Step-by-step answer:
We are looking at the coefficient of the 22nd term of (x+y)^25.
Following the sequence, first term is x^0y^25, second term is x^1y^24, third term is x^2y^23...and so on, 22nd term is x^21y^4.
The twenty-second term of (x+y)^25 is given by the binomial theorem as
( 25!/(21!4!) ) x^21*y^4
=25*24*23*22/4! x^21y^4
= 12650 x^21 y^4
The coefficient required is therefore 12650, for a binomial with unit valued coefficients.
For other binomials, substitute the values for x and y and expand accordingly.
Question would have been more clearly stated if the actual binomial was given, as commented above.
Answer:
(4,-6)
Step-by-step explanation:
Answer:
43%
Step-by-step explanation:
The equation which relates the change in price per sticker purchased is y = 2.05x
- The number of stickers purchased = 10
The change in price per sticker purchased can be expressed as :
- Price change / number of stickers
- Change in price per sticker = $20.50 / 10
- Change in price per sticker purchased = 2.05
Therefore, the required equation which related y and x is :
y = 2.05x
Learn more :brainly.com/question/13218948
To get your answer:
9 times 5 times two= 90
9 times 7.5 times two= 135
5 times 7.5 times two= 75
then add all of them together and you will get the surface area
90+135+75=300
you should have an answer of 300 feet²
