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Find the area of a trapezoid with a height of 23, base 1 of 10 and base 2 of 18

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?