Which of the following statements provides the best guidance for model building? if the value of r2 increases as more variables are added to the model, the variables should remain in the model, regardless of the magnitude of increase. if the value of the adjusted r2 increases as more variables are added to the model, the variables should remain in the model. if the value of r2 increases as more variables are added to the model, the variables should not remain in the model, regardless of the magnitude of the increase. if the value of the adjusted r2 increases as more variables are added to the model, the variables should not remain in the model.

i think it would be 42cm

the answer is d on edge

step-by-step explanation:

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.

noncoplanar points are points that do not lie on the same line.