exam Maths Puzzle Numerical Ability

Two isoceles triangles have the same base length. The legs of one of the triangles are twice as long as the legs of the other. Find the lengths of the sides of the triangles if their perimeters are 23cm and 41cm.

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exam Other Question
Simplify the expression. With the result using only positive exponents.

x^5(x^-8)^-6/(x^-7)^-2

a)x^18 b)x^57 c)x^39 d)1/x^57 Use one unit multiplier to convert 20 inches to centimeters (2.54 cm = 1 in.)