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aliya0001 [1]
3 years ago
6

I want to know algebra

Mathematics
1 answer:
GarryVolchara [31]3 years ago
5 0

Answer:

ssdfhhhgfhhfhbcfhvzsfb dgg

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Calculate the coefficient of x4y18 in the expansion of (x − y)22
Oksana_A [137]
Binomial theorem:

(x-y)^n=\displaystyle\sum_{k=0}^n\binom nkx^k(-y)^{n-k}

The term with x^4y^{18} corresponds to n=18+4=22 and k=4 (or k=18, since \dbinom nk=\dbinom n{n-k}).

So, the coefficient of this term is

\dbinom{22}4(-1)^{18}=\dbinom{22}4=\dfrac{22!}{4!(22-4)!}=7315
4 0
3 years ago
writing to explain does japera keep the longer books on the top or the bottom shelf? how do you know?
mart [117]
You didn't include any key information that could help solve this problem. What are the lengths of the books and both shelves? 
7 0
3 years ago
Please help, I’ll mark as brainliest.
Crazy boy [7]

Step-by-step explanation:

H(x)=

\frac{f(x)}{g(x)}

If g(x) values =0, h(x) will be undefined.

So f(x)=0, h(x) will be undefined.

Zo find values of f(x) equal 0.

That is when x=2. So the answer to first solution is 2.

h(x) is negative when (-oo, -3) U (2,oo)

4 0
2 years ago
Jace's car used 14 gallons to travel 378 miles. How far can he travel on 13 gallons?
nata0808 [166]

Answer:

351 miles

Step-by-step explanation:

14 gallons for 378 miles  = 1 gallon for 27 miles

1 * 13 gallons = 27 * 13 miles

13 gallons = 351 miles

6 0
2 years ago
skinny Malone has a lot of pets he has 4 more goldfish than Turtles and one less Canary than goldfish six of his pets are birds.
horrorfan [7]
Since 6 are birds and you know he has 2 parakeets, you know he has 4 canarys. He has 5 goldfish since he has one less canary then goldfish. He has 1 turtle since he has 4 more goldfish than turtles.
2 parakeets + 4 canarys + 5 goldfish + 1 turtle = 12 pets
6 0
4 years ago
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