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pishuonlain [190]
3 years ago
6

Find the circumference of the circle

Mathematics
2 answers:
Brilliant_brown [7]3 years ago
6 0

The circumference is 72.22. The formula for circumference is the diameter times pi, which in this case multiplies to about 72.22

Bezzdna [24]3 years ago
5 0

Answer:

72.22 inches

Step-by-step explanation:

First, we need to find the radius.

The radius is half of the diameter, which in this case is 23.

23/2 = 11.5

Now we can use the formula for the circumference of a circle.

C = 2\pi r

Plug in 11.5 for r.

C=2\pi (11.5)

C ≈ 72.22

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You jog for 20 minutes a day, after every week you to add 10 minutes. How many weeks will it take for you to be jogging 1 hour a
BabaBlast [244]
If 20 min = 1 day
1 week = + 10 mins
= 30 mins

6 weeks = 60 mins
1 hour 30 mins = 7 weeks
6 0
3 years ago
The coordinate plane below represents a city. Points A through F are schools in the city. graph of coordinate plane. Point A is
Firlakuza [10]
Part A;
There are many system of inequalities that can be created such that only contain points C and F in the overlapping shaded regions.

Any system of inequalities which is satisfied by (2, 2) and (3, 4) but is not stisfied by <span>(-3, -4), (-4, 3), (1, -2) and (5, -4) can serve.

An example of such system of equation is
x > 0
y > 0
The system of equation above represent all the points in the first quadrant of the coordinate system.
The area above the x-axis and to the right of the y-axis is shaded.



Part 2:
It can be verified that points C and F are solutions to the system of inequalities above by substituting the coordinates of points C and F into the system of equations and see whether they are true.

Substituting C(2, 2) into the system we have:
2 > 0
2 > 0
as can be seen the two inequalities above are true, hence point C is a solution to the set of inequalities.


Part C:
Given that </span><span>Natalie can only attend a school in her designated zone and that Natalie's zone is defined by y < −2x + 2.

To identify the schools that Natalie is allowed to attend, we substitute the coordinates of the points A to F into the inequality defining Natalie's zone.

For point A(-3, -4): -4 < -2(-3) + 2; -4 < 6 + 2; -4 < 8 which is true

For point B(-4, 3): 3 < -2(-4) + 2; 3 < 8 + 2; 3 < 10 which is true

For point C(2, 2): 2 < -2(2) + 2; 2 < -4 + 2; 2 < -2 which is false

For point D(1, -2): -2 < -2(1) + 2; -2 < -2 + 2; -2 < 0 which is true

For point E(5, -4): -4 < -2(5) + 2; -4 < -10 + 2; -4 < -8 which is false

For point F(3, 4): 4 < -2(3) + 2; 4 < -6 + 2; 4 < -4 which is false

Therefore, the schools that Natalie is allowed to attend are the schools at point A, B and D.
</span>
7 0
4 years ago
Ms. Moneyhun's son, Sam, just learned to crawl. He can crawl 20 ft in one minute. How many feet can Sam crawl in one hour? (Hint
almond37 [142]

Answer:

1200 ft in one hour

Step-by-step explanation:

The ratio of Sam crawling 20 ft in one minute can be written as:

20:1

Multiply the ratio by 60 to get the minutes to 60 minutes, because there are 60 minutes in an hour:

 20    :    1

×60     ×60

To get:

1200:60  ⇒  This means Sam can crawl 1200 ft in 60 minutes, which is the same as 1200 ft in one hour.

<em>Hope this helps!</em> :)

6 0
3 years ago
55% of 140 percent of a number
Gnoma [55]
55% of 140 Percent

= 55/100 * 140/100      Divide 55 and 100 each by 5.

= 11/20 * 140/100        Cancel the zero at the top and bottom and divide 14 by 2.

= 11  * 7/100

= 77 Percent.
7 0
4 years ago
Find what % of 70 is 12​
marshall27 [118]

Answer:

Percentage Calculator: 12 is what percent of 70? = 17.14.

Step-by-step explanation:

plzzzzzzz Mark my answer in brainlist

and follow me

4 0
3 years ago
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