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maxonik [38]
3 years ago
13

15 POINTS!!!

Mathematics
2 answers:
Musya8 [376]3 years ago
4 0

Answer:

9420 ft

Step-by-step explanation:

First find the circumference to find the distance around

C = 2 * pi *r

C = 2 * 3.14 * 15

   94.2

Then it makes 100 revolutions

94.2*100 =9420

denis23 [38]3 years ago
4 0

Answer:

A

Step-by-step explanation:

100 × 2πr

100 × 2 × 3.14 × 15

9420 feet

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Select the correct answer.
zepelin [54]

Answer:

<em>Answer</em><em> </em><em>is option</em><em> </em><em>c</em>

Step-by-step explanation:

given \: equations \: are \\ x - 2y = 15 \:  \: and \: 2x + 4y =  - 18 \\ divide \: by \: 2 \: in \: second \: equation \\ x  + 2y =  - 9 \:  \: (equation \: 3) \\ adding \: 1and \: 3 \: we \: get \\ 2x = 6 \\ x = 3 \\ substitute \: x = 3 \: in \: equation \: 3 \\ 3 + 2y =  - 9 \\ 2y =  - 9 - 3 \\ 2y =  - 12 \\ y =  - 6

x=3 and y=-6

<em>HAVE</em><em> </em><em>A NICE DAY</em><em>!</em>

<em>THANKS FOR GIVING ME THE OPPORTUNITY</em><em> </em><em>TO ANSWER YOUR QUESTION</em><em>. </em>

6 0
3 years ago
Read 2 more answers
A woman making $1500 per month has her salary reduced by 10% because of sluggish sales. One year later, after a dramatic improve
UkoKoshka [18]

Answer:

  • after the raise, her salary is $1755 per month
  • this is a +17% change from her original salary

Step-by-step explanation:

The multiplier of her original salary to her reduced salary is ...

  (1 - 10%) = 0.90

The multiplier of her reduced salary after her raise is ...

  (1 +30%) = 1.30

The multiplier of her raised salary from her original salary is ...

  (0.90)(1.30) = 1.17 = (1 +17%)

Her salary after the 17% raise is ...

  1.17·1500/mo = $1755/mo

8 0
3 years ago
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The length of a rectangle is 5 centimeters less than twice it’s width. The perimeter of the rectangle is 80 cm. What are the dim
algol [13]
<h3><u>The length is equal to 25.</u></h3><h3><u>The width is equal to 15.</u></h3>

l = 2w - 5

2l + 2w = 80

We have a value for l, so we can plug it into the second equation to solve for w.

2(2w - 5) + 2w = 80

Distributive property.

4w - 10 + 2w = 80

Combine like terms.

6w - 10 = 80

Add 10 to both sides.

6w = 90

Divide both sides by 6.

w = 15

Now that we have a value for w, we can plug it into the original equation to solve for l.

l = 2(15) - 5

l = 30 - 5

l = 25


3 0
3 years ago
NEED HELP ASAP!!!!!!!!
Ymorist [56]
<span>Segment EG is half the length of segment BH because of the Midsegment theorem</span>

5 0
3 years ago
What is the equation for the line in slope-intercept form?
masha68 [24]

Answer:

y=mx+b is slope-intercept form

where m is the slope and b is the y intercept.

Since the line crosses the y axis at 0,0 the intercept is +0 or just nothing.

now all we need to do is find the slope

to do that just go from the y intercept (the first point) y units up and x units over untill u cross at the next point. for examples from (0, 0) to (1, 8)-the next point- i need to go up 8 units up and 1 unit over. this is described as rise over run and that is your slope 8/1 rise/run. rise is how many units i go up (or down) from the y intercept until the next point that lies on the line and run is how far i need to go over from how many units i just went up. If u continue to go 8 up and 1 over from each point u will see that u get a point lying of the line. This is why 8/1 is your slope

8/1 is the slope and 0,0 is your y intercept so we put nothing

the equation is y=8x

Step-by-step explanation:

5 0
3 years ago
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