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galina1969 [7]
3 years ago
11

How to simplify the expression 8m/12mn ?? Algebra

Mathematics
1 answer:
DENIUS [597]3 years ago
4 0
According to BODMAS and the way you have presented your expression:

8*m/12*m*n

=8*(m/12)*m*n

=(8m²n)/12

=2/3m²n
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A circle is placed in a square with a side length of 18 mm, as shown below. Find the area of the shaded region.
finlep [7]
Answer: the shaded region = 69.66mm^2

Explanation:
Assume shaded region is X
Then :
X + Area of circle = area of square
X = area of square - area of circle

Find area of square:
Side length = 18mm
Area = 18 x 18 = 324

Find area of circle:
Side length of a square = the diameter of the circle = 18mm
And r(radius) = d/2 = 18/2 = 9
Area = pi x 9^2 = 254.34

Now find X
X = 324 - 254.34 = 69.66
3 0
3 years ago
How to solve for x and y?
BlackZzzverrR [31]
(2x-y)+(3y-x) = 2y+X = 25
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25/3 * 2 = 50/3 = 2y


x = 25/3
y = 25/3

Hope this helps! :)
4 0
3 years ago
The sector of a circle is shown below. It has a radius of 10 centimeters and a central
disa [49]

Answer:

1) 8.9 cm

2) 44.5 cm^2

Step-by-step explanation:

a) we want to calculate the length of the arc

Mathematically, we use the formula for the length of an arc

That will be ;

theta/360 * 2 * pi * r

theta = central angle = 51

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so we have ;

51/360 * 2 * 22/7 * 10 = 8.9 cm

2) The area of the sector is;

theta/360 * pi * r^2

51/360 * 22/7 * 10^2

= 44.5 cm^2

5 0
3 years ago
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FrozenT [24]

Step-by-step explanation:

One gallon = 25 miles

8 gallon= 25×8 miles= 200 miles

4 0
3 years ago
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