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Dmitry [639]
4 years ago
8

Can anyone help me with my maths questions ? please ​

Mathematics
2 answers:
natita [175]4 years ago
8 0
What is the question
oksian1 [2.3K]4 years ago
7 0

Answer:

sure but whats the question

Step-by-step explanation:

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Please answer this question I will give you brainliest!​
romanna [79]

circumference of circle= 2x3.14r

1) radius is 9

2x3.14x9

18x3.14= 56.52

2) radius is 8

2x3.14x8

16x3.14= 50.24

3) radius is 5

2x3.14x5

10x3.14= 31.4

4 0
3 years ago
A circle has a radius of 12.6 cm.
d1i1m1o1n [39]
Circumference = 2 * PI * radius
circumference = 2 * PI * 12.6
If the central angle is 120°, then the arc will be exactly one third of the circumference.
arc length = (2 * PI * 12.6) / 3
arc length = 8.4 PI


5 0
3 years ago
1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+(Just for fun)
vladimir2022 [97]
Ur answer is 54 i’m pretty sure
4 0
3 years ago
Read 2 more answers
It x, y, and z are positive intergers and 3x = 4y = 7z, then the least possible value of x + y + z is???
Dmitry [639]

3x = 4y = 7z \\ \Rightarrow \begin{cases}3x - 4y = 0 \\4y - 7z = 0 \\ 7z - 3x = 0\end{cases} \\ \Leftrightarrow \begin{cases}x =  \frac{4}{3} y\\4y - 7z = 0 \\ 7z - 3( \frac{4}{3}y)  = 0\end{cases}  \\ \Leftrightarrow \begin{cases}x =  \frac{4}{3} y\\4y - 7z = 0 \\ 7z - 4y= 0\end{cases} \\ \Leftrightarrow \begin{cases}x =  \frac{4}{3} y\\ y \\ z =  \frac{4}{7}y \end{cases} \\ x,y,z\: are\: intergers\Rightarrow y=LCM(3,7)=21\Rightarrow x = 28,z = 12 \\ \Rightarrow x + y + z = 61

5 0
3 years ago
Which one is it? Please answer thank u
Anestetic [448]

Answer: C

Step-by-step explanation:

3(x+4y-2)

3x+12y-6

8 0
3 years ago
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