A jar contains 22 yellow, 26 green, 17 red, and 20 purple marbles. A marble is drawn at random. Find P(not purple).

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

well, because the $0.25 is an added cost depending on how many minutes, the answer would be y = 30 + 0.25x.