Answer: x= 8, -8
explanation: i used the app m a t h w a y s
Answer:
169.04 in² (nearest hundredth)
Step-by-step explanation:
Surface area of a cone =
r² +
r
(where r = radius of the base and
= slant height)
Given slant height
= 10 and surface area = 188.5
Surface area =
r² +
r
188.5 =
r² + 10
r
r² + 10
r - 188.5 = 0
r =
= 4.219621117...
Volume of a cone = (1/3)
r²h
(where r = radius of the base and h = height)
We need to find an expression for h in terms of
using Pythagoras' Theorem a² + b² = c², where a = radius, b = height and c = slant height
r² + h² =
²
h² =
² - r²
h = √(
² - r²)
Therefore, substituting found expression for h:
volume of a cone = (1/3)
r²√(
² - r²)
Given slant height
= 10 and r = 4.219621117...
volume = 169.0431969... = 169.04 in² (nearest hundredth)
5n-4 is 4 less than 5 times a number
Hello!
Assuming that these people were born in a fair year (no leap year, etc.) there is a 1/365 chance of one birthday. Each person has this 1/365 chance, so if we are referring to two people, we get a 1/133225 chance, which is about 0.27%.
I hope this helps!
Answer:
yep
Step-by-step explanation:
yes always