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
Mars2501 [29]
3 years ago
6

What is the ratio for the surface areas of the cones shown below, given that

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
5 0

Answer:

The ratio for the surface areas is equal to 4

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

z -----> the scale factor

In this problem

The scale factor is equal to

z=\frac{2}{1} ----> the ratio of its corresponding radii or its corresponding altitudes

step 2

Find the ratio for the surface areas of the cones

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z -----> the scale factor

x ----> the surface area of the larger cone

y ----> the surface area of the smaller cone

z^{2} =\frac{x}{y}

we have

z=\frac{2}{1}

substitute

(\frac{2}{1})^{2}=\frac{x}{y}

4=\frac{x}{y}

The ratio for the surface areas is equal to 4

That means-----> The surface area of the larger cone is 4 times the surface area of the smaller cone

You might be interested in
Find the value of x and y.
Leya [2.2K]

Answer:

x = 63 y = 27

Step-by-step explanation:

The straight line is 180 degrees

subtract 117 from 180 to get 63

It says x+7= 90, so subtract x(63) from 90 to get 27

4 0
2 years ago
Zoe has 4 cucumbers she grew in her garden. She wants to share them equally among 3 of her neighbors.
dedylja [7]

4 divided by 3 = a whole and 3 repeated more than 4 times

(to use the number 4)

:D

8 0
2 years ago
What is the area of this composite figure?
Gelneren [198K]

Answer:

249 centimeters squared

Step-by-step Explanation:

The area of the rectangle: l x w, where l is the length and w is the width.

= 15.5 x 18

= 279

Area of the smaller rectangle: l x w, where l is the length and w is the width.

= 4 x 7.5

= 30

We do not need this 30.

Area of the shaded region:

= 279 - 30

= 249 cm²

5 0
2 years ago
Sorry my brain hurts... Most of u love the points anyway
Amanda [17]
I think the answer's C: $7000/$8000
That's a surprisingly easy question for high school
6 0
3 years ago
Read 2 more answers
3(1−9a)+22a=2(2a−9)−15<br> i need a step by step explanation please
SpyIntel [72]

Answer:a=4

Step-by-step explanation:

Expand the brackets. Collect like terms. Get the same values on each side so it’s easier to isolate a. Divide 9 from 9a so that u get a by itself and this gives u the answer if 36/9 or 4.

5 0
2 years ago
Read 2 more answers
Other questions:
  • What is .133 repeating as a fraction?
    6·2 answers
  • Which of the following describes how to translate the graph y = Ixl to obtain the graph of y = 1x - 11 - 1?
    5·1 answer
  • What’s 5+5 divided by 20
    9·1 answer
  • A rectangle has vertices A(2,6), b(2,9), c(7,9), d(7,6). what is the perimeter of the rectangle?
    13·1 answer
  • Rewrite this expression <br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B5%5D%7Bx%7D%20" id="TexFormula1" title=" \sqrt[5]{x}
    15·1 answer
  • Find the sum of (-4 + 1) and (10 – 5:).
    7·2 answers
  • Josh is inviting his friends to a party he has 42 canola bars and 56 foot drinks and he wants to get the same number of each ite
    8·1 answer
  • Help me please! Two parallel lines are cut by a transversal as shown below
    8·2 answers
  • What is the length of A'B'?
    8·1 answer
  • What is the factored form of this expression? <br><br> -9x^3-12x^2-4x
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!