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ratelena [41]
3 years ago
6

Simplify (4x) * mn * 15 * 2

Mathematics
1 answer:
Vinvika [58]3 years ago
8 0
Since it's multiplication we can Multiply the constants. In this case 4, 15, and 2. We get 120. We now then multiply the variables. We then get the answe 120mnx
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Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.65
Verizon [17]
A) 0.9803; 0.4803
B) 32

We calculate the z-score for this problem by using the formula:

z=\frac{X-\mu}{\frac{\sigma}{\sqrt{n}}}

Using our formula, we have:

z=\frac{3.00-2.65}{\frac{0.85}{\sqrt{25}}}=2.06

Using a z-table (http://www.z-table.com) we see that the area to the left of, less than, this score is 0.9803.

To find the probability it is between the mean and this, we subtract the probability associated with the mean (0.5) from this:
0.9803 - 0.5 = 0.4803.

To find B, we first find the z-score for this.  Using a z-table (http://www.z-table.com) we see that the closest z-score would be 2.33.  We then set up our equation as

2.33=\frac{3.00-2.65}{\frac{0.85}{\sqrt{n}}}=\frac{0.35}{\frac{0.85}{\sqrt{n}}}
\\
\\2.33=0.35\div \frac{0.85}{\sqrt{n}}=0.35\times \frac{\sqrt{n}}{0.85}

Multiplying both sides by 0.85 we have
2.33(0.85) = 0.35√n
1.9805 = 0.35√n

Divide both sides by 0.35:
1.9805/0.35 = √n

Square both sides:
(1.9805/0.35)² = n
32 ≈ n
8 0
3 years ago
Provide the Domain and range.
Alik [6]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
Want Brainliest?
andrew11 [14]

Answer:

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Step-by-step explanation:

3 0
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Arlecino [84]

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3 years ago
A single card is drawn from a stack of 52 cards what is the possibility of choosing the 3 of clubs
Fantom [35]

Answer:

1/52

Step-by-step explanation:

Let's first examine how many 3 of clubs there are in a deck of 52 cards

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Therefore, there is only 1 "3 of clubs" in a deck of cards, so the probability of drawing one out is

1/52

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