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Anestetic [448]
3 years ago
7

HELP WITH 20 PLEASE!

Mathematics
1 answer:
WINSTONCH [101]3 years ago
6 0


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Question from Amanda, a parent:

what is the area of a circle with a circumference of 3000 metres?


Amanda,

The area of a circle is given by the formula A = π r2, where A is the area and r is the radius. The circumference of a circle is C = 2 π r.

If we "solve for r" in the second equation, we have r = C / (2 π ). Now we use this to replace r in the first equation: A = π [ C / (2 π ) ]2.

When we simplify this, we get A = C2 / (4 π).

Now you can put your value of C into this equation and find A. Remember, π is about 3.1416.
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Step-by-step explanation:

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Is 15 a repeating decimal
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Answer: YES!

Step-by-step explanation:

The greatest common factor (GCF) of 1 and 15 is 1. Convert 1/15 to its simplest form by dividing the numerator and denominator by its GCF

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2 years ago
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4 years ago
Put the following equation of a line into slope intercept form, simplifying all fractions. 8x+10y=-30
Mama L [17]

The slope-intercept form of the given equation ( 8x 10y=-30 ) is y = (-4/5)x - 3.

<h3>What is the slope-intercept form of the given equation?</h3>

The slope-intercept form is expressed as;

y = mx + b

Where m is the slope and b is the y-intercept.

Given the equation in the question;

8x + 10y = -30

To convert to slope intercept form, we make y the subject of the formula and simplify.

8x + 10y = -30

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10y/10 = -8x/10 - 30/10

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Therefore, the slope-intercept form of the given equation ( 8x 10y=-30 ) is y = (-4/5)x - 3.

Learn more about slope and y-intercept here: brainly.com/question/19824331

#SPJ1

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