2 years ago

The diameter of a circle measures 20 yd. What is the circumference of the circle?

Mathematics

1 answer:

Pani-rosa [81]2 years ago

5 0

Answer: 62.8 yd

Step-by-step explanation:

Circumference= diameter*pi

20*3.14= 62.8

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2 years ago

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2.33

Step-by-step explanation:

7 divided by 3 will equal 2.33

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2 years ago

A two-liter cola costs $1.19 and 6 cans each containing 16 oz cost $1.59. Which is the better buy and by how much?

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3 years ago

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Simplify the expression (8n^4-6n+8n^2)+(6n^4-4)

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Answer:

(8n^4-6n+8n^2)+(6n^4-4)

8n^4 + 8n^2 - 6n + 6n^4 - 4

Step-by-step explanation:

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2 years ago

Among 9 electrical components exactly one is known not to function properly. If 3 components are randomly selected, find the pro

kozerog [31]

Answer:

P=0.66

Step-by-step explanation:

We know that Among 9 electrical components, exactly one is known not to function properly. If 3 components are randomly selected.

We calculate the probability that all selected components function properly.

We calculate the number of possible combinations:

$C_3^9=\frac{9!}{3!(9-3)!}=84$

We calculate the number of favorable combinations:

$C_3^8=\frac{8!}{3!(8-3)!}=56$

Therefore the probability is:

$P=\frac{56}{84}\\\\P=0.66$

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3 years ago