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2 years ago

Serious answers only please!!!!!!!!!!

Mathematics

1 answer:

Mandarinka [93]2 years ago

8 0

If change from 313 to 533

a) median: It increased by 15

b) mean: It increased by 22

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What is the fourth term in the binomial expansion of (2x – y) 7?

nata0808 [166]

Answer:

$(7C4) (2x)^4 (-y)^{7-4}$

And replacing we got:

$35 (2^4) x^4 (-y)^{-3}$

And then the final term would be:

$-560 x^4 y^3$

Step-by-step explanation:

For this case we have the following expression:

$(2x-y)^7$

And we can use the binomial theorem given by:

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

And for this case we want to find the fourth term and using the formula we have:

$(7C4) (2x)^4 (-y)^{7-4}$

And replacing we got:

$35 (2^4) x^4 (-y)^{-3}$

And then the final term would be:

$-560 x^4 y^3$

8 0

2 years ago

What is the y intercept of the line x -72 -54 -35 y 25 13 1

aleksandrvk [35]

Answer:

can you retype the equation

I think it is not correctly typed

8 0

2 years ago

Solve for x. 9x+4≤58 or 16x−2>3 x 30 x 30

Brrunno [24]

Answer:

wow

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Three times the difference of a number and 2

Anit [1.1K]

Answer:

Step-by-step explanation:

8 0

3 years ago

I can't figure this out.

Leviafan [203]

Answer:

$ 9.5

Step-by-step explanation:

total money is $20

on lunch = 1/8 × 20 = 5/2 = $2.5

on movies = 2/5 × 20 = $8

total spent = 2.5+8 =$ 10.5

left money = 20-10.5 = $ 9.5

7 0

2 years ago