Answer:
Step-by-step explanation:
number of side = n =7
Sum of all the angles of given polygon = (n -2)*180 = 5 *180 = 900
x + 140 +133 +145 + 117 + 119 + 125 = 900
x + 779 = 900
x = 900 - 779
x = 121
Answer:
d = 4
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₁ = - 2 and a₈ = 26 , then
- 2 + 7d = 26 ( add 2 to both sides (
7d = 28 ( divide both sides by 7 )
d = 4
Answer:
Step-by-step explanation:
The volume of the triangular prism, this is an isosceles triangular prism is
V=1/2 * a*b*h
V=1/2 x10x8x14=560 cm^3
Answer:
-221/10
Step-by-step explanation:
In the attached file
Answer:
the answer is x=5
Step-by-step explanation:
hoped I helped:)