Estimate the area under the graph of f(x) = 25-² over the interval [-1,4] using four approximating rectangles. Round your answers to two decimal places. a. Using right endpoints, we get RA b. Using left endpoints, we get LA = c. For even a better estimate, we can find the mean of Rn and Ln. Find the mean of these two values. R₁ + LA 2

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A: Substitute, x2 + 2 = t.

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