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Mazyrski [523]
3 years ago
9

Which of the following best describes the expression 4(y + 6)? (2 points)

Mathematics
1 answer:
meriva3 years ago
3 0

I need the following...

4y+24 would be the answer

--v---v

4(y+6) ... To get rid of parenthesis, simply multiply 4 by y, and 4 by 6.

4y+24 is the answer.

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A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 614 babies bo
MissTica

Answer:

The number of newborns who weighed between 1614 grams and 5182 grams was of 586.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The mean weight was 3398 grams with a standard deviation of 892 grams.

This means that \mu = 3398, \sigma = 892

Proportion that weighed between 1614 and 5182 grams:

p-value of Z when X = 5182 subtracted by the p-value of Z when X = 1614.

X = 5182

Z = \frac{X - \mu}{\sigma}

Z = \frac{5182 - 3398}{892}

Z = 2

Z = 2 has a p-value of 0.9772

X = 1614

Z = \frac{X - \mu}{\sigma}

Z = \frac{1614 - 3398}{892}

Z = -2

Z = -2 has a p-value of 0.0228

0.9772 - 0.0228 = 0.9544.

Out of 614 babies:

0.9544*614 = 586

The number of newborns who weighed between 1614 grams and 5182 grams was of 586.

4 0
2 years ago
What are the solutions to the equation -54 + 6x = 0
Sladkaya [172]

Answer:

x=9

Step-by-step explanation:

  1. -54 + 6x  =   6 • (x - 9)
  2. Solve :    6   =  0
  3.  Solve  :    x-9 = 0
  4. Add  9  to both sides of the equation :     x = 9
7 0
3 years ago
Read 2 more answers
mark and his three friends ate out at applebees their bill totaled $52.35 if they left the server a 20% tip how much would each
Katena32 [7]
Each person will pay 15.70
3 0
3 years ago
Read 2 more answers
The sum of three times a number and −4 is less than 17?
Pavlova-9 [17]

Answer:

3(n + 4) ≤ 10 is the equation and the solution is n ≤ -2/3 Decimal Form: -0.666667

hope this helps you

Step-by-step explanation:

7 0
3 years ago
Find the height of the cylinder.
lara31 [8.8K]
\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h~~
\begin{cases}
r=radius\\
h=height\\
-----\\
V=271.4\\
r=6
\end{cases}\implies 271.4=\pi (6)^2h\implies \cfrac{271.4}{\pi (6)^2}=h
3 0
3 years ago
Read 2 more answers
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