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If the diameter is 16 and the radius is 8 what do you do next?????

Help Me Please I need to get this right if i dont i might die! No I wont but i need your help about this or i get a F On it

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I am assuming you are looking for the most usual answer required by the measurements given.the simplest one is to find out the area of a circle once you know it's radius.
the formula is Pi x radius (squared) Pi is always constant so
3.1417 x 8 to the power of 2 OR 3.1417 x 8 x 8= 201.6 square inches.

Posted on Apr 02, 2015

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Is diameter is 3000km and the mass is 16 times the mass of the sun, what is the density of the disk


Hi,

Density is mass divided by volume.

Mass of the Sun is 1.989E30 kg, in exponential notation, where we have to move the decimal, in this case, 30 places to the right.

16 times the mass of the sun is 31.824E30 kg or 3.1824E31 kg.

Volume of the disk is 4/3 pi r ^ 3, where ^ means raised to the power of.

First, we have to take the diameter of 3000km and divide by 2 to get a radius of 1,500km. I get a volume of 14137166941.15 or 1.4137E10 km^3.

Now, dividing the mass by the volume, we get the density.

Good luck.

Paul

Jun 06, 2015 | Office Equipment & Supplies

1 Answer

Formula for circumference


Circumference of a Circle: 2 x pi x radius - OR - pi x diameter,

or if you need some sphere calculations?

Sphere Surface Area: 4 X pi X radius squared OR
pi X diameter squared Sphere Volume: 4/3 X pi X radius cubed OR
( pi X diameter cubed ) / 6
By the way.......... "pi" = 3.1415926536




f098d442-6e69-493e-8854-abe08bc70bfa.jpg

Apr 29, 2014 | Office Equipment & Supplies

1 Answer

I need to determine the cubic feet in a cylinder that has a circumference of 34'8" and a height of 16'2.5"


About 1700 cubic feet.

Since you know the circumference, calculate the diameter by dividing it by pi.

Feb 17, 2014 | Office Equipment & Supplies

1 Answer

Can 215/65/16 tires on a 1999 Caravan be swapped for 205/60/16 tires?


Yes, you'll be o.k. They don't recommend anything over 3% difference, and your at about 1.8%. Speedo will read 61 mph when actually doing 60 mph. Have a look.

Stock Tire - 215/60R16 >Search Tires Tire 1 - 205/60R16 >Search Tires Section Width: 8.46 in 215 mm Section Width: 8.07 in 205 mm Rim Diameter: 16 in 406.4 mm Rim Diameter: 16 in 406.4 mm Rim Width Range: 5.5 - 8.5 in Rim Width Range: 5.5 - 7.5 in Overall Diameter: 26.15 in 664.21 mm Overall Diameter: 25.68 in 652.27 mm Sidewall Height: 5.07 in 128.77 mm Sidewall Height: 4.84 in 122.93 mm Radius: 13.07 in 331.97 mm Radius: 12.84 in 326.13 mm Circumference: 82.15 in 2086.6 mm Circumference: 80.67 in 2049.0 mm Revs per Mile: 795.4 Revs per Mile: 809.9 Actual Speed: 60 mph 100 km/h Speedometer1: 61.0 mph 101. km/h Speedometer Difference: - Speedometer Difference: 1.822% too fast Diameter Difference: - Diameter Difference: 1.8%

Nov 07, 2010 | 1999 Dodge Caravan

1 Answer

What kind of dado blade can I use on my craftsman 10 inch table saw model no. 137.248100/ with stand


You have a 5/8" diameter arbor. You can use any dado blade that will fit. That said here's a few things to bear in mind.

8" diameter dado stacks are pretty standard for 10" contractor table saws. A dado stack is typically about 13/16" wide at most. It makes sense that the wider your blade is, the more power it takes to cut through the wood.

