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
Lubov Fominskaja [6]
3 years ago
14

Find the area of the circle. Use 3.14 for pi A = pi r2 A= [?]

Mathematics
1 answer:
rjkz [21]3 years ago
4 0

Answer:

A = 153.86 cm^2

Step-by-step explanation:

The area of a circle is given by

A = pi r^2 where pi is approximated by 3.14 and r is the radius

We are given a diameter of 14

r = d/2 = 14/2 = 7

A = 3.14 * 7^2

A = 3.14 * 49

A = 153.86 cm^2

You might be interested in
Which represents the solution set of 5(x+5)<85
andrey2020 [161]
X<12 
<span>5(x+5)<85 </span>
<span>5(x + 5)/5 < 85/5 </span>
<span>x + 5 < 17 </span>
<span>x + 5 - 5 < 17 - 5</span>
3 0
3 years ago
a cone and a sphere have the same volume. the height of the cone is 96 units. what would be the values for the radius of the con
jolli1 [7]

The volume V_c of a cone  with base radius r_c and height h_c is

V_c = \dfrac{1}{3}\pi r_c^2 h_c

Similarly, the volume V_s of a sphere with radius r_s is

V_s = \dfrac{4}{3}\pi r_s^3

We know that V_c=V_s and that h_c=96

So, we can set up the following equation:

\dfrac{96}{3}\pi r_c^2=\dfrac{4}{3}\pi r_s^3

We can simplify the common denominator 3, and pi appearing on both sides:

96r_c^2=4r_s^3

We can divide both sides by 4:

24r_c^2=r_s^3

Without further information, this is all we can say: the cubed radius of the sphere is the same as 24 times the squared radius of the cone.

3 0
3 years ago
Write 2 1/2 miles in 3/4 hour as a unit rate
ValentinkaMS [17]

Answer:

3 1/3 mph

Step-by-step explanation:

2.5 ÷ 0.75 = 3.3

or

5/2 ÷3/4 = 5/2 · 4/3 = 20/6 or 10/3 = 3 1/3

4 0
3 years ago
Which set of side lengths will NOT form a triangle?
Georgia [21]

Answer:

Its D

Step-by-step explanation:

7 0
3 years ago
After giving 16 coins to Melissa, Juan had twice as many coins as Melissa. If they had 144 coins altogether, how many coins did
dem82 [27]

Melissa tem 16 moedas

Juan tem o dobro, ou seja, 16 x 2 = 32

Na adição vai ser o mesmo resultado

16+16=32

Se eles juntos tivessem 144 moedas.

Calculando

144 ÷ 2 = ou seja dividido por duas pessoas sendo melissa e juan

R = juan tem 72 moedas.

Cada um vai ficar com 72 moedas

3 0
3 years ago
Other questions:
  • 721 lbs per week into kg per second SHOW WORK PLEASE:)
    8·1 answer
  • In ΔIJK, the measure of ∠K=90°, the measure of ∠J=76°, and JK = 3.6 feet. Find the length of IJ to the nearest tenth of a foot.
    5·1 answer
  • A designer is working to decorate a circular room with a radius of 9 meters and needs to know the area of the room to purchase t
    12·2 answers
  • The graph of which function will have a maximum and a y-intercept of 4?
    10·1 answer
  • I have some geometry questions today!
    11·1 answer
  • Use elimination to solve the system of equations.<br> 2X - 3Y = 9 <br> -5X - 3Y = 30
    15·1 answer
  • What is 10 x 5 + 50 I need an lot of help im mest up in the brain.
    10·2 answers
  • There are 680 restaurants in downtown Metropolis. 20% of them serve pizza. How many of them serve pizza?
    6·2 answers
  • The seismic wave of an earthquake is represented by the equation r = 13.2 sin(θ), where r is measured in miles. What does the 13
    5·2 answers
  • can someone explain and answer this for me.... my math final is tomorrow and this is the only thing im confused on​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!