Answer:
x = 39.1
Step-by-step explanation:
To find the mean, add up all the data points and then divide by the number of data points
(31.7+ 42.8+ 26.4+ x)/4 = 35
Multiply each side by 4
(31.7+ 42.8+ 26.4+ x)/4*4 = 35*4
(31.7+ 42.8+ 26.4+ x) = 140
Combine like terms
100.9+x = 140
Subtract 100.9 from each side
x = 140-100.9
x = 39.1
Answer:
Acute, Equilateral
Step-by-step explanation:
Acute because all angles (which are 60 degrees) are less than 90 degrees.
Equilateral because all sides are equal.
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Answer:
3
Step-by-step explanation:
1.0 I think I'm young I'm not to smart
For 1st fig:
Angles whose measure is greater than angle 8 is:
<4,<5,<9
For 2nd fig:
Angles whose measure is less than angle 4 is:
<2,<5,<7
▶Explanation:
❇Statement of Exterior angle inequality theorem:
↪An exterior angle of a triangle is greater than either of the non-adjacent interior angles.
➡So for 1st fig ,< 4,<5,<9 were exterior angles of triangle which would obviously be greater angle than interior angle 8 by the theorem.
➡Similarly, for 2nd fig, <2,<5,<7 were non adjacent interior angles which would obviously be less in measure than exterior angle 4.In this case , see both triangles to not get confused.
