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
e-lub [12.9K]
2 years ago
8

GIVING OUT BRAINLIEST TO THE FIRST PERSON TO ANSWER!!

Mathematics
2 answers:
algol [13]2 years ago
5 0

Answer:

C. 1:16

Step-by-step explanation:

Area of a circle is:

\pi \times {r}^{2}

Small circle Area:

radius = diameter/2

radius = 6/2 = 3

area \: of \: a \: circle \:  = \pi {3}^{2}

a = 28.27

Large circle 4 times larger diameter

6*4 = 24

diameter = 24

r = 24/2

r = 12

a \:  = \pi {12}^{2}

a = 452.39

area of large circle/ area of small circle

452.39/28.27 = 16.00

ratio is 1:16

Likurg_2 [28]2 years ago
4 0

Answer:

<h3>The answer is option C</h3>

Step-by-step explanation:

To find the ratio first find the diameter of the larger circle

Diameter of first circle = 6 inches

Diameter of second circle = 4 × diameter of the first circle

Which is

Diameter of second circle

= 4 × 6 = 24 inches

Area of a circle = πr²

r is the radius

<u>Area of smaller circle</u>

Diameter = 6 inches

Radius = 6 / 2 = 3 inches

Area = (3)² π = 9π in²

<u>Area of larger circle</u>

Diameter = 24 inches

Radius = 24 / 2 = 12 inches

Area = (12)²π = 144π in²

The ratio of the smaller circle to the larger circle is

\frac{9\pi}{144\pi}

Reduce the fraction by 9π

That's

\frac{1}{16}

We have the final answer as

<h2>1 : 16</h2>

Hope this helps you

You might be interested in
A gardener is planting two types of trees:
Scrat [10]

It will take 4 years for these trees to be the same height

Step-by-step explanation:

A gardener is planting two types of trees:

Type A is 6 feet tall and grows at a rate of 12 inches per year

Type B is 2 feet tall and grows at a rate of 24 inches per year

We need to find exactly how many years it will take for these trees to be the same height

Assume that it will take x years for these trees to be the same height

Type A:

∵ The initial height of the tree is 6 feet

∵ 1 foot = 12 inches

∴ 6 feet = 6 × 12 = 72 inches

∴ The initial height of the tree is 72 inches

∵ It grows at a rate of 12 inches per year

∵ The number of years is x

∴ The height of the tree in x years = 72 + 12 x

Type B:

∵ The initial height of the tree is 2 feet

∴ 2 feet = 2 × 12 = 24 inches

∴ The initial height of the tree is 24 inches

∵ It grows at a rate of 24 inches per year

∵ The number of years is x

∴ The height of the tree in x years = 24 + 24 x

Equate The heights of the two types

∴ 72 + 12 x = 24 + 24 x

- Subtract 2 from both sides

∴ 48 + 12 x = 24 x

- Subtract 12 x from both sides

∴ 48 = 12 x

- Divide both sides by 12

∴ x = 4

It will take 4 years for these trees to be the same height

Learn more:

You can learn more about the word problems in brainly.com/question/10557938

#LearnwithBrainly

3 0
2 years ago
PLEASE HELP ASAP!! PLEASE ANSWER A AND B! GIVING AWAY 13 POINTS
telo118 [61]
According to google A. Would be 2.375 or as a fraction it would be 2 3/8
5 0
3 years ago
Helppppppppppppppppppppppppppppppppppppppppppppp
Kamila [148]

Answer:

the answer is 8,000

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
In Central City, Elm Street and Maple Street are parallel to one another. Oak Street crosses both Elm Street and Maple Street as
ycow [4]

a. true

b. false ( angles should equal 180 125+65=190)

c. true

d. true

e. true

5 0
3 years ago
(2A)<br> Find f(2x + 4) for f(x) = 1 - x2
Aleksandr-060686 [28]

Answer:

f(2x + 4) = -4x² - 16x - 15

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Distributive Property

<u>Algebra I</u>

  • Terms/Coefficients
  • Expanding (FOIL)

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

f(x) = 1 - x²

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em> [Function f(x)]:                                                                          f(2x + 4) = 1 - (2x + 4)²
  2. Expand [FOIL]:                                                                                                  f(2x + 4) = 1 - (4x² + 16x + 16)
  3. (Parenthesis) Distribute negative:                                                                   f(2x + 4) = 1 - 4x² - 16x - 16
  4. Combine like terms:                                                                                          f(2x + 4) = -4x² -16x - 15
8 0
2 years ago
Other questions:
  • QUICK!! Identify the parts of this prism. A is ___ B is ___ C is ___
    5·2 answers
  • (−2.9)⋅(−2.9)^7 solve and will get 20 pts
    15·2 answers
  • Write an inequality for the situation.
    5·2 answers
  • What is the formula for exponential functions?
    10·1 answer
  • A restaurant manager wants to order new glasses. The ratio of the number of water glasses to the number of juice glasses in the
    15·1 answer
  • What is the actual area, in square meters, of this field?
    5·2 answers
  • Gary Foshee created a popular probability puzzle that goes like this: "I have two children. One is a boy born on a Tuesday. What
    12·1 answer
  • WHAT ARE THE FACTORS OF 57
    14·1 answer
  • What is (3^2)^4? Pls help will give crown if explanation is fair
    12·1 answer
  • I just made a purchase of $130.00 but once I got my car and looked at the receipt, I realized the salesperson who helped me did
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!