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Kruka [31]
2 years ago
15

A + c + 2b = a + 2b + c property

Mathematics
1 answer:
Hatshy [7]2 years ago
6 0
<span>A + c + 2b = a + 2b + c 
Commutative property

hope that helps</span>
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The density curve below represents the number of hours that Mrs. Schultz's students spent studying for
Brut [27]

Answer:

the mean of the study times is greater than the median

Step-by-step explanation:

8 0
3 years ago
Trucks in a delivery fleet travel a mean of 120 miles per day with a standard deviation of 18 miles per day. The mileage per day
kvv77 [185]

The probability that a truck drives between 150 and 156 miles in a day is 0.0247. Using the standard normal distribution table, the required probability is calculated.

<h3>How to calculate the probability distribution?</h3>

The formula for calculating the probability distribution for a random variable X, Z-score is calculated. I.e.,

Z = (X - μ)/σ

Where X - random variable; μ - mean; σ - standard deviation;

Then the probability is calculated by P(Z < x), using the values from the distribution table.

<h3>Calculation:</h3>

The given data has the mean μ = 120 and the standard deviation σ = 18

Z- score for X =150:

Z = (150 - 120)/18

   = 1.67

Z - score for X = 156:

Z = (156 - 120)/18

  = 2

So, the probability distribution over these scores is

P(150 < X < 156) = P(1.67 < Z < 2)

⇒ P(Z < 2) - P(Z < 1.67)

From the standard distribution table,

P(Z < 2) = 0.97725 and P(Z < 1.67) = 0.95254

On substituting,

P(150 < X < 156) = 0.97725 - 0.95254 = 0.02471

Rounding off to four decimal places,

P(150 < X < 156) = 0.0247

Thus, the required probability is 0.0247.

Learn more about standard normal distribution here:

brainly.com/question/26822684

#SPJ1

5 0
1 year ago
Rewrite <img src="https://tex.z-dn.net/?f=%5Cfrac%7B200x%20-%20300%7D%7Bx%7D" id="TexFormula1" title="\frac{200x - 300}{x}" alt=
lord [1]

Answer:

We can rewrite this as \frac{200x}{x} + \frac{-300}{x}.

\frac{200x}{x} simplifies to 200 after eliminating x from the numerator and denominator and \frac{-300}{x} becomes -\frac{300}{x} so the final answer is 200 - \frac{300}{x}.

6 0
3 years ago
Part A The top of a table is in the shape of a circle and has a diameter of 32 inches. At the center of the table, there is a sm
lisabon 2012 [21]

Answer:

Step-by-step explanation:

4 0
3 years ago
Multiply (x-4)(x^2-5x-6) ...?
frez [133]
See attached photo for answer.

6 0
3 years ago
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