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2 years ago

What is the constant of proportionality in the equation y = 5/3x?

Mathematics

1 answer:

djyliett [7]2 years ago

4 0

Answer:

x = 98

Step-by-step explanation:

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A poll agency reports that 75% of teenagers aged 12-17 own smartphones. A random sample of 234 teenagers is drawn. Round your an

GalinKa [24]

Answer:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

Step-by-step explanation:

If our random variable of interest for this case is X="the number of teenagers between 12-17 with smartphone" we can model the variable with this distribution:

$X \sim Binom(n=234, p=0.75)$

And the mean for this case would be:

$E(X) =np = 234*0.75= 175.5$

And the standard deviation would be given by:

$\sigma =\sqrt{np(1-p)}= \sqrt{234*0.75*(1-0.75)}= 6.624$

3 0

3 years ago

PLEASE HELP WILL GIVE BRAINLIEST

puteri [66]

Answer:

22.5

Step-by-step explanation:

You just have to do 60 divided by 2.66 (The decimal form of 2/3) and then you have your answer PLEASE BRAINLIEST

5 0

2 years ago

Read 2 more answers

Solve this equation 6(4.5y-12)=9

irinina [24]

6(4.5y - 12) = 9

(4.5y - 12) = 9/6

4.5y - 12 = 1.5

4.5y = 1.5 + 12

4.5y = 13.5

y = 13.5/4.5

y = 3

6 0

3 years ago

WILL GIVE BRAINLIST i cant remember how this one goes at all

SOVA2 [1]

Answer:

B' = (-2,2)

Step-by-step explanation:

So to solve this you need to find the current coordinates of B.

B = (-5,4)

So it says the translation is (x+3, y-2)

Let us substitute in the values

(-5 + 3, 4 - 2)

So the new coordinate is

(-2,2)

3 0

3 years ago

Read 2 more answers

Select the correct answer.

My name is Ann [436]

Answer:

Step-by-step explanation:

7 0

3 years ago

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