Answer:
10g+6 is the answer
Step-by-step explanation:
Answer:
= 4n - 2
Step-by-step explanation:
There is a common difference d between consecutive terms in the sequence, that is
6 - 2 = 10 - 6 = 14 - 10 = 18 - 14 = 4
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 2 and d = 4 , thus
= 2 + 4(n - 1) = 2 + 4n - 4 = 4n - 2
Not to scale
vertex angle =
Answer:
The measure of the vertex angle of the next isosceles triangle is 10°
Step-by-step explanation:
The given information are;
The first isosceles triangle; Base angles = 89°, vertex angle = 2°
The second isosceles triangle; Base angles = 88°, vertex angle = 4°
The third isosceles triangle; Base angles = 87°, vertex angle = 6°
The fourth isosceles triangle; Base angles = 86°, vertex angle = 8°
The vertices of the isosceles triangles form a arithmetic projection, with a common difference of 2°
Therefore, the vertex for next isosceles triangle = 8° + 2° = 10°
The base angles are derived from the sum of interior angles of a triangle which is 180°
Which gives;
2 × Base angles + Vertex angle = 180°
2 × Base angles + 10° = 180°
2 × Base angles = 180° - 10° = 170°
Base angles = 170°/2 = 85°
Base angles of the fifth isosceles triangle = 85°
From which we have;
The fifth isosceles triangle; Base angles = 85°, vertex angle = 10°
The measure of the vertex angle of the next (fifth) isosceles triangle = 10°
Answer:
D. As the number of students in a class increases, the average rating score of the class decreases.
Hope this helps!