"knowing that your friend angella studies for her tests only 40 percent of the time, you place an even bet with a third party that angella will not study for her upcoming test. later, you just happen to hear that angella passed the test. should you retract your bet? (assume that angella passes nine out of ten tests when she studies, and three out of ten when she does not.)

i belive those are the ones that are under 90 degreese.

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.

2

step-by-step explanation:

25/6 hope it : )

step-by-step explanation: