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Llana [10]
3 years ago
13

Find the circumference and the area of a circle with diameter 7 cm.

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0

Answer:

21.98 is the circumference because is it 7 pi 7 times 3.14. For the area though it is 38.48 because you need to get the radius of the circle and you divided 7 by 2 which is 3.5 and here is the work A=πr2=π·3.52≈38.48451

Step-by-step explanation:

Hope this helped and you understood if you want it would help a lot if you put it brainliest.

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If x= 10, find 100/x^3
noname [10]

Step-by-step explanation:

x = 10,

100 / x³

100 / 10³

100 / 1000

1 / 10

0.1

Mark ‼️ it brainliest if it helps you ❤️

4 0
3 years ago
If the circumference of the circle is 37.68 units, what is the area? (Use 3.14 for pi .)
solniwko [45]

Answer: 113.04

Step-by-step explanation: The equation for the area of a circle is pi r squared so you have to find the radius first. To find the radius, find the diameter first. A way to do this which was easiest for me was dividing 37.68 by pi (3.14), which is 12. Divide the diameter by 2 to find the radius, 6.

Now use the equation from the beginning, pi r squared. So plug in pi as 3.14, then the radius as 6. It is important to always square the radius first, which would be 36. Now multiply 36 by 3.14, and there should be your answer.

7 0
3 years ago
Please help and explain if so thank you
myrzilka [38]

Answer:

<em>y = 6</em>

Step-by-step explanation:

Slope-intercept form:

y = mx + b

m = slope; b = y-intercept

A line with slope 0 is a horizontal line. Since one point on the line has y-coordinate 6, then all points on the line have y-coordinate 6. The y-intercept is 6.

m = 0; b = 6

y = mx + b

y = 0x + 6

y = 6

4 0
3 years ago
Is this true? if not what’s the answer asap!
tensa zangetsu [6.8K]

Answer:

(x {}^{ - 4} ) {}^{2} \:  =  \: x {}^{ - 4 \times 2 }   =  \: x {}^{ - 8}  =  \:  \frac{1}{ x {}^{8}  }

4 0
3 years ago
Match the equation with the step needed to solve it.
viva [34]
1) Subtract 2m
2) Subtract m
3) Add 1
4) Subtract 2
5) Add 2
6) Subtract 1
8 0
3 years ago
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