To solve the problem, we apply the properties of a triangle and make a system of linear equations. Setting up appropriate mathematical expressions for angles and solving the equation gives the angles as 30, 80 and 70 degrees.
This problem involves angles in a triangle and can be solved through linear equations. We know from the problem that the largest angle is 20 degrees more than twice the smallest angle, and 5 times the smallest angle equals the sum of the measures of the other two angles.
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If we graph the x - y values in a scatter plot and draw a line of best fit, we can easily see the solution.
Negative correlation means y decreases as x increases, or a negative sloping line.
Attached is the graphs of all the 4 choices. Clearly, the 4th table shows negative correlation.
ANSWER: Last table (4th table) shows negative correlation
The table that shows negative correlation is the fourth table.
Correlation is used in statistics to determine the relationship that exists between two variables.
Negative correlation means there is no relationship between the variables. When plotted on a graph, a negative correlation would be downward sloping. Looking at the tables, when plotted, only the fourth table would be downward sloping.
To learn more about negative correlation, please check: brainly.com/question/27246345
Answer:
Step-by-step explanation:
r = 4.9 miles
Area of circle = πr²
= 3.14 * 4.9 * 4.9
= 75.39 square miles