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Svetach [21]
3 years ago
14

How does the volume of a cylinder change when its diameter is tripled

Mathematics
2 answers:
guajiro [1.7K]3 years ago
8 0

Answer:

9πr²h

Step-by-step explanation:

cupoosta [38]3 years ago
5 0
V(cylinder)= πr²h
d=2r,
d is diameter, r is radius.
When diameter is tripled, a new diameter D=3d,
new radius R=3d/2=(3*2r)/2=3r
R=3r

V(new cylinder)= πR²h = π(3r)²h=9πr²h

V(new cylinder)/V(cylinder)=9πr²h/πr²h=9

Volume new cylinder 9 times more the volume of old cylinder.




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Help with math hw please
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Answer:

x = 4

Step-by-step explanation:

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Every triangle adds up to 180 degrees.

3(17x-8)=180

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What is the slope of the line that passes through the points (0, –7) and (–4, 3)?
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3 years ago
1. Jackson has 75¢ in dimes, d, and nickels, n, in his pocket. Which equation could be solved to find the possible combinations
SpyIntel [72]

Answer:

Part 1) Option D 75=10d+5n

Part 2) Option B (4, -2), (0, -1), (-4, 0)

Part 3) Option A 50=2LW

Part 4) Option A Ms. Monti bought 4 adult tickets and 3 children’s tickets

Part 5) Option D The kitten weighed 14 ounces when it was 4 weeks old

Step-by-step explanation:

Part 1)

we know that

1\ dime=\$0.10

1\ nickel=\$0.05

Let

d-------> the number of dimes

n-----> the number of nickels

so

0.10d+0.05n=0.75

Multiply by 100 both sides

10d+5n=75

Part 2)

we have

y=(-\frac{1}{4})x-1

To calculate the solutions of the equation for an x value, substitute the value of x in the equation and find the value of y

For x=4 -----> y=(-\frac{1}{4})(4)-1=-2 ----> (4,-2)

For x=0 -----> y=(-\frac{1}{4})(0)-1=-1 ----> (0,-1)

For x=-4 -----> y=(-\frac{1}{-4})(4)-1=0 ----> (-4,0)

Part 3)

we know that

The perimeter of a rectangle is equal to

P=2(L+W)

we have

P=50\ ft

substitute

50=2(L+W) ------> 50/2=(L+W) -----> 50=2L+2W

Par 4)

Let

x------> the number of adult tickets

y------> the number of children tickets

we have

25x + 15y = 145

The ordered pair (4,3) represent

x=4\ adult\ tickets

y=3\ children\ tickets

therefore

Ms. Monti bought 4 adult tickets and 3 children’s tickets

Part 5)  

Let

x------> the number of weeks after it was born

y-----> the kitten’s weight in ounces

we have

y=2.5x+4  

The ordered pair (4,14) represent

x=4\ weeks

y=14\ ounces

therefore

The kitten weighed 14 ounces when it was 4 weeks old


8 0
3 years ago
this picture represents 1-4 of the distance from maria house to the park which represents the whole distance?
saveliy_v [14]
There is no picture provided sorry.
4 0
2 years ago
Uhh answer 1 plus 1 to get points from me I’ll give ya twenty lol
ladessa [460]
1+1 = 3 dhdhsiwodndhdinss
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3 years ago
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