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olga nikolaevna [1]
2 years ago
12

May I get help on these questions, please?

Mathematics
1 answer:
Virty [35]2 years ago
5 0
Hello! here are the basic rules that you need to know to solve these problems:

a diameter is 2 × the radius
the circumference rule is 2×π×radius

I will solve the first question to show how to format.

1: 5/2=2.5
2×2.5×π=5×π=15.7
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What is the reciprocal of 8/9
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Answer: 1 1/8

Step-by-step explanation:

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Answer:

8/7 x 9/10 is 72/70

7/10 x 9/8 is 63/80

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For all values of x and y, which expression is equivalent to 8x + 6y? A) 2(4x + 3y) B) 2x + 3y C) 3(4x + 2y) D) 4(2x + 3y)
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scoundrel [369]

Answer:

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Answer:

2 pairs of opposite parallel sides is parallelogram

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