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mina [271]
3 years ago
5

What is the constant of proportionality in the equation y=3xy=3xy, equals, 3, x?

Mathematics
1 answer:
snow_lady [41]3 years ago
6 0

Answer:

k=3

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In this problem we have

y=3x

therefore

The constant of proportionality  is k=3

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A 95% confidence interval for a population proportion was constructed using a sample proportion from a random sample. Which of t
liraira [26]

Answer:

All but last statement are correct.

Step-by-step explanation:

  • <em>If we were to use a 90% confidence level, the confidence interval from the same data would produce an interval wider than the 95% confidence interval.</em>

True. Confidence interval gets wider as the confidence level decreases.  

  • <em>The sample proportion must lie in the 95% confidence interval. </em>

True. Confidence interval is constructed around sample mean.

  • <em>There is a 95% chance that the 95% confidence interval actually contains the population proportion.</em>

True. Constructing 95%. confidence interval for a population proportion using a sample proportion from a random sample means the same as the above statement.

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5 0
3 years ago
Math question shown below question and graph
Mekhanik [1.2K]

Answer:

The graph would look something like this...

Step-by-step explanation:


4 0
3 years ago
Please help fast! A=?
MrMuchimi

Answer: 77 degrees

Step-by-step explanation:

By the law of sines,

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7 0
3 years ago
It takes 15 men working steadily 4 days to dig the foundation for a new apartment. how many days would it have taken 25 men work
andre [41]
By proportion that would be  15/25  * 4  =  2.4 days
3 0
3 years ago
1. -4(x + 3) = 8<br> +<br> = 8<br> +<br> = 8<br> =<br> X<br> X=
Tema [17]

Hello! :)

1.-4(x+3)=8

-4(x+3)=8

(x+3)= -2

x=(-5)

☆GOOD LUCK!☆  

5 0
3 years ago
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