3 years ago

True or false , help please lol

Mathematics

1 answer:

Ilya [14]3 years ago

8 0

False

I think its false

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Find the area of the circle a-21.98 m2 b-153.86 m2 c-14 m2 d-483.13 m2

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Answer:

B) $153.86 meters^{2}$

Step-by-step explanation:

The formula for the area of a circle is : $\pi *radius^{2}$

The radius of a circle is the length from one side to the centre.

To work this out you would have to multiply pi by the radius of 7 squared, this gives you 153.94, however if using pi as in 3.14, then the answer is 153.86.

1) Multiply pi by 7 squared.

$\pi *7^{2} =153.86 meters^{2}$

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60*7=420
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-2/3- (-3/4) Simplify if needed Brainliest Also, 5/6+5/12

bazaltina [42]

Answer:

$-\frac{2}{3} - (-\frac{3}{4}) = \frac{1}{12}$

$\frac{5}{6} + \frac{5}{12} = \frac{5}{3}$

Step-by-step explanation:

Given

$-\frac{2}{3} - (-\frac{3}{4})$

Required

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$-\frac{2}{3} - (-\frac{3}{4})$

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$-\frac{2}{3} - (-\frac{3}{4}) = -\frac{2}{3} +\frac{3}{4}$

Take LCM

$-\frac{2}{3} - (-\frac{3}{4}) = \frac{-8+9}{12}$

$-\frac{2}{3} - (-\frac{3}{4}) = \frac{1}{12}$

$\frac{5}{6} + \frac{5}{12}$

Take LCM

$\frac{5}{6} + \frac{5}{12} = \frac{10+5}{12}$

$\frac{5}{6} + \frac{5}{12} = \frac{15}{12}$

Divide by 3/3

$\frac{5}{6} + \frac{5}{12} = \frac{5}{3}$

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