Use properties of rational exponents to simplify the expression. Assume that any variables represent positive numbers.x7/8? x1/8

A.
B. x7/64
C. x
D. x7/8


Answer: C

Mathematics

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Solve. Use ? = 3.14159 as needed.A grain conveyor 85 feet long is designed to reach the top of a grain bin 40 feet high with a radius of 10 feet. As shown in the figure, the conveyor extends to the center of the top of the bin. How far from the front edge of the bin should the base of the conveyor be placed? Express your answer in feet and inches, rounded to the nearest inch.

A. 64 feet B. 64 feet 9 inches C. 65 feet D. 65 feet 3 inches

Mathematics

Solve.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is  for a resistor whose resistance is  and when the current flowing through the resistor is  find the voltage across a resistor whose resistance is  when the current

flowing through the resistor is 

A. 35 volts
B. 40 volts
C. 63 volts
D. 45 volts

Mathematics

Solve the problem.Let a and b be positive numbers, and let G be their geometric mean. Express the geometric mean of a4 and b4 in terms of G.

A. G4
B. 4G
C. G
D.
E. G2

Mathematics

Use partial fractions to find the sum of the series.

A.
B.
C.
D.

Mathematics