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s344n2d4d5 [400]
2 years ago
5

Find the circumference of the circle. 7 m

Mathematics
1 answer:
Nutka1998 [239]2 years ago
8 0

Answer:

43.96m is the answer

Step-by-step explanation:

circumference of circle=2πr

=2*3.14*7

=43.96m

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A robot can complete 7 tasks in 5/6 hour. Each task takes the same amount of time. How long does it take the robot to complete o
tester [92]

Answer:

5/42

Step-by-step explanation:

To solve this problem, you have to divide 7 and 5/6 to find the unit rate (how much hours it takes to do one task).

  1. Write what you know into a ratio

<u>7 tasks</u>

5/6 hour

2. You want to know how many hours one task takes, so make that a ratio as well.

<u>7 tasks   </u>          <u>  1 task</u>

5/6 hour            ? hour

Ask yourself what do you do to the 7 in the numerator to get to one.

That's right! you divide by 7! And whatever you do to the numerator you do to the denominator (and vise-versa). Therefore if you divide the numerator(7) by 7 to get 1, you divide the denominator (5/6) by 7 as well.

5/6 divided by 7 is 5/42 meaning it takes the robot 5/42 hour to complete one task.

<u>1 task</u>

5/42 hour

6 0
3 years ago
A fair die is rolled 12 times. Consider the following four possible outcomes: (i) 5 2 6 3 2 1 4 1 6 5 3 4 (ii) 1 1 2 2 3 3 4 4 5
wolverine [178]

Answer: Hello mate!

A fair die has the possible results of 1, 2, 3, 4, 5 and 6, where all have the same probability ( that is 1/6).

then when you throw the dice 12 times, all the possible arrays of 12 numbers between 1 and 6 have the same probability of showing up, that is equal to

(1/6)^12

this means that the distribution (iii) 6 6 6 6 6 6 6 6 6 6 6 6 (where each 6 has a 1/6 probability) has the same probabilities that  (iv) 1 5 4 3 5 1 2 4 4 6 4 5 (where each number has the same probability; 1/6) and we here are imposing order, so the first number must be a 1, which has a 1/6, the second must be a 5, which also has a 1/6; this is the same for every number (doesn't matter if they are different or equal)

then the correct answer is: with a fair die. They are all equally likely.

6 0
4 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. <br> IM GIVING 50 POINTS !! DONT SKIP :((.
yan [13]

Answer:

Step-by-step explanation:

m= 25 and b= 450

y= 25x+450

I believe proportional

positive slope

please correct me if I am wrong

3 0
3 years ago
Can you multiply these decimals in your head? You should be able to do it very quickly. Can you figure out the trick? 26.9 × 52.
Vanyuwa [196]

I’m kinda dumb but isn’t it 0 because anything times 0 is 0

3 0
3 years ago
Read 2 more answers
Solve:<br> -19 + 3x = 3(x - 5)
ollegr [7]

Answer:

x=4

Step-by-step explanation:

19+3x=3(x-5)

do rainbows

19+3x=3x-15

subtract 19 on other side

3x=3x+4

divide out the 3s

x=4

8 0
3 years ago
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