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cestrela7 [59]
3 years ago
8

Can someone find the slope of these points- (8,20) and (4,61)

Mathematics
2 answers:
tino4ka555 [31]3 years ago
7 0

The equation for a slope is y2 - y1/x2-x1

61-20/4-8

41/-4

Archy [21]3 years ago
7 0

Answer:

The slope -41/4.

Step-by-step explanation:

Slope formula:

\displaystyle \frac{Y_2-Y_1}{X_2-X_1}

\displaystyle \frac{61-20}{4-8}=\frac{41}{-4}=-\frac{41}{4}

Therefore, the slope is -41/4, and the correct answer is -41/4.

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Help asap
Mama L [17]

Answer:

216\pi

Step-by-step explanation:

Given the figure.

And the perimeter in the ratio 4: 2: 1.

Perimeter of smallest circle = 8\pi

To find:

Area of shaded region.

Solution:

To find the area, we need to have radius first.

And radius can be calculated by the given perimeter.

Formula for Perimeter is given as:

Perimeter = 2\pi r

8\pi = 2\pi r\\\Rightarrow r = 4\ cm

Radius of smallest circle = 4 cm

Ratio of perimeter is equal to the ratio of the radii.

Radius of 2nd smallest circle by the given ratio = 8 cm

Radius of largest circle = 16 cm

Area of a circle is given the formula:

A = \pi r^2

Area of the smallest circle = \pi 4^2 = 16\pi\ cm^2

Area of the 2nd smallest circle = \pi 8^2 = 64\pi\ cm^2

Area of the largest circle = \pi 16^2 = 256\pi\ cm^2

Area of the shaded region = Area of largest circle + 2 \times Area of 2nd smallest circle + 3 \times Area of smallest circle - 2 \times Area of smallest circle - 3 \times Area of 2nd smallest circle

Area of the shaded region = Area of largest circle - Area of 2nd smallest circle + Area of smallest circle = 256\pi - 64\pi +16\pi = 216\pi

6 0
2 years ago
2 5/6 times 8 as a mixed number.
kotykmax [81]

Answer:

lets make it an improper fraction:

17/6 x 8/1(consider 8 over 1) = 22 2/3

Simplify first though

17 x 8 divide by 2 = 4

_____

    6 divide by 2 = 3 (8 and 6 are divisible by 2)

Your new simplified multiplication:

17 x 4

_____ then you can do your multiplication across.

   3

7 0
3 years ago
Martha ran a 5-kilometer race in 22.5 minutes what is Martha's unit rate​
IgorLugansk [536]
22.5/5 = 4.5
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