Answer:
x = √(10) - 2, -√(10) - 2
Step-by-step explanation:
x² + 4x + 4 = 10
factor:
(x + 2)² = 10
take square root of both sides:
x + 2 = ±√(10)
split into 2 equations:
x + 2 = √(10) x + 2 = -√(10)
solve both equations and collect solutions:
x = √(10) - 2, -√(10) - 2
Answer:look up on google
Step-by-step explanation: is why we can see what the store says on this one because the article is a very good summary of the sentence and article took a sentence in the sentence.
25% is equal to 1/4. If 3 bars is 1/4 of a box, then there are 3*4 = 12 bars in a box.
Using the coefficient of variation, it is found that students were more variable in their marijuana consumption.
<h3>What is the coefficient of variation of a data-set?</h3>
The coefficient of variation of a data-set is given by the <u>division of the standard deviation of the data-set by the mean of the data-set</u>. The higher the coefficient, the more variable the data-set is.
In this problem, for marijuana consumption, the average was 3.74 and the standard deviation was 1.47, hence:

For depression levels, the average was 19.32 and the standard deviation was 3.18, hence:

Due to the higher coefficient, students were more variable in their marijuana consumption.
To learn more about the coefficient of variation, you can take a look at brainly.com/question/26420974
Answer:
i think 5 is the answer
Step-by-step explanation:
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