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3 years ago

The diameter of a circle is 2 units What is the radius of the circle

Mathematics

2 answers:

guajiro [1.7K]3 years ago

5 0

Answer:

The radius of the circle is 1.

Step-by-step explanation:

The way to find the radius of a circle is to divide the diameter by 2.

Oliga [24]3 years ago

5 0

Answer:

Step-by-step explanation:

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21/24 reduced fraction

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21/24
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Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.

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Answer:

Work out the area of this circle. Take pie to be 3.142 and give your answer to 2 decimal places.

Step-by-step explanation:

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3 years ago

On a drive from one city to another, the person averaged 51 mph. If he had been able to average 72 mph, he would have reached

erica [24]

Answer: 1224 miles

Step-by-step explanation:

Given

the average speed of a person is 51 mph

If speed is increased to 72 mph, he would have reached 7 hr earlier

Suppose d and t be the distance and time taken

$\Rightarrow t_1=\dfrac{d}{51}$

If the speed is 72 mph

$\Rightarrow t_2=\dfrac{d}{72}$

Also, $t_1-t_2=7$

$\Rightarrow \dfrac{d}{51}-\dfrac{d}{72}=7\\\\\Rightarrow \dfrac{1}{51}-\dfrac{1}{72}=\dfrac{7}{d}\\\\\Rightarrow \dfrac{24-17}{1224}=\dfrac{7}{d}\\\\\Rightarrow \dfrac{7}{1224}=\dfrac{7}{d}\\\\\Rightarrow d=1224\ miles$

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3 years ago

How to multiply a thousand number with a hundred number?

rosijanka [135]

Lattice method, or Calculator.

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3 years ago