A sports-equipment researcher was interested in the relationship between the speed of a golf club (in feet per second) and the distance a golf ball travels (in yards). Information was collected on several golfers and was used to obtain the
regression equation y = 2x - 106, where x represents the club speed and y is the predicted distance. Which statement
best describes the meaning of the slope of the regression line?
For each increase in distance by 1 yard, the predicted club speed increases by 2 ft/sec.
X For each increase in distance by 1 yard, the predicted club speed decreases by 106 ft/sec.
For each increase in club speed by 1 ft/sec, the predicted distance increases by 2 yards.
For each increase in club speed by 1 ft/sec, the predicted distance decreases by 106 yards.
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step-by-step explanation:

because i said it is

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240

the radius is 2 times the diameter.

step-by-step explanation: