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jonny [76]
3 years ago
10

Use Pascal's Triangle to determine the second term of the expansion of (x - 2)^5

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
8 0

Pascal's triangle up to the 5th iteration is

\begin{array}{cccccc}1\\1&1\\1&2&1\\1&3&3&1\\1&4&6&4&1\\1&5&10&10&5&1\end{array}

This tells us

(x-2)^5=\boxed{1}x^5(-2)^0+\boxed{5}x^4(-2)^1+\boxed{10}x^3(-2)^2+\boxed{10}x^2(-2)^3+\boxed{5}x^1(-2)^4+\boxed{1}x^0(-2)^5

so the second term in the expansion is

5x^4(-2)^1=\boxed{-10x^4}

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Musya8 [376]
I think it's :
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$28 * (x) + $15
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5 0
3 years ago
Explain why three-dimensional graphs can be misleading. What would be a better type of graph to
scoundrel [369]

three-dimensional graphs wouldn´t give you the right information but two-dimensional graphs would give you the actual size of the shape.

6 0
3 years ago
I don’t know how to find X or Y very urgent, need to figure this out how to solve plz help
Lena [83]

Answer:

x = 9

y = 9√3 = 15.6

Step-by-step explanation:

The triangle given is a right triangle, therefore:

✔️apply trigonometric ratio formula to find x:

Reference angle = 60°

Hypotenuse = 18

Adjacent = x

Thus:

Cos (60) = x/18

Multiply both sides by 18

18×cos(60) = x

9 = x

x = 9

✔️find y by applying pythagorean theorem:

y² = 18² - x² (pythagorean theorem)

y² = 18² - 9² (substitution)

y² = 243

y = √243

y = √(81*3)

y = 9√3 = 15.6

3 0
3 years ago
For which of the following displays of data is it not possible to find the mean?
myrzilka [38]

Answer: Histogram

You can eliminate the stem and leaf plot, since it tells you the amount of values.

You can eliminate the dot plot, since it also shows you the number of values.

You can eliminate the frequency table, since it calculates the frequency of a number.

Thus, the answer is the histogram.

8 0
3 years ago
Read 2 more answers
3x^2(4x^3-2x^2+7x-4)
Lunna [17]

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

<h3>>> Given Question :</h3>

3x²(4x³ - 2x² + 7x - 4)

<h3>>> Required Solution :</h3>

12x⁵ - 6x⁴ + 21x³ - 12x²

▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄

6 0
3 years ago
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