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Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =

Which is the graph of this function 3 square root of x plus one if