All Answers 358514 Answers

2(x-5)<6

2x - 10 < 6 add 10 to both sides

2x < 16 divide both sides by 2

x < 8

Area = Pi x r^2, r=radius

Diameter =2r

Circumference = Diameter x Pi

20 = D x 3.141592

D = 20 / 3.141592

D = 6.366 feet.

r = 6.366 / 2

r = 3.183 feet.

Area =3.141592 x 3.183^2

Area = 31.829 sq. feet - the area of the circle.

What are all the prime numbers in the world?

Maybe you will enjoy this.

Prime numbers are infinite. They go on forever!.

38-2

An Fm radio station broadcast at a freguency of 98.5min. what is the wavelength of the station's broadcast signal?

Use the same formula I gave you:

Wavelength = Speed of light / Frequency

W =3 x 10^8 / 98.5 

[Your frequency of 98.5 MUST be in herz, but not sure if you have it right. Generally speaking, FM Radio Stations broadcast at a frequency in MHz(megaherz), or in millions of herz]

W =3 x 10^8 /98.5 x 10^6

W = ~3 meters - wavelength of the station's broadcast signal.

34+2=36

5! =5 x 4 x 3 x 2 x 1=120

An Fm radio station broadcast at a freguency of 98.5min. what is the wavelength of the station's broadcast signal?

4! = 24 unique ways.

i hate math and like alpacas

Go ahead.

Do you mind if I ask another question?

there are ten ways, i think.

your a big help thank you very much. 

Wavelength=Speed of light/Frequency

W = 3 x 10^8 / 4.80 * 10^17 Hz

W = 6.25 x 10^-10 meters - wavelength of the x-ray.

velocity = frequency * wavelength 

yes thank you, but I'm not sure if I get that. I mean how would I show my work for that?

velocity = frequency * wavelength

what is the wavelength of x rays having a freguency of 4.80 * 10^17 Hz?

the unknown is 7. 21/7=3

What math science question do you have?

Only if you give us a question.

(20nCr0)*(20nCr4)

Put it into the calc as

(20nCr0)=1  you chould know that.      nCn and nC0 is always 1

(20nCr4) put it in the calc as     nCr(20,4)