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VikaD [51]
3 years ago
10

How do i find the circumference of a circle? If I use a 3 as an estimate of pie and the circle is 10 mm across

Mathematics
1 answer:
Llana [10]3 years ago
8 0
If you're using pie it would be

2*\pi*5 because the radius is half of the diameter.

But since you're using three it's

2*3*5

If it helps remember: Twinkle twinkle little star, circumference equals 2 pi r
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Complete this statement 40xa^2+24ax+32a=8a( )
harina [27]
40xa^2 + 24 ax + 32 a = 

all you have to do is factor out a 8a from each term 
aka reverse distribution property 


8a (5 a + 3x + 4)

8 0
2 years ago
AB, CD, and EF intersect at O. If CD is perpendicular to EF and m
REY [17]

Answer:

m(∠AOF) = 148°

Step-by-step explanation:

From the figure attached,

CD intersects line EF at a point O.

Line CD is perpendicular to the line EF.

m(∠AOE) = 32°

m(∠COE) = 90°

Since m(∠COE) = m(∠AOE) + m(∠AOC) = 90°

32° + m(∠AOC) = 90°

m(∠AOC) = 90° - 32° = 58°

m(∠AOF) = m(∠AOC) + m(∠COF)

               = 58° + 90°

               = 148°

Therefore, m(∠AOF) = 148° will be the answer.

4 0
3 years ago
Lois has five blue plates and ten red plates what percent of her plate collection is blue
Dvinal [7]
There are 15 articles of clothing
5 are blue and 10 are red

5/15 will give you a percent which is your answer

Answer 0.333333333
5 0
3 years ago
30 ounces is how many pounds
Effectus [21]

the answer is 1.875 pounds

5 0
3 years ago
−3(y+5)=15 someone please help me with this question my assignment is already late
AnnyKZ [126]

Answer: -10

Step-by-step explanation:

Simplifying

-3(y + 5) = 15

Reorder the terms:

-3(5 + y) = 15

(5 * -3 + y * -3) = 15

(-15 + -3y) = 15

Solving

-15 + -3y = 15

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '15' to each side of the equation.

-15 + 15 + -3y = 15 + 15

Combine like terms: -15 + 15 = 0

0 + -3y = 15 + 15

-3y = 15 + 15

Combine like terms: 15 + 15 = 30

-3y = 30

Divide each side by '-3'.

y = -10

Simplifying

3 0
2 years ago
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