35
area of triangle is (base X height)/2
so it would be (14 X 5)/2
which is 70/2
which is 35
The <u>correct answer</u> is:
0.872.
Explanation:
The correlation coefficient of a regression line is a measure of how closely the line fits our data. Negative correlation coefficients represent decreasing lines; positive correlation coefficients represent increasing lines.
The closer a correlation coefficient is to +1 or -1, the better the fit; a perfect positive fit is r=1 and a perfect negative fit is r=-1.
We can see in the graph that the line is very close to our data, so it is a pretty good fit.
The line is increasing; this means we want a correlation coefficient that is close to 1.
The best choice is 0.872.
The third side of the Triangle should be greater than the difference of other two sides, so
And, The third side should be less than the sum of other two sides that is ~
Considering these two inequalities, we get ~
The first question's answer is 80% because 100-20 is 80.
The second question is There is not enough information to tell because it doesn't give an amount. It gives us percent so we can't tell how many people are in the survey.
Answer:
x = 3.8
y = 15.2
Step-by-step explanation:
y = 4x
y = 19 - x,
if y = y then,
4x = 19 - x
5x = 19
x = 19/5 = 3.8 now inputting the answer to x into one of the unchanged equations above (y = 4x),
y = 4x = 4*3.8 = 15.2
Double check:
y = 19 - x = 19 - 3.8 = 15.2