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ollegr [7]
3 years ago
15

What number must each side of the equation

Mathematics
1 answer:
zysi [14]3 years ago
7 0
<span>1. What number must multiply each side of the equation 2/5 x=10 to produce the equivalent equation x = 25? 4 5 5/2 1/5 2. Solve. -1/3 x=12 4 –36 –1/4 –4 3.Solve. 3|s| = 18 s = –6 or s = 6 s = 6 only s = –18 or s = 18 s = –6 only 4.Solve. x + 4 – 7x =...</span> show more Best Answer:<span>  </span><span>C 
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</span>
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What is the z-score of a newborn who weighs 4,000 g?.
vagabundo [1.1K]

The z-score of the considered newborn having 4,000 g weight is \dfrac{4000 - \mu}{\sigma}

<h3>How to get the z scores?</h3>

If we've got a normal distribution, then we can convert it to standard normal distribution and its values will give us the z score.

If we have

X \sim N(\mu, \sigma)

(X is following normal distribution with mean \mu and standard deviation  \sigma)

then it can be converted to standard normal distribution as

Z = \dfrac{X - \mu}{\sigma}, \\\\Z \sim N(0,1)

(Know the fact that in continuous distribution, probability of a single point is 0, so we can write

P(Z \leq z) = P(Z < z) )

Also, know that if we look for Z = z in z tables, the p value we get is

P(Z \leq z) = \rm p \: value

For the considered case, the statement in the problem is missing the mean weight of the newborn and standard deviation of the data set of weights of newborn.

Thus, for them, we can consider variables in place of their actual values.

Let we have:

  • X = weights of newborns for some considered system (in grams)
  • \mu = mean weight of newborns (in grams)
  • \sigma = standard deviation of the data set of weights of newborns

Then, the z-score for X = 4000 is

z = \dfrac{x - \mu}{\sigma} = \dfrac{4000 - \mu}{\sigma}

Thus, the z-score of the considered newborn having 4,000 g weight is \dfrac{4000 - \mu}{\sigma}

Learn more about z-scores here:

brainly.com/question/13299273

3 0
2 years ago
The value of a collectable car has been increasing by 4 percent each year. This year the car is valued at $15,200. Write a funct
zloy xaker [14]

Answer:

I think it would be

t(15,200)¹'⁰⁴

I used an apostrophe up there, but it's supposed to be a dot, so to the power of 1.04

5 0
2 years ago
On a number line 1.77 would be located where?
Bezzdna [24]

Step-by-step explanation:

1.77 would be closer to 2

3 0
2 years ago
Mr. Krueger wanted a square platform built in the drama room at
Aneli [31]

Answer:

Building a square platform for Mr. Krueger in the drama room at school:

The carpenter can use the Square Root Function to determine the side length of the square platform.

Step-by-step explanation:

The square root of the desired area of the platform, which had been provided to the carpenter will give the side length of the square platform because area of a square is equal to side length squared (L²).  If the area is ascertained, to determine the length will be to get the square root of the area.  

8 0
3 years ago
What is the value of -5(m - 2) when m = -1
Lana71 [14]
-5(-1-2)
5+10
15

Or

-5(-1-2)
-5(-3)
15

It's 15 either way.
7 0
3 years ago
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