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
lbvjy [14]
3 years ago
13

A wheel has a diameter of 21 inches. About how far does it travel if it makes 30 complete revolutions? Use 22/7 for pi

Mathematics
1 answer:
fgiga [73]3 years ago
5 0
Circumference is the distance around the outside
therefor the circumference is the distance it travels in 1 revelotion

C=πd
d=21

c=21pi
use 22/7 for pio
c=21(22/7)
C=462/7
c=66
that's one revolution
times 30

66*30=1980in or about 165ft
You might be interested in
Whic of the following are valid names for the triangle below? Check all that apply.
emmasim [6.3K]

Answer:

A, C, E

Step-by-step explanation:

As long as all the 3 letters(D, K, and M) are included, it should be a valid name. These are the 3 points in the triangle afterall.

4 0
3 years ago
I Need help with question 21 and 22 !
USPshnik [31]
11) First, add 74 and 43.

74+43=117

Subtract 117 from 180. Do this because this will give you the value of angle 1. This is because the sum of the angles in a triangle will always add up to 180 degrees.

180-117=63

Angle 1 = 63 degrees

Angle 2 also equals 63 degrees, because they are vertical angles.

Angle 2= 63 degrees

Now, add 63 and 79

63+79=142

Subtract 142 from 180

180-142=38

Angle 3 = 38 degrees

12)

First, subtract 56 from 180. Do this to find angle C. They are supplementary angles, so they will equal 180 degrees.

180-56=124

Angle C=124 degrees

Now, add 124 and 20

124+20=144

Finally, subtract 144 from 180

180-144=36

The measure of angle A is 36 degrees

Hope this helped! :)


7 0
3 years ago
Need help <br> Choices<br> 4<br> 3<br> 2<br> 1
-Dominant- [34]

Answer:

1

Step-by-step explanation:

The amplitude is the maximum distance away from the middle of the wave. Here we can see that the middle of the wave is the x axis and the farthest point (largest difference between the y coordinate of the x-axis, or the line y = 0, and the wave) is 1 unit away.

4 0
3 years ago
Read 2 more answers
The first four multiples of 7 are 7, 14 21, and 28. Use this example to help you as you answer the questions below.
Pachacha [2.7K]

Answer:

For A. it would be 9, 18, 27, 36, 45, 54

For B. it would be 12, 24, 36, 48, 60, 72

For C. it would be 36

For D. it would be 3

Step-by-step explanation:

Hope this helps

6 0
2 years ago
Brandon and his friend Adam both mow lawns. Brandon earns $ per week mowing lawns while Adam earns $ per week mowing lawns. Part
olga55 [171]

Answer:

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • A water cup is shaped like a cone. It has a diameter of 3 inches and a slant height of 5 inches. About how many square inches of
    6·1 answer
  • 2) Where does the red egg belong?
    14·1 answer
  • -8(5v-x-5)<br><br> use the distributive property to remove the parentheses<br><br> pls help!
    10·2 answers
  • Ryan has 10 apples hames to 7 how many are left
    13·2 answers
  • What is two plus two​
    11·2 answers
  • The perimeter of a rectangle is 90 centimeters. The length is 27 centimeters.
    11·1 answer
  • X <br> 38°<br> 750<br> x= -<br> degrees
    15·1 answer
  • What is the slope of the points<br> (-2,5) and (4,-6)?
    6·1 answer
  • How i can answer this question
    11·2 answers
  • DO NOT GIVE AN ANSWER FOR ME TO DOWNLOAD...<br> 3x+8 &lt; 14 JUST GIVE THE ANSWER PLS
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!