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alex41 [277]
2 years ago
11

PLS ANSWER, ALL THE QUESTIONS IN THE PICTURE. ITS DUE SOON PLS HELP, SHOW WHO U SET UP EACH PROBLEM .

Mathematics
1 answer:
saul85 [17]2 years ago
4 0

Answer:

3. It's b and c   4. total number of participants in marathon=99+121=220 percentage of female = 121/220×100 =55%   5. the answer is 7

Step-by-step explanation:

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Step-by-step explanation:

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_____________

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REMEMBER THIS

ok
first, make sure that a is 1
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now take 1/2 of b and square it

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x=19
x=-1




answer is -1; 19

2nd choice is answer
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Step-by-step explanation:

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