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Marina CMI [18]
3 years ago
9

He formula for the circumference of a circle is C = 2r, where r is the radius and C is the circumference. The equation solved fo

r r is r = .
Find the radius of a circle that has a circumference of 16.

r = 4
r = 8
r = 12
r = 16
Mathematics
2 answers:
Anni [7]3 years ago
6 0
I think the answer is r=8..
hope this helps!:)
castortr0y [4]3 years ago
5 0

Answer:

Option 2nd is correct

r = 8 units

Step-by-step explanation:

As per the statement:

The formula for the circumference of a circle is C = 2r

where, r is the radius of the circle

To find the radius of the circle.

Circumference(C)  = 16 units

then;

16 = 2r

Divide both sides by 2 we have;

8 = r

or

r = 8 units

Therefore, the radius of the circle is, 8 units

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Lucy rolls 2 fair dice and adds the results from each.
Daniel [21]

Answer:

Answer:

The probability of obtaining the sum of 10 is 1/12 or 0.0833

Step-by-step explanation:

Given

2 fair dice

Required

Probability of obtaining the sum of 10

To solve this, we have to list out the sample space.

Sample space is the total possible sum that can be obtained when she rolls the dice.

Let the first die be represented with S1 and the second be represented with S2.

S1 = {1,2,3,4,5,6}

S2 = {1,2,3,4,5,6}

To get the sample space, we have to add individual elements of S1 and S2.

This is done as follows.

When S1 = 1 and S2 = {1,2,3,4,5,6}

Sum = 1+1, 1+2, 1+3, 1+4, 1+5, 1+6

Sum = 2, 3, 4, 5, 6, 7

When S1 = 2 and S2 = {1,2,3,4,5,6}

Sum = 2+1, 2+2, 2+3, 2+4, 2+5, 2+6

Sum = 3,4,5,6,7,8

Using the same pattern as used above

When S1 = 3 and S2 = {1,2,3,4,5,6}

Sum = 4,5,6,7,8,9

When S1 = 4 and S2 = {1,2,3,4,5,6}

Sum = 5,6,7,8,9,10

When S1 = 5 and S2 = {1,2,3,4,5,6}

Sum = 6,7,8,9,10,11

When S1 = 6 and S2 = {1,2,3,4,5,6}

Sum = 7,8,9,10,11,12

Writing out the Sum, will give us the sample space.

Sample Space = {2, 3, 4, 5, 6, 7, 3, 4, 5, 6, 7, 8, 4, 5, 6, 7, 8, 9, 5, 6, 7, 8, 9, 10, 6, 7, 8, 9, 10, 11, 7, 8, 9, 10, 11, 12}

The sample space has a total of 36 elements

To calculate the probability of obtaining the sum of 10,

We have to count the number of 10's in the sample space

Number of 10 = 3

Probability = Number of 10 / Number of Sample Space

Probability = 3 / 36

Probability = 1/12

Probability = 0.0833

Hence, the probability of obtaining the sum of 10 is 1/12 or 0.0833

5 0
3 years ago
paul has 4 times as many baseball cards as kevin. if they have 250 cards all together how many cards does each have ? (show your
Alina [70]
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7 0
3 years ago
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Lisa has $7.80 to spend on some tomatoes and a loaf of bread. Tomatoes cost $1.20 per pound, and a loaf of bread costs $1.80.The
kenny6666 [7]

Answer:

At maximum, she can buy 5 tomatoes.

Step-by-step explanation:

If you solve the inequality, as so:

1.2x+1.8 <=7.8

1.2x <= 6

x <= 5

4 0
1 year ago
It takes 3 cats 3 minutes to catch 3 mice. How many cats are needed to catch 99 mice in 99 minutes?
Nostrana [21]

Greetings,

I hope you and your family are staying safe and healthy!

So basically, we have 3 cats catching 3 mice in 3 minutes. That means 1 cat is catching 1 mouse, but it takes it 3 mn.

Now if we have 99 mice and we need to catch them in 99 minutes, we will need 99 cats.

99 cats will catch 99 mice in 99 minutes...meaning each cats will take 1 minute to catch their mice.

----------------

If you find my answer helpful, please kindly give 5 stars and press the heart. Thanks!

5 0
2 years ago
Hurry go to finish the homework before 9:00
ahrayia [7]

Answer:

actually the answer is D

Step-by-step explanation:

7 0
2 years ago
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