If you were to use the full width capacity of your Dado stack (13/16") a 10" diameter stack would bog down. A 8" stack has a faster rotation at the cutting edge because of its smaller radius. So, you don't bog down when you're making a wider cut if you use a smaller diameter.

If your machine was really underpowered, you could go down to a 6" stack which would cut your power requirements even more, but limits the depth of cut.

If this post was helpful, please vote. Thanks.

Mar 28, 2010 | Craftsman 10" Table Saw

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SUM 5/16 INCH 7/8 INCH


I DONT REALY UNDERSTAND THE QUESTION BUT --- 5/16 + 7/8 = 1 3/16 0F AN INCH OR
AN INCH AND THREE SIXTEENTH OF AN INCH
DOES THAT HELP ?

Nov 17, 2009 | Bosch 85414M 7/8 Inch Diameter 5/16 Inch...

2 Answers

What is the radius of a 30'' pipe


30" diameter? Radius is 15" (half of diameter).

30" circumference (distance around) is a little more complicated...

The number pi.gif is the ratio of the circumference of a circle to the diameter. The value of pi.gif is approximately 3.14159265358979323846...The diameter of a circle is twice the radius. Given the diameter or radius of a circle, we can find the circumference. We can also find the diameter (and radius) of a circle given the circumference. The formulas for diameter and circumference of a circle are listed below. We round pi.gif to 3.14 in order to simplify our calculations. diam_formula.gif circum_formula.gif

Nov 17, 2009 | Gateway FPD1975W 19" LCD Monitor

1 Answer

Will 23575R16 fit as a rplacement of my 2004 grand cherokee


Stock Tire - 225/75R16 >Search Tires Section Width: 8.85 in 225 mm Rim Diameter: 16 in 406.4 mm Rim Width Range: 6 - 7 in Overall Diameter: 29.28 in 743.71 mm Sidewall Height: 6.64 in 168.65 mm Radius: 14.64 in 371.85 mm Circumference: 91.98 in 2336.2 mm Revs per Mile: 710.3info from 1010tires.com

Oct 23, 2009 | 2004 Jeep Grand Cherokee

1 Answer

A pool with a radius of 2.5 metres surrounded by a path 0.8 metres wide what is the perimetee of the pool .using the value of 3.142


Hello,
You must have been taught the relation between the circumference (perimeter) of a circle, the radius and pi. Use it to calculate the perimeter. It is true for all circular figure.
Depending on what is really asked (the perimeter of the actual pool where you find the water, or the general pool area where no shoes are allowed)
1st case: use the radius that was given.
2nd case: the total radius is the radius given plus the width of the path.

If you do not have a formula for the perimeter that involves the radius, but have one that involves the diameter you can use it too, knowing that the diameter is twice the radius or the radius is one half of the diameter.

As you might have guessed I was not going to make things too easy for you by providing a ready-made answer, but I gave you all the hints that will help you solve the problem.

Oct 11, 2009 | Mathsoft StudyWorks! Mathematics Deluxe...

2 Answers

Example of program in c++ and there code


Hello my friend, I am Jonas I work as a programmer in some various programming languages. Here try this code:
This program is design to output the Diameter, circumference, and area given a radius of a circle. #include <iostream.h> int main() { int radius, diameter, circumference, area, pi; cout << " Enter the radius of a circle\n"; cin >> radius; pi = 3.14159; diameter = 2 * radius; circumference = 2 * pi * radius; area = pi * (radius)^2; cout << "Diameter formula executing.....(2 x r)\n"; cout << "Diameter is " << diameter << endl; cout << "circumference formula executing.....(2 x pi x r)\n"; cout << "circumference is " << circumference << endl; cout << "area formula executing......(pi x [r x r])\n"; cout << "area is " << area << endl; return 0; }
Also if you need tutorial you can visit this site Learning C++ .Hope this solution will able to help your problem solved. If you need more assistance just reply to this post or send me a mail at geo_jonas@yahoo.comThank you and Godbless.

Jul 09, 2009 | Computers & Internet

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