that lie on the line that passes through the given point and has slope m.(3, -1) m = 0

A. (0, -1) and (1, -1) B. (0, 3) and (1, 3) C. (3, 0) and (3, 1) D. (-1, 0) and (-1, 1)

Mathematics

Find the perimeter of the polygon.

A. 6 cm B. 12 cm C. 18 cm D. 9 cm

Mathematics

Solve.If the force acting on an object stays the same, then the acceleration of the object is inversely proportional to its mass. If a force acts on an object with a mass of 80 kilograms so that it accelerates at  per second per second, then find the acceleration of an object with a mass of  that is acted on by the same force.

A. 10 meters per second per second B. 80 meters per second per second C. 90 meters per second per second D. 81 meters per second per second

Mathematics