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Gnesinka [82]
3 years ago
14

What is equation created from the sqrt(x+2)+2))^2

Mathematics
1 answer:
Naddika [18.5K]3 years ago
8 0

Answer:

x + 4√(x + 2) + 6

Step-by-step explanation:

All we need to do is expand by using FOIL (First, Outside, Inside, Last):

x + 2 + 2√(x + 2) + 2√(x + 2) + 4

Then we combine like terms to get our final answer:

x + 2 + 4√(x + 2) + 4

x + 4√(x + 2) + 6

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Find the equation of line parallel line to y=2x+7 and that goes through the point 4,12
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Y= 2x+4, because when you plug in x and y you then solve for b and get 4. The 2x is the same because the slope stays the same on parallel lines.
8 0
3 years ago
A statistics practitioner determined that the mean and standard deviation of a data set were 120 and 30, is respectively. What c
BartSMP [9]

Answer:

a) 68% of the observations lie between 90 and 150.

b) 95% of the observations lie between 60 and 180.

c) 99.7% of the observations lie between 30 and 210.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Standard deviation = 120

Mean = 30

a. 90 and 150

This is within 1 standard deviation of the mean.

By the Empirical Rule, 68% of the observations lie between 90 and 150.

b. 60 and 180

This is within 2 standard deviations of the mean.

By the Empirical Rule, 95% of the observations lie between 60 and 180.

c. 30 and 210

This is within 3 standard deviations of the mean.

By the Empirical Rule, 99.7% of the observations lie between 30 and 210.

4 0
3 years ago
A) y= -3.5x + 57.5<br>B) y= 3.5x + 57.5<br>C) y= -3.5x + 32.5<br>D) y= -3x + 57.5
spin [16.1K]
The answer is y=-3x+57.5
7 0
3 years ago
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In a class, 40% of the students are girls. Of the girls in the class, 25% play tennis. There are 40 students in the class. How m
ziro4ka [17]
I think it’s B not sure tho
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3 years ago
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Find 5/7 ÷ 3 and how did you find it
Zarrin [17]

Answer:

5/21

Step-by-step explanation:

1. 5/7 divided by 3 is the same as 5/7 divided by 3/1

2. when dividing a fraction, multiply by the reciprocal, so it would be 5/7 times 1/3

3. multiply the numerator and denominators, so 5x1 and 3x7

4. the answer is 5/21

hope this helped!  

6 0
2 years ago
Read 2 more answers
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