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attashe74 [19]
3 years ago
9

May someone one hlrp

Mathematics
1 answer:
Marrrta [24]3 years ago
5 0
52:)

explanation:

haha
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c=PI*d

divide both sides by PI to get d by itself

d = c/PI

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PLEASE HELP ME RN<br> NO LINKS !!!
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Domain of f(x)= square root of 9x
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I hope this helps you





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3 years ago
A and B working together can do a work in 6 days. If A takes 5 days less than B to finish the work, in how many days B alone can
svetlana [45]

Answer:

15 days

Step-by-step explanation:

Let x be the number of days needed for B to complete the job. Then x-5 is the number of days needed for A to complete the job.

In 1 day,

  • A completes \dfrac{1}{x-5} of all work;
  • B completes \dfrac{1}{x} of all work.

Hence, in 1 day both A and B complete \dfrac{1}{x-5}+\dfrac{1}{x} of all work. A and B working together can do a work in 6 days. Then

6\cdot \left(\dfrac{1}{x-5}+\dfrac{1}{x}\right)=1.

Solve this equation:

\dfrac{6x+6x-30}{x(x-5)}=1,\\ \\12x-30=x^2-5x,\\ \\x^2-17x+30=0,\\ \\D=(-17)^2-4\cdot 30=289-120=169=13^2,\\ \\x_{1,2}=\dfrac{17\pm 13}{2}=2,\ 15.

If x=2, then x-5=-3 that is impossible. So, B needs 15 days to complete the work alone.

6 0
3 years ago
Erick and Mia live the same distance from the park and decide to meet at the park
navik [9.2K]

Answer:

sorry I don't see any graph

Step-by-step explanation:

anyways

Eric's distance + time Mia's distance + time

7 0
3 years ago
Read 2 more answers
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