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Nady [450]
3 years ago
7

Which statement describes the relationship between x and y in these two equations?

Mathematics
2 answers:
Gnesinka [82]3 years ago
8 0

Answer:

answer is definetly B

Step-by-step explanation:

marysya [2.9K]3 years ago
4 0

Answer:

The correct option is B.

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1.Mr. Bowen’s test is normally distributed with a mean of 75 and a standard deviation of 3 points.
lianna [129]

Answer:

2.28%

Step-by-step explanation:

Mr. bowens test is normally distributed with a mean (μ) of 75 and a standard deviation (σ) of 3 points.

The z score is used in probability to show how many standard deviation is a raw score below or above the mean. The formula for the z score (z) is given by:

z=\frac{x-\mu}{\sigma}

For a raw score (x) of 81 points, the z score can be calculated by:

z=\frac{x-\mu}{\sigma}=\frac{81-75}{3}=2

Therefore from the normal probability distribution table, the probability that a randomly selected score is greater than 81 can be given as:

P(x > 81) = P(z > 2) = 1 - P(z < 2) = 1 - 0.9772 = 0.0228 = 2.28%

7 0
3 years ago
Find x<br><br> 5x-7+8x-55<br><br> 13 POINTS <br><br> Show work please
Law Incorporation [45]

Combine like terms. The 5x is grouped to the 8x and the -7 isgrouped with the -55.

This means 5x + 8x = 13x and -7 - 55 = -62

The new expression is 13x - 62. We can't find the exact value of x because the expression wasn't set equal to anything.

3 0
3 years ago
Read 2 more answers
In a certain village of Nepal, all the people speak either Nepali, or Maithili
galina1969 [7]

Given,

Nepali speaker : 80% (Y)

Maithili speaker : 60% (X)

We know that,

Both language speaker = Y -X

Now,

Y- X

= 80- 60

= 20

Therefore, 20% people speak both languages

4 0
3 years ago
.125 as a fraction .
Oduvanchick [21]

Answer:

1/8


Step-by-step explanation:


7 0
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Answer:

5b^9/a^3

Step-by-step explanation:

3 0
2 years ago
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