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1 year ago

The diameter of a circle is 62cm

2 answers:

8 0

Answer is 3017.5 cm^2
Reason

We know diameter is 62
Radius (r) is 1/2 of diameter so r=31

Formula for area
A= pi r^2
Fill in what we know
A= (3.14) (31^2)
Multiply
A=3017.54
Round to 1 dp
A= 3017.5

Maksim231197 [3]1 year ago

7 0

Step-by-step explanation:

Area = 22/7¥r²

Area = 3.14 × 31cm × 31cm

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A line has a slope of 5 and passes through the point (-1,2).

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Answer:

Step-by-step explanation:

slope=m= 5

points=(-1,2)

By point-slope form:

$y$ - $y_{1}$ =m( $x-x_{1}$ )

Substitute the values in formula:

y-2=5(x+1) (It is the point slope form)

Now,

Slope intercept form:

y-2=5x+5

y=5x+5+2

y=5x+7

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