abeigailshelton528 abeigailshelton528

02-02-2018
Mathematics

contestada

How many three-letter "words" can be made from 9 letters "fghijklmn" if repetition of letters (a) is allowed?

Respuesta :

arthurzhang2006 arthurzhang2006

02-02-2018

729. You just do 9 to the power of 3 or 9^3 and you will get 729. If it is not allowed, the answer is 504.(9 x 8 x 7)

Answer Link

Otras preguntas

how is the difference 14/15-5/12 written as a decimal?

29 Which compounds are classified as Arrhenius acids?(1) HCl and NaOH (2) HNO3 and NaCl (3) NH3 and H2CO3 (4) HBr and H2SO4

Mr Johnson is currently four times as ols as his son, David. If Mr. Johnson was 46 years old two years ago, how old is David now?

Reagan’s economic revolution was based on the simple fact that: a. government must create jobs c. private industry should create jobs b. high corporate taxes sh

following reconstruction, the passage of jim crow laws in the south limitied the effectiveness of

A teacher who takes time to recapitulate a lecture is giving a a. reward. c. summary. b. critique.

last weekend, 5% of the tickets sold at SeaWorld were discount tickets. If SeaWorld sold 60 tickets in all,how many discount tickets did it sell? Use the percen

Lauren ran for 45 minutes and traveled 3miles what is her rate per miles

what is the middle stone age called

21 Given the balanced equation representing a reaction:O2 --> O + O What occurs during this reaction? (1) Energy is absorbed as bonds are broken. (2) Energy