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Anvisha [2.4K]
2 years ago
12

Answer correctly please asap!!

Mathematics
1 answer:
Arisa [49]2 years ago
8 0
Tha answer is b because there is 10 numbers and 3 of them are 4.
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PLEASE HELP I HAVE NO IDEA WHAT IM DOING!!!
algol13

Answer: 28.26


Step-by-step explanation:

What your looking for is called the annulus (or the difference of two concentric circles). You can find the annulus by subtracting the area of the inner circle from the area of the outer circle. Volume of a circle= πr²

You are given the diameter in these problems, so you need radius.

For the first circle (8 in one) :

8/2=4    r=4

A=3.14(4)²

A=50.24

For the second one (10 in one) :

10/2=5   r=5

A=3.14(5)²

A=78.5

To find the measure of the annulus, you subtract those numbers, getting 28.26


8 0
3 years ago
What is the value of m in the equation ‡m - 3n=16, when n=8?
soldier1979 [14.2K]

Step-by-step explanation:

equation: m-3n=16

Solution,

or, m - 3n = 16

or, m - 3×8 = 16

or, m - 24 = 16

or, m = 16 + 24

or, m = 40

Therefore, the value of m is '40'

8 0
1 year ago
Students did push-ups for a fitness test. Their goal was 20 push-ups. For each student,
ale4655 [162]

Answer:

1- 80%

2- 210%

3- 65%

4- 105%

Step-by-step explanation:

5 0
3 years ago
Heidikae reads 420 pages a week. In the summer, she reads 17% less. Approximately how many pages per week does she read in the s
Marat540 [252]
420-17%= 348.6



This is it because she read 420 pages during the summer but then she reads 17% less which is subtracting then get the answer which is 348.6
8 0
3 years ago
there are 5 boxes of markers in the drawer. each box contains 24 markers and more than 60% of the markers are blue markers. Find
yulyashka [42]
Each box has twelve blue markers.. no i'm not 100% sure about this answer 
7 0
3 years ago
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