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lidiya [134]
3 years ago
8

a circle has a radius of 3. an arc in this circle has a central angle of 60° . what is the length of the arc

Mathematics
2 answers:
Mashcka [7]3 years ago
8 0

Answer:

Step-by-step explanation:

120

ivolga24 [154]3 years ago
8 0

Answer:

Step-by-step explanation:

To find arc length, start by dividing the arc's central angle in degrees by 360. Then, multiply that number by the radius of the circle. Finally, multiply that number by 2 × pi to find the arc length.

60/360=0.166666 times 2 times pi

1.0471975512

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the ratio of girls to boys in the math club was 3.5. if there were 120 children altogether, how many girls were there?
sergejj [24]

3 girls to 5 boys

3+5 =8

120/8 = 15

3 *15 = 45 girls


5 0
3 years ago
Complete this expression using the distributive property
Aneli [31]

Answer:

5(4) + 5(8)

Step-by-step explanation:

Through destributive property, 5 is multiplied by both 4 and 8

8 0
3 years ago
7+4u=70-3u<br> What is U
ruslelena [56]
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Hope this helps!
5 0
3 years ago
Read 2 more answers
Do parallel lines intersect?
zhenek [66]

Answer:

No parallel lines will never intersect.

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
(Essay Question 7 Points)
Irina18 [472]

Well I don't know.
Let's think about it:

-- There are 6 possibilities for each role.
    So 36 possibilities for 2 rolls.
    Doesn't take us anywhere.

New direction:
-- If the first roll is odd, then you need another odd on the second one.
-- If the first roll is even, then you need another even on the second one.
This may be the key, right here !

-- The die has 3 odds and 3 evens.

-- Probability of an odd followed by another odd = (1/2) x (1/2) = 1/4
-- Probability of an even followed by another even = (1/2) x (1/2) = 1/4

I'm sure this is it.  I'm a little shaky on how to combine those 2 probs.

Ah hah ! 
Try this:

Probability of either 1 sequence or the other one is (1/4) + (1/4) = 1/2 .

That means ... Regardless of what the first roll is, the probability of
the second roll matching it in oddness or evenness is 1/2 .

So the probability of 2 rolls that sum to an even number is 1/2 = 50% .

Is this reasonable, or sleazy ?


4 0
3 years ago
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