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2 years ago

The radius of a circle is doubled. How does the area change?

Mathematics

1 answer:

ra1l [238]2 years ago

8 0

Answer:

Area increases by a factor of 4

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr²

If the radius is doubled, that is r = 2r, then

A = π(2r)² = 4πr²

Hence the area has been increased by a factor of 4

You might be interested in

What is equal to 2/3

vovangra [49]

Some fractions that are equal to 2/3 are: 4/6 and 6/9

(You just have to multiply the numerator and denominator by the same number.)

Decimal: 0.666...

(Divide the numerator by the denominator.)

Percent: 66.6%

(Multiply the decimal by 100.)

<em>Hope it helps</em> :)

6 0

3 years ago

Read 2 more answers

Suppose you have a standard deck of 52 cards. What is the probability that if you select a card at random that it does not have

mr Goodwill [35]

0.92

Step-by-step explanation:

There are 4 cards in a deck of 52 cards that has a face value of 3. That means that the other 48 cards don't have a face value of 3. Therefore, the probability of picking a card of this deck that doesn't have a face value of 3 is

$P =\dfrac{48}{52} = 0.92$

4 0

2 years ago

Simplify -5^5 ÷ -5^-6

Tpy6a [65]

Answer:

5^11

Step-by-step explanation:

-5^5 ÷ -5^-6

5^5 divide 5^-6

5^11

5 0

2 years ago

Am I right or wrong plz answer

Dvinal [7]

Wrong because you need to add the -2 to the 8.... I hope this helps

4 0

3 years ago

PLSS HELP ME WITH THIS

kolbaska11 [484]

Answer:

127

Step-by-step explanation:

400+1495=1895

1895/15=126.333333333

8 0

2 years ago