book Maths Puzzle Numerical Ability

Find the height of a right triangle whose base measures 10 cm and whose hypotenuse measures square root of 221 cm.

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book Other Question

Evaluate the function y=3x to the 2nd power+ 5x + 1 when

x= -1

x= 0

x= 1

x= 2 FIND THE COST PER UNIT DURING A WEEK WHEN THE TOTAL COST WAS 68,000, THE NUMBER OF UNITS PRODUCED WAS 500, AND THE FIXED COSTS WERE 8000. USE THE FORMULA T=U TIMES N+F, WHERE T IS