A(t) = A 0 e -0.000002t
A (t) 20
A0. 80
T time in years?
20=80 e -0.000002t
Solve for t
20/80=e -0.000002t
Log (20/80)=log (e)×-0.000002t
T=(log(20÷80)÷log(e))÷(−0.000002)
T=693,147 years
Answer:
m=7
Step-by-step explanation:
Replace all occurrences of + − with a single -. A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because 1⋅
−
1
=
−
1
7(m-13)=-42
Divide each term by 7 and simplify.
m-13=-6
Move all terms not containing m to the right side of the equation.
m=7
Hope this helps!
Plz mark brainiest! =D
Hey there!
The answer to your question is one zero.
To solve this, we can first start by finding the cube root.
The answer to this is , because
Now, we can see that there is one zero at the end of .
Hope it helps and have a great day/night! Stay safe!
Answer:
81
Step-by-step explanation:
Set up a proportion to find how many total students there are [notice how females are on top and totals are on the bottom of the ratios]
= so cross multiply 4x = 396(9) so x = 891, if there are a total of 891 students and you need 1 teacher per 11 students then take 891/11 so you need 81 teachers.
You could set up another proportion 1/11 = x/891