Answer:
66.67 in^3
Step-by-step explanation:
volume of a cylinder = nr^2h
Volume of a cone = 1/3(nr^2h)
n = 22/7
r = radius
the volume of a cone is 1/3 that of a cylinder
volume of the cone = 1/3 x (200) = 66.67 in^3
Answer:
In 50 years there'll be approximately 3582 elephants.
Step-by-step explanation:
If they are decreasing at a rate of 9% per year, it means it's population by year is:
population(0) = 400000
population(1) = population(0)*(100% - 9%) = population(0)*(91%)
population(2) = population(1)*(91%) = population(0)*(91%)*(91%) = population(0)*(91%)²
population(3) = population(2)*(91%) = population(0)*(91%)²*(91%) = population(0)*(91%)³
And so on, so the number of population as years passes is:
population(n) = population(0)*(91/100)^n
In this case we want to know the population of elephants when n = 50, so we have:
population(50) = 400000*(0.91)^50 = 3582.033
In 50 years there'll be approximately 3582 elephants.
Answer:
It can not be simplified after 3/10 so it stays that way
Step-by-step explanation:
1/2=5/10
1/5=2/10
5/10-2/10=3/10
Answer:
third option
Step-by-step explanation:
<u>angle 1</u>
measure of angle 1 is diagonal to 45, theyre congruent angles
so measure of angle 1 is 45
<u>angle 2</u>
the sum of a triangle is 180 degrees
so for measure 2, we add 45 + 59 and we get 104. then we do 180 - 104 and we get 76
so the measure of angle 2 is 76
<u>angle 3</u>
since we know that the measure for angle 1 is 45, we can also solve for the measure of angle 3
to find angle 3, we do 55 + 45 and we get 100
and then you do 180 - 100 and you get 80
so the measure of angle 3 is 80
