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A quantity A varies jointly as the cube of y and inversely as the square root of x. If A = 7 when y=2 and x=25, (a)...

A quantity A varies jointly as the cube of y and inversely as the square root of x. If A = 7 when
y=2 and x=25,
(a) Write an equation convecting A, x and y
(b) Find the value of y to three significant figures, when A=12 and x=36
(c) Find the percentage change in A when y is decreased by 11% and x is increased by 21%.

Answers

Kavungya answered the question on November 2, 2019 at 08:32

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