3 years ago

Binomial theorem to expand (x+4)^4

Mathematics

1 answer:

Lilit [14]3 years ago

6 0

Answer:

Step-by-step explanation:

(x+4)^2.(x+4)^2

= x^4 +16x^3+96x^2+256x+256

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Jay wants to buy 4 shirts which were originally priced at $15.95 each. He purchased the 4 shirts at a 20% off sale and pays a 6.

Murrr4er [49]

Answer:

I think its $32.50

Step-by-step explanation:

15.95 * 4 = 63.8

63.8 / 1/5 = 12.76

20% = 1/5

319 + 6 1/2 = 32.50

6 0

3 years ago

A) 75YARDS B) 85 YARDS C)80 YARDS D) 90 YARDS

Amanda [17]

Answer:

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I think it's 85 yards

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3 years ago

Find the sumofthe geometrical progression of five terms, of which the first term is 7 and the multiplier is 7.Verify that the su

777dan777 [17]

Answer:

The sum of first five term of GP is 19607.

Step-by-step explanation:

We are given the following in the question:

A geometric progression with 7 as the first term and 7 as the common ration.

$a, ar, ar^2,...\\a = 7\\r = 7$

$7, 7^2, 7^3, 7^4...$

Sum of n terms in a geometric progression:

$S_n = \displaystyle\frac{a(r^n - 1)}{(r-1)}$

For sum of five terms, we put n= 5, a = 7, r = 7

$S_5 = \displaystyle\frac{7(7^5 - 1)}{(7-1)}\\\\S_5 = 19607$

The sum of first five term of GP is 19607.

Verification:

$2801\times 7 = 19607$

Thus, the sum is equal to product of 2801 and 7.

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3 years ago

What is the inequality for -8x>48

Naily [24]

Answer: x<−6

Step-by-step explanation:

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3 years ago

PLEASE HELP, I’m confused. I don’t know how to do this stuff... explain your answer. Thank you!!!!

Maurinko [17]

Answer:

C) y = 2x + 3

Step-by-step explanation: You have to substitute 1 for x & 5 for y & 2 for m, but 1st do the point slope form ---> slope intercept form.

y -Y1 = m(x - X1)

y - 5 = 2(x - 1)

y - 5 = 2x - 2

+5 + 5

y = 2x + 3 --- IN SLOPE INTERCEPT FORM

Hope this helps you!!! :)

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3 years ago