3 years ago

Area composed figures quiz level G

Mathematics

1 answer:

r-ruslan [8.4K]3 years ago

3 0

I dont get what ur tryna

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What is the 5th term of the expansion of (3x+y^4)^7

chubhunter [2.5K]

9514 1404 393

Answer:

945x^3·y^16

Step-by-step explanation:

The 5th term will be ...

C(7,4)(3x)^3(y^4)^4 = 35·27·x^3·y^(4·4)

= 945x^3·y^16

_____

The coefficients of the expansion are C(n, k) where n is the exponent of the binomial, and k+1 is the term number. This is n!/(k!(n-k)!). The general (k-th) term of the expansion (a+b)^n is C(n, k)a^(n-k)b^(k) where k ranges from 0 to n.

8 0

3 years ago

20 points, please help

Damm [24]

Answer:

The answer to your question is: 83 + 6 $\sqrt{35}$

Step-by-step explanation:

This is a square of a binomial.

(2 $\sqrt{5}$ + 3 $\sqrt{7} )^{2}$

1.- Square of the first term

( 2 $\sqrt{5} )^{2}$ = 4(5) = 20

2.- Twice the product of the two terms

(2)(2 $\sqrt{5} )$ (3 $\sqrt{7} )$ = 6 $\sqrt{35}$

3.- Square of the second term

(3 $\sqrt{7)})^{2}$ = 9(7) = 63

4.- Write the solution

20 + 6 $\sqrt{35}$ + 63

83 + 6 $\sqrt{35}$

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4 years ago

200 ones into standard form

N76 [4]

200 I think that’s it

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4 years ago

Hello please help with this question.

oksian1 [2.3K]

Answer:

Step-by-step explanation:

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3 years ago

Please help ASAP! BRAINLIEST to best/right answer (:

RideAnS [48]

C 87 the median :::::::::::::

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