Answer:
6:5
Step-by-step explanation:
i think this is it as I square rooted it and go that
Answer: 135cm
Step-by-step explanation
Volume of a cylinder = πr²h
Volume of a cone. = 1/3πr²h
The two shapes are both solid shapes.
Since the have same volume, we can then equate the two together and solve for the height of the cone.
Now make H the height and R the radius of the cylinder and h the height and r the radius of the cylinder.
Now equating the two
πR²H = 1/3πr²h
Now substitute for the values now
Multiply through by 3
3πR²H = πr²h
But π is common so it could be obliterated from the equation
3R²H = r²h
3 x 12² x 20 = 8² x h
3 x 144 x 20 = 64 x h
60 x 144 = 64h
8640. = 64h
Therefore
h = 8640/64
= 135cm
The indicated sum is 350. The answer is 350 because the E or sigma is making you do (6j+2) ten times. Every time you do 6j+2 you start with j as 1 and add a 1 to j for every time you add. For example, [6(1)+2]+[6(2)+2]+[6(3)+2]...[6(10)+2].
Hope this helps.
The answer is 
First you must use distributive property to simplify.
Then, you must subtract 18 on both sides
Next, add 2 on both sides
Then, subtract 8x on both sides
Finally, Divide both sides by -2. Don't forget to switch the equality sign because the variable was changed to a positive using division.
Answer:
56 + 23 + (-5)
you want to expand the bracket first
23 + (-5)
23-5 = 18
56 + 18 = 74
a) 74
6 + 24 + (-2)
24 - 2= 22
6 + 22 = 28
b) 28
3 + 7 + (-42)
7 - 42 = -35
3 - 35 = -32
c)-32
( 8 + 1 ) + (-3)
+(-3) = -3
9 - 3 = 6
d)6
( 7 + 10 ) + ( 3 + 1 )
17 + 4 = 21
e)21
59 + 2+ (-6)
2+(-6) = 2-6 = -4
59-4
55
f)55
41 + ( -89)
41 - 89
= - 48
g)-48
( - 13) + 33
-13+33
= 20
h) 20
