1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
EastWind [94]
2 years ago
7

Hey! can someone give me a step-by-step explanation on how to solve this problem correctly? I know for a fact that I did it inco

rrectly.

Mathematics
2 answers:
kozerog [31]2 years ago
7 0

Answer:

B. 1:18

Explanation Down Below

Step-by-step explanation:

Hello!

First, let's find the volume of each cylinder by plugging in the given values.

Volume of a Cylinder: V = \pi r^2h

<h3>Cylinder A</h3>

Since the variables are the same as given in the formula, we can just use the formula as the volume.

\implies{\boxed{{V = \pi r^2h}}

<h3>Cylinder B</h3>

We have to plug in 3r for the radius, and 2h for the height.

  • V = \pi r^2 h
  • V = \pi (3r)^2(2h)
  • V = \pi(9r^2)(2h)
  • V = 18\pi r^2h

\implies \boxed{ V = 18\pi r^2h}

<h3>Ratio</h3>

We can see that the Volume of Cylinder B is just 18 times the Volume of Cylinder A, but we can find the same ratio using equations.

  • \text{Ratio} = A:B
  • \text{Ratio} = \pi r^2h: 18\pi r^2h
  • \text{Ratio} = \frac{\pi r^2h}{18\pi r^2h}
  • \text{Ratio} = \frac{\not{\pi}\not {r^2}\not{h}}{18\not{\pi}\not{r^2}\not{h}}
  • \text{Ratio} = \frac1{18}
  • \text{Ratio} =1:18

The answer is Option B. 1:18.

Neko [114]2 years ago
7 0
Perhaps the 3 from the radius was squared to 9, and then multiplied by the 2 from the height to get 18 in the “1:18”
This is just a guess in case no one else answers your question you can try this
You might be interested in
In 2000, the average monthly price for basic cable television in the United States was $29.99. In 2016, the average monthly pric
Lelu [443]

Answer:

y(x) = 29.99 + 1.86x

The cost of basic cable television in the United States in the year 2020 will be $67.19.

Step-by-step explanation:

The linear function has the following format.

y(x) = y(0) + ax

In which y(x) is the cost x years after 2000, y(0) is the initial cost, that is, the cost in 2000, and a is the slope(how much the cost changes in a year).

In 2000, the average monthly price for basic cable television in the United States was $29.99.

This means that y(0) = 29.99

In 2016, the average monthly price for the same basic cable television was $59.75.

2016 is 16 years after 2000. So

y(16) = 59.75

Write a linear function that models the cost of basic cable television in the United States for x years after 2000.

y(x) = y(0) + ax

Applying y(16).

59.75 = 29.99 + 16a

16a = 29.76

a = \frac{29.76}{16}

a = 1.86

So

y(x) = 29.99 + 1.86x

Use the linear function to determine the cost of basic cable television in the United States in the year 2020.

2020 is 20 years after 2000, so this is y(20).

y(x) = 29.99 + 1.86x

y(20) = 29.99 + 1.86*20 = 67.19

The cost of basic cable television in the United States in the year 2020 will be $67.19.

3 0
3 years ago
Convert 25% to a decimal.
LekaFEV [45]
Your answer is C.

Hope this helped.
5 0
2 years ago
Read 2 more answers
Question 8
madreJ [45]

9514 1404 393

Answer:

  B.  9 cm

Step-by-step explanation:

The number of face masks Ray can make with 20 m of cord is ...

  (20 m)(100 cm/m)/(10.25 cm/mask) = 195.12195 masks

To make one more mask, he will need to buy an additional amount of ...

  (196 -195.12195)×(10.25 cm) ≈ 9.00 cm

Ray would need to add 9 cm of cord to his order.

7 0
2 years ago
Hacer una representación gráfica para nuestro caso tenemos por un punto M pasan infinitas rectas?​
vladimir1956 [14]

Answer:

make a graphical representation for our case do we have infinite lines pass through a point M?

Step-by-step explanation:

If the graphs of the equations do not intersect (for example, if they are parallel), then there are no solutions that are true for both equations. If the graphs of the equations are the same, then there are an infinite number of solutions that are true for both equations.

5 0
3 years ago
Write 11•47 using the distributive property. Then simplify.
Dennis_Churaev [7]
Distributive property :

a (b+c) = ab + bc

Try writing 47 = 50-3  or 47 = 40+7.

11 x 47 = 11 x (50-3) = 11 x 50 - 11 x 3 = 550 - 33 =  517

or 

11 x 47 =  11 x (40+7) = 11 x 40 + 11 x 7 = 440 + 77 = 517
6 0
3 years ago
Other questions:
  • I need help like RN!!!<br> what are the foci of the ellipse? graph the ellipse. 18x^2+36y^=648
    12·2 answers
  • Simplify 24x5 y6 . A) 2x2 y3 6x B) 4x2 y3 6x C) 6x2 y3 4x D) 6x2 y3 2x
    14·1 answer
  • A traffic helicopter descends 182 meters to be 347 meters above the ground, as illustrated in the diagram to the right.Write and
    10·1 answer
  • I need help do you guys know how to help me with this
    9·1 answer
  • 13. At its peak, Tristan's blog had 1810 monthlyvisitors. Since then, the number of monthlyvisitors has been declining at a rate
    10·1 answer
  • How many solutions?<br> 2x + 6 = 3(x + 2) - x
    13·1 answer
  • Need helppppp asappppp
    12·1 answer
  • How many vehicles are at Nam's Gas Station?
    11·2 answers
  • Find the measure of the angles
    13·1 answer
  • 6(4-z)=2z what does z equal
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!