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Ostrovityanka [42]
2 years ago
10

Find the radius of a circle with area 49​

Mathematics
1 answer:
lesya [120]2 years ago
5 0

Answer:

r≈3.95

Step-by-step explanation:

Using the formula

A=πr^2

Solving for r

r=A

π=49

π≈3.94933

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Find the difference of 8xand twice the sum of x and 7.
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Answer -

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Find the slope between the two points given. Then, use the slope and one of the points to write the
IrinaVladis [17]

Answer:

The slope is -2

y =-2x - 1

Step-by-step explanation:

The slope is -2 or -2/1.

The slope is the change in y over the change in x.  The ordered pair is written in the form (x,y)  The first number is the x coordinate and the second number is the y coordinate.

(1, -3) (0, -1)  The -1 and the -3 are the y coordinates.  We subtract these.

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(1, -3) (0, 1,) the 1 and the 0 are the x coordinates.  We subtract these

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The change in y is 2 and the change in x is -1, so our slope is -2/1 which is the same as -2.

To write the equation we need the slope and the y intercept.  We have the slope now.  We need to find the y-intercept.  We will use the slope and one of the points to find the y-intercept.  It does not matter which of the two points (1,-3) or (0,-1).  I will use (0,-1)

y = mx + b The b is the y-intercept which is what we are looking for

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3 0
2 years ago
What would be the answer to writing the equations included in the same set of related facts as 6×8=48
larisa [96]
Included in the same facts
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Answer:

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Step-by-step explanation:

3 0
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