Answer:
1. 60 degrees
2. 50 degrees
4. 49 degrees
5. 26 degrees
Step-by-step explanation:
The sum of the measures of the angles of a triangle is 180 degrees.
1.
x + 80 + 40 = 180
x + 120 = 180
x = 60
2.
x + 75 + 55 = 180
x + 130 = 180
x = 50
4.
x + 90 + 41 = 180
x + 131 = 180
x = 49
5.
x + 81 + 73 = 180
x + 154 = 180
x = 26
Geometry
This makes a cube because a cube has 6 faces, 8 vertices, and 12 edges.
1. E
2(a+2b+3c)= 2a+4b+6c you will distribute the 2 into a, b, and c which you will multiply.
2 x a = 2a
2 x 2b = 4b
2 x 3c = 6c
i am not sure but I also need the answer to this question
A₁ = 3
a₂ = 4.2
d = a₂ - a₁
= 4.2 - 3
= 1.2
a₉₈ = a₁ + d(n-1)
= 3 + 1.2(98-1)
= 3 + 1.2×97
= 3 + 116.4
= 119.4
