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tatuchka [14]
3 years ago
12

What can you tell about the men’s of each distribution? Plsss help I’m stuck I do not want to get a bad grade on this

Mathematics
1 answer:
Vitek1552 [10]3 years ago
3 0

Answer:

c i belive

Step-by-step explanation:

bec why not dude it seems to be self explanatory through the explanation

.

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Hi guys actually I have forgotten the steps do it yesterday my online school opened so I don't how to solve it can you help me p
cestrela7 [59]

Answer:

  (i)  (x +4)^3 = x^3 +12x^2 +48x +64

  (ii)  (2m +1)^3 = 8m^3 +12m^2 +6m +1

  (iii)  (a -2b)^3 = a^3 -6a^2b +12ab^2 -8b^3

Step-by-step explanation:

Powers of a binomial have a pattern. The coefficients of the terms of the expanded product are the numbers in the corresponding row of Pascal's Triangle. Here, you want the 3rd power, so the coefficients of interest are ...

  1, 3, 3, 1

The pattern is ...

  (a +b)^2 = a^2 +2ab +b^2

  (a +b)^3 = a^3 +3a^2b +3ab^2 +b^3

The total of powers of the variable is equal to the exponent of the binomial. The powers of the first variable decrease to 0 while the powers of the second variable increase from zero.

When 'a' or 'b' is something with a coefficient, that whole term is raised to the appropriate power.

__

i) (x+4)^3 = x^3 +3·4x^2 +3·4^2x +4^3

  (x +4)^3 = x^3 +12x^2 +48x +64

__

ii) (2m +1)^3 = (2m)^3 +3·1·(2m)^2 +3·1^2·(2m) +1^3

  (2m +1)^3 = 8m^3 +12m^2 +6m +1

__

iii) (a -2b)^3 = a^3 +3·a^2·(-2b) +3·a·(-2b)^2 +(-2b)^3

  (a -2b)^3 = a^3 -6a^2b +12ab^2 -8b^3

_____

<em>Additional comment on Pascal's triangle</em>

The numbers in each row are the sums of the two numbers immediately above. For binomial expansion, you're only interested in the contents of a row. The "patterns" shown in the attachment are an extra added attraction, not particularly relevant to binomial expansion.

7 0
3 years ago
Help againn!!!!! Will give 15 points
suter [353]

Answer:

1. 8x+10

2. 25x-7

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which of the following is a reflection of y = |x|
pishuonlain [190]

The graph of y=|x| would look like graph A

The reflected graph (mirrored image) would be graph D

5 0
2 years ago
Justin and tyson are beginning an exercise program to train for football season. Justin weighs 170 pounds and hopes to gain 2 po
nataly862011 [7]

At 15 weeks the boys will weigh the same.

8 0
3 years ago
HELP PLS PLS PL SPLSLSSPPS
erma4kov [3.2K]

Answer:

x ≈ 73.3

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos39° = \frac{adjacent}{hypotenuse} = \frac{57}{x} ( multiply both sides by x )

x × cos39° = 57 ( divide both sides by cos39° )

x = \frac{57}{cos39} ≈ 73.3 ( to the nearest tenth )

8 0
2 years ago
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