exam Maths Puzzle Numerical Ability

Use the properties for radicals to simplify each of the following expressions. Assume that all variables represent positive real numbers.

1. square root of 5/3

2. square root of 12x cubed/5

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exam Other Question

If the shortest side of a right triange is tripled, with 4 added to the result, the result is the longest side. The medium side is 10 more than twice the shortest side. Find the length of the shortest side. Find the length of the latus rectum of the parabola with an equation
x^2-6x-8y+25

Work so far:

x^2-6x=8y-25
x^2-6x+9=8y-25
(x-3)^2=8y-25