Answer:
b) 152cm^2
i think im not sure
Step-by-step explanation:
= -1/2 + 2/3 - 7/6
= -3/6 + 4/6 - 7/6
= -6/6
= -1
answer
-1
Answer:
I don't know if this will be right but:
$20 - $2.50x
Step-by-step explanation:
You start of with 20 dollars, for each day (x), $2.50 will be taken out of your 20 each day.
Answer:
<h2>C.</h2>
Step-by-step explanation:
The right question is
<em>Which expression shows the result of applying the distributive property to 1/4(−3n+3/2) ? </em>
<em>A.3/4n−3/8 </em>
<em>B.3/4n+3/8 </em>
<em>C.−3/4n+38 </em>
<em>D. −3/4n−3/8</em>
The given expression is
![\frac{1}{4}(-3n+\frac{3}{2})](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%28-3n%2B%5Cfrac%7B3%7D%7B2%7D%29)
To apply the distributive property, we just have to "distribute" the factor
to each term inside of the parenthesis, as follows
![\frac{1}{4}(-3n+\frac{3}{2})=\frac{1}{4}(-3n)+\frac{1}{4}(\frac{3}{2})\\-\frac{3}{4}n+\frac{3}{8}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B4%7D%28-3n%2B%5Cfrac%7B3%7D%7B2%7D%29%3D%5Cfrac%7B1%7D%7B4%7D%28-3n%29%2B%5Cfrac%7B1%7D%7B4%7D%28%5Cfrac%7B3%7D%7B2%7D%29%5C%5C-%5Cfrac%7B3%7D%7B4%7Dn%2B%5Cfrac%7B3%7D%7B8%7D)
<em>(Remember that when we multiply fractions, we do it linear, that is, numerator multiplies numerator and denominator multiplies denominator)</em>
Therefore, the equivalent expression is
![-\frac{3}{4}n+\frac{3}{8}](https://tex.z-dn.net/?f=-%5Cfrac%7B3%7D%7B4%7Dn%2B%5Cfrac%7B3%7D%7B8%7D)
So, the answer is C.
Using a calculator, the correlation coefficient is of 0.7649. Since the correlation is greater than 0.6, there is strong correlation.
<h3>What is a correlation coefficient?</h3>
- It is an index that measures correlation between two variables, assuming values between -1 and 1.
- If it is positive, the relation is positive, that is, they are direct proportional. If it is negative, they are inverse proportional.
- If the absolute value of the correlation coefficient is greater than 0.6, the relationship is strong.
Using a calculator, we insert the points (x,y) to find the coefficient. In this problem, the points are given as follows:
(1, 5), (4, 8), (8, 3), (13, 10), (19, 13)
The coefficient is of 0.7649. Since the correlation is greater than 0.6, there is strong correlation.
More can be learned about correlation coefficients at brainly.com/question/25815006
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