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Natasha_Volkova [10]
2 years ago
6

Find the volume of a cylinder with a radius of 4 in and a height that is 3 times the radius

Mathematics
2 answers:
german2 years ago
8 0

Answer:

Volume of a cylinder: V = π * r² * h ,

Base surface area of a cylinder: A_b = 2 * π * r² ,

Lateral surface area of a cylinder: A_l = 2 * π * r * h ,

Total surface area of a cylinder: A = A_b + A_l ,

Step-by-step explanation:

So, when the radius is tripled, the volume will be 3 squared = 9 times than the previous one.

Ronch [10]2 years ago
6 0

Answer:

602.88 in^3

Step-by-step explanation:

3.14 * 4^2 * 12

3.14 * 16 * 12

50.24 * 12

(50 * 12) + (0.24 * 12)

600 + 2.88

602.88 in^3

You might be interested in
Nancy and Mark commute to work, traveling in opposite directions. Nancy leaves the house at 7:00 A.M. And average 20 miles per h
vladimir2022 [97]

Answer:

They will be 170 miles apart at 10 AM

Step-by-step explanation:

Nancy has 15´ of  head start which is 1/4 hr.

NHD = 20*(1/4) = 5 miles is her head start

Mark leaves at 7.15hs = starting point

Marks stop at when they are 170 miles apart = t

------------------------------

t = the time they are 170 miles apart

d= distance in miles Nancy travels in time t

170 - (d+5) = distance in miles Mark travels in time t

------------------------------

Nancy's equation:

(1) d = 20t

Mark's equation:

(2) 170 - (d+5) = 40t

---------------------------

(2) 170-d-5=40t

(2) d+40t=165

Substitute (1) into (2)

(2) 20t+40t=165

(2) 60t=165

(2) t=2.75

7:15 AM + 2.75 hrs (2:45hs) = 10 AM

They are 170 miles apart at 10 AM

check:

(1) d=20t

(1) d=20*2.75

(1) d= 55

---------------

(2) 170 - (d+5) = 40t

(2) 170 - (d+5) = 40*2.75

(2) 170 - d-5 = 110

(2) d=55

4 0
3 years ago
4' 1" − 1' 10" = help me out
Alborosie

Answer: 3’ 3”

Step-by-step explanation:

3 0
3 years ago
Will mark brainlist if it is right
Pepsi [2]

Answer:

2/3 < y < 6

Step-by-step explanation:

So what we want to do is get the equation to become just y surrounded by the gereater than signs. So we have 3y-4 and we first add 4 to all numbers. We now 2 < 3y < 18. WE can divide everything by 3 to get 2/3 < y < 6.

7 0
3 years ago
How does 2+2=4 and 2x2=4 but 3x3=9 and 3+3=6
wlad13 [49]

Answer:

because its an even number.

Step-by-step explanation:

Ex.

2x2=4

2+2=4

10x10=20

10+10=20

12x12=24

12+12=24

4 0
3 years ago
Rachel rides her bicycle due east at 12 kilometers per hour. Amos rides his
Dominik [7]

Answer:

40 km away.

Step-by-step explanation:

a^2 + b^2 = c^2

In this case, a = 16 * 2 = 32 km, since he travels 16 km per hour for 2 hours.

b = 12 * 2 = 24 km, since she travels 12 km per hour for 2 hours.

32^2 + 24^2 = c^2

1,024 + 576 = c^2

1600 = c^2

c^2 = 1600

c = plus or minus 40

Since distance cannot be negative, they will be 40 km away.

Hope this helps!

8 0
3 years ago
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