If you travel 425 miles on 12.6 gallons of gasoline, how many miles per gallon did your car get? Please explain how you figured
this out
1 answer:
Answer:
Step-by-step explanation:
Lets see... Miles per gallon...Miles/gallon...425 miles/12.6 gallons = 33.73 miles/gallon = 33.73 miles per gallon
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You cannot find the distance it travels, unless you know how far it moves per second.
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Answer:
I think it is 22 but I might be wrong.
Step-by-step explanation:
a can either b 6 or -6.
a = 
Answer: 15
Step-by-step explanation:
(r+1)th term of 
is given by:-
For 
, n= 6
![=\ \dfrac{6!}{4!2!}a^4b^2\ \ \ [^nC_r=\dfrac{n!}{r!(n-r)!}]\\\\=\dfrac{6\times5\times4!}{4!\times2}a^4b^2\\\\=3\times5a^4b^2\\\\ =15a^4b^2](https://tex.z-dn.net/?f=%3D%5C%20%5Cdfrac%7B6%21%7D%7B4%212%21%7Da%5E4b%5E2%5C%20%5C%20%5C%20%5B%5EnC_r%3D%5Cdfrac%7Bn%21%7D%7Br%21%28n-r%29%21%7D%5D%5C%5C%5C%5C%3D%5Cdfrac%7B6%5Ctimes5%5Ctimes4%21%7D%7B4%21%5Ctimes2%7Da%5E4b%5E2%5C%5C%5C%5C%3D3%5Ctimes5a%5E4b%5E2%5C%5C%5C%5C%20%3D15a%5E4b%5E2)
Hence, the coefficient of the third term in the binomial expansion of is 15.
