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Reika [66]
3 years ago
6

What is the approximate area of a sector of a circle with a radius of 8 cm, and a minor arc of 70 degrees?

Mathematics
1 answer:
oee [108]3 years ago
5 0

Answer:

39.0953=39cm2

Step-by-step explanation:

Minor arc =70

Angle of arc=70

Then this sector =70/360=7/36 of the circle

Then area = 7/36x3.14x8x8=39cm2 approximatly

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Help please...Thanks
Maru [420]
There are 14 boys, therefore 16 girls.
Ratio of boys:girls is 14:16
14/16 = 7/8 so answer is the 3rd option.
4 0
3 years ago
The formula for density is d = m/v,
Mekhanik [1.2K]

Answer:

Kg per cm

or

Kilograms per cubic meter

Step-by-step explanation:

This formula can be represented as something similar to miles per hour (or kilometers per hour). Looking at the fraction will eventually give you the distance for every hour once it its fully simplified.

Use this problem as an example. d=4/2 where 4 means kilograms and 2 means cubic meters. Once fully simplified to 2/1 you can say there is 2 kilograms per cubic meter which is considered your volume.

4 0
3 years ago
Find an equation of a line with m=-3/8 passing through (3,4)
olga nikolaevna [1]

Answer:

y=\frac{-3}{8}x + 5\frac{1}{8}

Step-by-step explanation:

We are given;

  • The slope of a line as -3/8
  • A point through which the line passes through (3, 4)

We are required to determine the equation of the line.

  • Note that one way we can get the equation of a line is when we are given its slope and a point through which it passes through.

In this case;

m = -3/8

A point (3, 4)

We will take another point (x, y)

Therefore;

\frac{y-4}{x-3}=\frac{-3}{8}

We get;

8(y-4)=-3(x-3)

8y-32=-3x+9

Combining the like terms;

8y=-3x+9+32

8y=-3x+41

y=\frac{-3}{8}x+5\frac{1}{8}

Thus, the equation of the line is y=\frac{-3}{8}x + 5\frac{1}{8}

7 0
3 years ago
Please help me with this math problem!! NO LINKS PLEASE!! IT'S DUE TONGIHT AT 11:59PM!! :)
prisoha [69]

Answer:

∆L = 51°

∆Y = 28°

∆B = 101°

∆U = 51°

UG = 10.66666

BG = 4x

6 0
2 years ago
Student council selling tickets for the eighth-grade dance at seven dollars each. They had to pay the $400. If they sell 75 tick
Vadim26 [7]
$7 x 75= $525
Since they had to pay the $400
$525-$400= $125 for decorations
3 0
3 years ago
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