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elena55 [62]
4 years ago
9

What is 8.19 divided by 4.2 and show your work

Mathematics
1 answer:
mote1985 [20]4 years ago
7 0
Do long division and you will get 1.95, hope I helped.
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What fraction multiplied by itself is equal to 4/25
olga_2 [115]

Answer:

2/5

Step-by-step explanation:

we see that 2x2=4

and 5x5is equal to 25

so the answer is 2/5

3 0
4 years ago
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The sum of two complementary angles is 90°. For one pair of complementary angles, the measure of the first angle is 15 less than
steposvetlana [31]

let 2nd angle = x

 then 1st angle = 2x-15

 then you have 90 = x + 2x-15

2x +x = 3x

 so now 90 = 3x-15

add 15 to each side

105=3x

x = 105/3 = 35

1st angle = 35 degrees

 2nd angle = 2(35) - 15 = 70-15 = 65


4 0
4 years ago
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Select the correct answer.
Luba_88 [7]

Answer:

The Answer Is A

Step-by-step explanation:

The Harappan civilisation is also called The Indus Valley Civilisation, this is because they built their cities along the Indus river. The reason behind this location can be found in the rest of the "Old World" civilisations like Mesopotamia or Egypt, the first built their cities along the rivers Tigris and Euphrates, the second along the Nil;: their respective civilisations thrived because the overflowing of their respective rivers produced favorable conditions for agriculture, their main support.

5 0
4 years ago
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2xy dx + (x²-2y²) dy=0<br>solve this differential equation​
enyata [817]

Answer:

The solution to the given problem is

3yx² + 2y² = C1

Step-by-step explanation:

Please check below for the required solution for the given problem

5 0
3 years ago
An egg of a particular bird is very nearly spherical. The radius to the inside of the shell is 4 millimeters and the radius to t
igomit [66]

Answer: The volume of shell is 12.8π mm².

Step-by-step explanation:

Since we have given that

Radius to the inside of the shell = 4 milimeters

Radius to the outside of the shell = 4.2 milimeters

Since r changes from 4 mm to 4.2 mm

so, dr=4.2-4=0.2\ mm

As we know that

Volume of shell is given by

\dfrac{4}{3}\pi r^3

dv=\dfrac{4}{3}\pi 3r^2\ dr\\\\dv=4r^2\pi\ dr\\\\dv=4(16)\times 0.2\pi\\\\dv=12.8\pi

So, the volume of shell is 12.8π mm².

4 0
4 years ago
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