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Nata [24]
2 years ago
11

Help with these questions to

Mathematics
1 answer:
katovenus [111]2 years ago
3 0

Answer:

Step-by-step explanation:

the formula for calculating the perimeter of a circle (the circumference C) is:

2π * r

And the area is:

π * r²

r is the radius.

Radius is the half of the diameter. The diameter here is equal to two square. One square is 5 of side.

The diameter is 10 and the radius is 5

<h3>C = 2 * 3.14 * <u>5</u> = 31.4</h3><h3>A = 3.14 * <u>5²</u> = 3.14 * 25 = 78.5</h3>

It is the same for the other circle

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Which is an irrational number?
zheka24 [161]
I think the on in the top right is the answer.
3 0
3 years ago
Which phrase represents' the sum of 11 and a number
denis23 [38]

Answer:

11 + n

Step-by-step explanation:

sum means addition, so u need a + sign

n is usually the variable used for 'a number'

so 11 and (+) a number (n) = 11+ n

hope this helps!

5 0
2 years ago
Need help asap plz help
Soloha48 [4]

Number three is D and number 4 is also D.

Explanation for number three:

When you divide 12 by 3, you get 4. This gives us the number we need to multiply 10 by to get our answer. 10 x 4 = 40

Explanation for number 4:

In the last question, the first step to getting to the answer was to divide the first two numbers. This is no different. When you divide 32.5 by 5, you get 6.5. Then you multiply 10 and 6.5, which equals 65.

8 0
2 years ago
X − (y − y)= for x = 3 and y = 6
dusya [7]

Answer:

3

Step-by-step explanation:

x − (y − y)

3-(6-6)

3-0

3

3 0
3 years ago
Read 2 more answers
A scientist had 3/4 liter of solution. HE used 1/6 of the solution for an experiment..How much solution did the scientist use fo
Leviafan [203]

Answer:

\frac{1}{8}\ liter

Step-by-step explanation:

we know that

To find out how much solution the scientist used for the experiment multiply 3/4 by 1/6

so

(\frac{3}{4})(\frac{1}{6})=\frac{3}{24}\ liter

simplify

\frac{3}{24}=\frac{1}{8}\ liter

8 0
3 years ago
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