Consider the model of exponential growth or decay given by A = A exp(kt). If k the function models amount or size of a growing entity if k the models amount size of a decaying entity'.

which answers are

a >0; <0
b =0;=/0
c >0; <0
d <0; <0

(a) >0;<0

Step-by-step explanation:

We are given that an exponential function

We have to find the correct answer.

Differentiate w.r.t t

If k is positive

i.e k>0

Then,

Hence, the function is increasing.

When k is negative

i.e k<0

Then,

Hence, the function is decreasing.

If k>0 the functions models amount or size of a growing entity if k<0 the models amount size of a decaying entity.

Option (a) is true.

45

step-by-step explanation:

smple

7 weeks

step-by-step explanation:

convert each fraction to the least common multiple of 20, so 3/4 = 15/20 & 1/10 = 2/20, then divide 15 by 2 and you get a little over 7, so the food will last 7 weeks.