I'll just help quickly with a couple of expressions that are equivalent.
3(m+5+9m)
If you solve it out, you get 3m+15+27m.
Simply the expression to get 30m+15.
You can regroup to make another expression 5(6m+3) which is also equal.
Answer:
The answer to your question is 
, because the directions says to give the answer in factor form.
Step-by-step explanation:
Factor like terms (x - 7)(x + 1)²
Simplify
![\frac{(x+1)^{2}[3(x - 7) - 2(x+1)]}{(x-7)^{3}}](https://tex.z-dn.net/?f=%5Cfrac%7B%28x%2B1%29%5E%7B2%7D%5B3%28x%20-%207%29%20-%202%28x%2B1%29%5D%7D%7B%28x-7%29%5E%7B3%7D%7D)
Expand
![\frac{(x+1)^{2}[3x - 21 -2x - 2]}{(x - 7)^{3}}](https://tex.z-dn.net/?f=%5Cfrac%7B%28x%2B1%29%5E%7B2%7D%5B3x%20-%2021%20-2x%20-%202%5D%7D%7B%28x%20-%207%29%5E%7B3%7D%7D)
Simplify
60 because area of a rectangle is l*b*w. So 6*2*5 will equal 60
So
a. so 100-1/10 of 100 or 100-10=90
then second dose minus 10% or 90-9=81
third dose 81 minus 10%=81-8.1=72.9
fourth dose 72.9 minus 10% or 72.9-7.29=65.61
so after 4th dose only 65.61% are left
b. so to get it to 5% you do alot and find that it takes 27 tries to get the percent down to 5.2% and 28 doses to get it to 4.7%
Answer:
27000
Step-by-step explanation:
We want to round 27346 to 2 significant figures.
Now, the number already has 5 significant figures, so to reduce it to 2 sig figures, we will have to reduce the 3 digits from the right to zero so that we can have just 2 significant figures by approximating.
Thus, 3 is less than 5 and so 7 cannot increase. Thus, we will have 27000 as the number when reduced to 2 significant figures.
