The number of yeast cells in a laboratory culture increases rapidly initially but levels off eventually. the population is modeled by the function n = f(t) = a 1 + be−0.8t where t is measured in hours. at time t = 0 the population is 10 cells and is increasing at a rate of 7 cells/hour. find the values of a and b. a = 1 -25 b = 2 -3.5 according to this model, what happens to the yeast population in the long run? the yeast population will grow without bound. the yeast population will stabilize at 80 cells. the yeast population will stabilize at 40 cells. the yeast population will stabilize at 7 cells. the yeast population will shrink to 0 cells.

it would be:

c.parallelogram.

y + 11 = (1/4)(x + 16)

step-by-step explanation:

answer4 to the second power is 16

and 4 to the third power is 64,

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.