A population of viruses is increasing at a constant relative growth rate in the bloodstream of its host. After three days the mpopulation increases from 260 to 17 (a) Write a model for the virus population after t days. (Round the relative growth rate to four decimal places.)
A(L) = 260e-63371
(b) According to the model, how many viruses will be present after one week? (Round your answer to the nearest whole number.)
21951 viruses
(c) At what rate is the virus population increasing after one week? (Round your answer to four decimal places.)
viruses per day

the distance from any point on the parabola to the focus is the exact same as the distance from that point to the directrix.

if you could provide answer choices that might allow me to answer the question easier if my above answer isn't an option! (:

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

merry christmas!

~

your friendly neighborhood human spider! .

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.