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schepotkina [342]
3 years ago
8

Suppose the radius of a circle is 2 What is its circumference?

Mathematics
1 answer:
Katena32 [7]3 years ago
6 0
12.57 is the circumference
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What is the value of a? <br> Answer options: 27.5, 90, 45, 50
Vikentia [17]

Answer:

90°

Step-by-step explanation:

Arc a subtends and angle of 45° to the circumference of the circle

We know that;

An angle subtended by an arc to the center of a circle is twice the angle subtended by the same chord to the center of the circle.

Therefore, if arc a subtends and angle of 45° to the circumference of the circle then;

a will be = 45 × 2

              =  90°

8 0
3 years ago
Brennan took a total of 16 pages of notes during 8 hours of class. After attending 10 hours of class, how many total pages of no
Nezavi [6.7K]
We use unitary method over here. To find out the number pages he writes in 1 hour we should;
16÷8 = 2.
So Brennan writes 2 pages in 1 hour.
Hence, in 10 hours he writes;
2 × 10 = 20.
∴ in ten hours Brennan writes 20 pages.
6 0
3 years ago
Lawrence drives the same distance monday through Friday commuting to and from work. Last week Lawrence drove 25 miles on the wee
alexira [117]

Answer:

60 - 25 = 35

35 / 7 = 5

Lawrence drives 5 miles each day commuting to and from work.

8 0
3 years ago
Read 2 more answers
A teacher is organizing her school supllies. she noticed that for every 2 pencils she has 7 pens. If she has 35 pens how many pe
Liula [17]

Answer:

10

Step-by-step explanation:

because 7÷35 =5 but that would be for only one pencil so if u multiply that 5×2 it would be 10 pencils

6 0
3 years ago
NEED HELP WILL GIVE BRAINLEST
Elanso [62]

Answer:

The answer is 2

Step-by-step explanation:

3/4÷ 3/8 =

3 × 8 * 4 × 3 =

24/12 =

<u>24 ÷ 12</u>

12 ÷ 12 = 2

6 0
3 years ago
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