Answer:
its D i do belive
Step-by-step explanation:
Answer:
Step-by-step explanation:
let the radius be r and the slant height be L
then first of all: L^2 = r^2 + 9^2
= r^2 + 81
Surface area = πrL = n
volume = (1/3)πr^2 (9) = 3πr^2 = n
then 3πr^2 = πrL
3r = L , then in L^2 = r^2 + 81
9r^2 = r^2 + 81
8r^2 = 81
r = 9/√8
L^2 = 81/8 + 81 = 729/8
L = √1458/4
cos(baseangle) = (9/√8) / (√1458/4)
= 1/3
angle of base = appr 70.5°
check my arithmetic
To find the Mean you have to add all the numbers from the data set,

Next you divide the sum by the amount of numbers in the set,
Final Answer: 52
Answer:
6×2=12
Step-by-step explanation:
there are two vans an 6 students in each van so you would multiply 2×6= 12