Plotting the functions is highly recommended.
For A, the area under
over the interval [1, 2] is the area of rectangle with height 3 and width 2 - 1 = 1, so the area is

For B, the area under
plotted over the interval [0, 2] is the area of a triangle with height 1 and base length 2, so the area is

Answer:
2⅝
Step-by-step explanation:
You must convert each fraction to a <em>common denominator</em>.
The <em>least common multiple</em> of 2, 4, and 8 is 8.
1/4 +3/8 + 1/2 + 5/8 + 7/8 Convert to a common denominator
= 2/8 + 3/8 + 4/8 + 5/8 + 7/8
= (2 + 3 + 4 + 5 + 7)/8
= 21/8 Convert to a mixed number
= (16 + 5)/8
= 2 + ⅝
= 2⅝
Correlation coefficient helps us to know how strong is the relation between two variables. The strength of the model is a strong positive correlation.
<h3>What is the correlation coefficient?</h3>
The correlation coefficient helps us to know how strong is the relation between two variables. Its value is always between +1 to -1, where, the numerical value shows how strong is the relation between them and, the '+' or '-' sign shows whether the relationship is positive or negative.
- 1 indicates a strong positive relationship.
- -1 indicates a strong negative relationship.
- A result of zero indicates no relationship at all, therefore, independent variable.
Hence, the strength of the model is a strong positive correlation.
Learn more about Correlation Coefficients:
brainly.com/question/15353989
9;9
Explanation:
You divide 18 by 2 to get 9 and divide 27 by 3 to get 9.
Hope that helps!