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LuckyWell [14K]
3 years ago
8

Need help on this please

Mathematics
1 answer:
bija089 [108]3 years ago
5 0
For landing on heads the fraction is 1/2 which is 50%
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4.32 – 9y2 – 20x + 25
konstantin123 [22]

Answer:

−9y ^2 −20x+29.32

Step-by-step explanation:

−9y ^2 −20x+(4.32+25)

−9y ^2 −20x+29.32

8 0
3 years ago
In a survey of 200 publicly-traded companies, the average price-earnings ratio was 18.5 with a standard deviation of 8.2. When t
mamaluj [8]

Answer:

Null Hypothesis: H0:μ ≤ 16.8

Alternative Hypothesis: Ha: μ > 16.8

Step-by-step explanation:

We are told that affer testing the hypothesis (at the 5% level of significance), that the average price-earnings ratio increased from the past value of 16.8.

It means that the past value was not more than 16.8.

This follows that the null hypothesis is given as;

H0:μ ≤ 16.8

And since it has been discovered that the ratio increased from the past value of 16.8, the alternative hypothesis is;

Ha: μ > 16.8

5 0
3 years ago
Urgent. Factor the trinomial by grouping. Please show work. 14x^2y+9xy^2+y^3. If prime, show how you got prime answer.
ch4aika [34]

Answer:

y x (2x +y) x (7x +y)

Step-by-step explanation:

14x^2y + 9xy^2 +y^3

(Factor the expression)

y x (14x^2 +9xy +y^2)

(Rewrite the expression)

y x (14x^2 + 7xy +2xy +y^2)

(Factor the expression)

y x (7x x(2x +y) + y x (2x +y) )

(Factor the expression)

y x (2x +y) x (7x +y)

:))

3 0
3 years ago
What figure was made after connecting the points?
cupoosta [38]
It's not a figure its a letter!(I think) It's the letter 'R'.
7 0
3 years ago
Will give Brainliest!!!<br> What is the y=mx+b for the equation x−y=−8?
mafiozo [28]
First add y on both sides to get x = y-8, then add 8 on both sides to get x + 8 = y. thats really all you can do because you don't have the slope, so it ends up being y = mx+8
8 0
3 years ago
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