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2 years ago

Divide thirty-one point five by ten

Mathematics

2 answers:

Nutka1998 [239]2 years ago

5 0

3.15 will be your answer i am very sure of that

Semenov [28]2 years ago

5 0

If you were to divide 31.5 by 10, then the sum would be 3.15

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I need to know the answer to 2 1/3 x 4/5

Sever21 [200]

Answer:

Simplify the expression.

Exact Form:

28/15

Decimal Form:

1.8¯6

Mixed Number Form:

1 13/15

Step-by-step explanation:

7 0

3 years ago

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8 is 1 tenth of what number

Elenna [48]

Answer:

Step-by-step explanation:

You can figure this out by creating an equation:

1/10 x=8 (This shows that 8 is 1/10 of number x)

x=80 (Solve the equation by multiplying by ten)

4 0

3 years ago

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How to find the hypotenuse of a right angled triangle using trigonometry?

Ghella [55]

It depends on whether you have "Perpendicular" or "base"
If you have perpendicular then, you can use the formula:
sin Ф = P / H

If you have base then, you can use the formula:
cos Ф = B/ H

Hope this helps!

4 0

3 years ago

The object below was made by placing a cone on top of a cylinder. The base of the cone is congruent to the base of the cylinder.

Ber [7]

Answer:

Part 1) The volume of the object is $32\pi\ cm^{3}$ or $100.48\ cm^{3}$

Part 2) see the procedure

Step-by-step explanation:

<u><em>The picture of the question in the attached figure</em></u>

Part 1) What is the volume, in cubic centimeters, of the object?

we know that

The volume of the object is equal to the volume of the cylinder plus the volume of the cone

Find the volume of the cone

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2} h$

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=3\ cm$

substitute the values

$V=\frac{1}{3}\pi (2^{2})(3)=4\pi\ cm^{3}$

Find the volume of the cylinder

The volume of the cylinder is equal to

$V=\pi r^{2} h$

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=(10-3)=7\ cm$

substitute the values

$V=\pi (2^{2})(7)=28\pi\ cm^{3}$

Part 2) Then explain how you found the volume of the total shape

The volume of the total shape is equal to the volume of the cylinder plus the volume of the cone

$4\pi\ cm^{3}+28\pi\ cm^{3}=32\pi\ cm^{3}$ ------> exact value

Find the approximate value of the volume

assume

$\pi=3.14$

$32(3.14)=100.48\ cm^{3}$

7 0

3 years ago

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tom was using wire of the following thicknesses .33mm , .275mm, .25mm, .3mm for some electrical work. order the wire from thicke

Lena [83]

Thickest to thinnest....
0.33m , 0.3mm, 0.275mm, 0.25mm

5 0

3 years ago