2 years ago

Please hurry please!

Mathematics

1 answer:

beks73 [17]2 years ago

3 0

Answer:

Step-by-step explanation:

You might be interested in

In the equation (x^2+y)^5, what is the coefficient of the term x^4y^3? what is the coefficient of the same term in the expansion

lys-0071 [83]

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

-------------------------------------------------------------

$\displaystyle
(x^2+y)^n=\sum_{k=0}^n\binom{n}{k}x^{2n-2k}y^k\\
n=5\\
k=3\\\\\binom{5}{3}=\dfrac{5!}{3!2!}=\dfrac{4\cdor5}{2}=10$

It's 10.

----------------------------------------------------

$\displaystyle
(3x^2+y)^n=\sum_{k=0}^n\binom{n}{k}(3x)^{2n-2k}y^k=\sum_{k=0}^n\binom{n}{k}\cdot 3^{2n-2k}\cdot x^{2n-2k}y^k\\\\
n=5\\
k=4\\\\
\binom{5}{3}\cdot3^{2\cdot5-2\cdot4}=10\cdot3^{2}=10\cdot9=90$

It's 90

6 0

3 years ago

PLEASE HELP I’LL GIVE BRAINLIST.

kolezko [41]

Answer:

2/6 is probably your answer

Step-by-step explanation:

5 0

3 years ago

The ratio of vowels to consonants in a word is 5 to 7. Are there more vowels or consonants in the word?

lbvjy [14]

If the ratio is 5-7... this means there are more consonants

3 0

2 years ago

What are the formulas for trigonometry and pythagoras?

jasenka [17]

That's not a good question at all. It's a lot like asking
"What are the statements for News and President Obama ?"

There are at least a hundred formulas that are useful in trigonometry.
One of the most useful is:

In a right triangle, the square of the length of the hypotenuse
is equal to the sum of the squares of the two short sides.

Pythagoras is the name of the ancient Greek mathematician who
discovered that formula. The formula is so useful that it's known
by his name, in his honor.

7 0

2 years ago

find the sum of all possible four digit numbers that can be formed using the digits 2,4,5,6,7 and 8 with no repeated digits

Debora [2.8K]

1+1
2+2
5+0
3+3
6+2-1
4+4

8 0

2 years ago

Read 2 more answers