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Varvara68 [4.7K]
3 years ago
7

Can someone please help me on these two questions?

Mathematics
1 answer:
Naddik [55]3 years ago
4 0

Answer:

Arc = angle/360° x 2πr

13) = 72/360 x 2π x 25

= 1/5 x 2π x 25 = 10π

14) 270/360 x 2π x 2

= 3/4 x 4π = 3π

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Can someone help me plz?
irakobra [83]
Both are correct,

For lori’s answer u divide by 6 which is that same as 72/6
5 0
2 years ago
Read 2 more answers
A firefighter sees a woman trapped in a building 47 feet up from the bottom floor. If the firefighter is parked 43 feet away fro
Airida [17]

Answer:

48 degrees

Step-by-step explanation:

4 0
3 years ago
It always confuses me when they make me do the baby steps
fgiga [73]

A. Alright, we want to multiply one equation by a constant to make it cancel out with the second. Since the first equation has a "blank" y, let's multiply the first equation by <em>2</em>.

3x-y=0 → 2(3x-y=0) = 6x - 2y = 0

5x+2y=22


The answer for this part would be: 6x - 2y = 0 and 5x + 2y = 22


B. So now we combine them:

6x - 2y = 0

+ + +

5x + 2y = 22

= = =

11x + 0 = 22 ← The answer


C. Now that we have the equation 11x = 22, we solve for x

11x = 22 ← Divide both sides by 11

x = 2 ← The answer


D. Now that we have x=2, we plug that back in to 5x+2y=22 and solve for y:

5(2)+2y = 22

10 + 2y = 22

2y = 12

y = 6


<u>Therefore, the solution to this problem is x = 2 and y = 6</u>


5 0
3 years ago
Simplyfy the given equation 5x+2(x-3)=-2(x-1)
Blizzard [7]

5x+2x−6=−2x+2

7x−6=−2x+2

7x=−2x+2+6

7x=−2x+8

7x+2x=8

9x=8

x=8/9

Hope this helps, have a blessed day! :-)

5 0
3 years ago
Stacey has a part time job , she earns £8 an hour.
Sedaia [141]

Answer:

Step-by-step explanation:

220/8=27.5

28 hours

8 0
3 years ago
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