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Rainbow [258]
3 years ago
13

3/2 - (1/2) WHAT DOES IT EQUAL IM A LITTERAL IDIOT with steps please

Mathematics
1 answer:
Katen [24]3 years ago
5 0

Answer:

1

Step-by-step explanation:3

For the problem:

3/2  - 1 /2

= ?

The two fractions already have like denominators, so just subtract the numerators:

3/2 – 1/2

= 3 – 1/2

= 2/2

The Greatest Common Factor (GCF) of 2 and 2 is 2. The result can be simplified by dividing both the numerator and denominator by 2.

2/2

= 2/2 ÷ 2/2

= 1

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2 years ago
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3 years ago
A circle has a circumference of 28π centimeters. In terms of π, what is the area of the circle to the nearest square centimeter?
Vadim26 [7]

Hi there!

The formula to find the are of a circle is :

a = \pir²

The formula to find the circumference of a circle is :

c = 2\pir


In order to use the area formula, you need to figure out what the radius (r) is.

If we solve for "r" in the circumference equation, we have :

r = c ÷ (2\pi)


Now we use this to replace "r" in the area formula :

a = \pi ( c ÷ (2\pi))²


When we simplify this we get :

a = c² ÷ 4\pi


Now you can put your value of "c" into this equation and find "a".

*Remember, \pi is about 3.1416.


Solving for "a" :

a = c² ÷ 4\pi

a = 28² ÷ 4\pi


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a = 784 ÷ 4\pi


4\pi = 4 × \pi = 12.56637061435917


a = 784 ÷ 12.56637061435917

a = 62.38873769202297cm²


You need to round to the nearest square centimeter, which means that you need to round to the nearest whole number :

a = 62cm²


There you go! I really hope this helped, if there's anything just let me know! :)

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