Equilateral triangle has all sides equal.For triangles sum of interior angle=180degrees
since for equilateral all sides are equal then let x represent the sides
hence angle of equilateral triangle is 60
Answer:
B. 24
Step-by-step explanation:
To find this, use Pythagorean Theorem
a^2+b^2=c^2
a is 10, and c is 26. We know 26 is the hypotenuse because it is opposite the right angle
10^2=b^2=26^2
100+b^2=676
Subtract 100 on both sides
b^2=576
Take the square root of both sides
b=24
Hope this helps! :)
From the observation of the dispersion graph it is concluded that the answer to this question is option D. r = -0.5.
The correlation coefficient "r" is a measure of the linear relationship between two random variables.
When the correlation is positive, the value of "r" is between 0 and 1. This means that when one variable increases the other too.
When the correlation is negative, the value of "r" is between -1 and 0. This means that one variable decreases as the other increases.
When there is no correlation the value of "r" is 0
In this case, the dispersion chart shows that the variable "y" decreases as the variable "x" increases. Therefore the value of "r" must be negative. Of all the options, the only one that presents a value of negative r is option D:
r = -0.5
