book Maths Puzzle Numerical Ability

The formula for the height s reached by a rocket fired straight up from the ground with a velocity of 96 feet per second is h = -16t^2 + 96t. Find the height reached after 1.5 seconds.

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book Other Question
square root of 18x2 multiplied by the square root of 12x


2) Divide 3+2i/1-1i


3) Write a quadratic equation whose solutions are 3+i and 3-i A rectangle is twice as long as it is wide if its length and width are both icreased by 2 cm the area of the rectangle is increased by 40 cm find the dimensions of the original rec