Y would equal 40 because 180 is the total
From the diagram, we can see that the radius of the cone is 8cm and the height of the cone is 15cm. We then just plug these numbers into the formula and simplify:
The volume of the cone is approximately 1005.3096 cm^3. With 3 sig figs, this is 1010 cm^3.
Answer:
Heres how you do it
Step-by-step explanation:
10+2 =12 which means 72
Answer:
The z-score is
The length of days is not unusual
Step-by-step explanation:
From the question we are told that
The population mean is
The standard deviation is
The value considered is
The z-score is mathematically represented as
Now given that the z-score is not greater than 3 then we can say that the length of days is not unusual
(reference khan academy)
So first let’s multiply both sides by 10
Now we are left with this:
-4x-90<9
Now you want to move the -90 to the other side and when you do this you have to change the sign as well so now you have this:
-4x<9+90
Now add 9 and 90 together and you’ll get this:
-4x<99
Then divide both sides by -4 and flip the inequality sign
x>- 99/4
Your answer would be:
x>- 99/4
Hope this helps! :3