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vitfil [10]
2 years ago
10

Can somebody help me?​

Mathematics
1 answer:
Mashcka [7]2 years ago
6 0

Answer:

6/7

Step-by-step explanation:

because there are 28 properties in all

4 of them are railroads

but we're not looking for the probability of selecting a railroad, which would be 4/28 or 1/7, but for not selecting a railroad

and 24 of them are not railroads

So the probability of not selecting a railroad is 24/28, which simplified/reduced is 6/7

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What is the third term in the binomial expansion of (3x y3)4? 54x2y3 18x2y3 18x2y6 54x2y6.
hjlf

From the simplified form of the expression, the third term on expansion is 54x^2y^6

Given the expression (3x + y^3)^4

  • For binomial expansion, the power of 3x will be decreasing while y^3 will be increasing.

On expansion, the resulting expression will be:

  • =(3x + y^3)^4\\=(3x)^4(y^3)^0 + 4 (3x)^3(y^3)^1 + 6(3x)^2(y^3)^2 + 4(3x)^1(y^3)^3 + (3x)^0(y^3)^4\\

Simplify the result to have:

  • =81x^4+81x^3y^3+54x^2y^6+12xy^9+y^{12}

From the simplified form of the expression, the third term on expansion is 54x^2y^6

Learn more on binomial expansion here: brainly.com/question/13800206

8 0
2 years ago
Most people find that the costs of individual insurance are prohibitively high.
zepelin [54]
The answer is true.
7 0
3 years ago
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What is the image of (-9,3)(−9,3) after a reflection over the y-axis?
nirvana33 [79]

Answer:

(9, 3 )

Step-by-step explanation:

under a reflection in the y- axis

a point (x, y ) → (- x, y ) , then

(- 9, 3 ) → (9, 3 )

3 0
2 years ago
I need help its for 7th grade math​
Oliga [24]

Answer:

4:20

Step-by-step explanation:

because there are 20 teachers in all and 4 science teachers so your chances of getting a science teacher are 4 out of 20

5 0
3 years ago
Write an equation in point-slow form for the line through the given point with the given slope.
timofeeve [1]
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3 years ago
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