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vichka [17]
3 years ago
8

Find the value of x. Only need 7 and 9 answered.

Mathematics
1 answer:
zalisa [80]3 years ago
7 0

Answer:

Step-by-step explanation

7.

\frac{6}{6+6} =\frac{8}{8+8} =\frac{7}{x} \\\frac{1}{2} =\frac{7}{x} \\x=7*2=14

9.

\frac{x+1}{12} =\frac{x-1}{8} \\12x-12=8x+8\\12x-8x=8+12\\4x=20\\x=20/4=5

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Question is below thanks
vichka [17]

Answer:

33.51

Step-by-step explanation:

There's a formula using the value of the angle but I don't remember it so the most easy way is:

A circle has an angle of 360°

so our section has an angle of 60

and we know that 360=60*6

so the area of the circle we divide it by 6 and we get the area we want

A=\pi r^2\\\\A=\pi (8)^2\\\\A=64\pi

divide this by 6

A_1=A/6=64\pi/6\approx 33.51 units squared

5 0
3 years ago
Read 2 more answers
1) A book contains 192 pages. A boy reads x complete pages everyday.if he has not finished the book after 10days, find the highe
dlinn [17]

9514 1404 393

Answer:

  19

Step-by-step explanation:

After x days, the boy will have read 10x. If this is less than 192, we have ...

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If x is an integer, the largest possible value x could have is 19.

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3 years ago
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mezya [45]

Answer:

B

Step-by-step explanation:

TRUST.

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