exam Maths Puzzle Numerical Ability

Find the surface area of each pyramid to the nearest whole number?

11in. = slant height
12in. = perimeter

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The lenght of a rectangle is 1ft more then twice its width, and the area of the rectangle is 45ft^2. I am trying to find the diensions of the rectangle.
Length _____ft
Width _____ft

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For any given level of , a confidence interval that is constructed using the t distribution will utilize a t value corresponding to an area of _________ in the tails of the