After m months the height of a plant is 10 + 3m millimeters. how tall is the plant after 8 months? three years?

A. 34 millimeters.

B. 118 millimeters.  

Step-by-step explanation:

We have been given that after m months the height of a plant is millimeters.

To find the height of plant after 8 months we will substitute m=8 in our given expression.

Therefore, the height of plant after 8 months will be 34 millimeters.

B. Now let us find height of plant after 3 years.

First of all we will convert 3 years into months by multiplying 3 by 12 as 1 year equals to 12 months.

Now let us substitute m=36 in our given expression.

Therefore, the height of plant after 3 years (36 months) will be 118 millimeters.

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752

the answer to your question is minor arc.