The mean is the average. Add all the numbers together, then divide by the quantity of numbers in the data set.
1040 / 13 = 80
The mean is 80
109° as an icoloces triangle (you can tell by the two lines) has 2 identical angels so the two bottom angels are the same and the angels on a straight line add up to 180°
Answer:
the vertex of this parabola is at (-6, 2).
Step-by-step explanation:
Compare the given y=-(x+6)² + 2 with the standard vertex form:
y = a(x - h)^2 + k. We see that
h must be -6 and k must be 2.
Thus the vertex of this parabola is at (-6, 2).
Answer:
23
Step-by-step explanation:
Answer:
30.
Step-by-step explanation:
The 120 degree has to be the vertex angle.
The other 2 angles in the triangle will be congruent as the triangle is isosceles.
These 2 are both = (180-120) / 2
= 60/2
= 30 degrees.
