Question 7(Multiple Choice Worth 1 points) (06.04 MC)
Shannon drew the line of best fit on the scatter plot shown below:
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What is the approximate equatpn of this line of best fit in slope-intercept form?
Oy - -*x+14
Oy = -14x + 733
Oy- -x +14
Oy=-14x + 18

In a circle, a 45° sector has an area of 32π cm2. what is the radius of this circle? 32 cm 12 cm 16 cm 8 cm

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.