1: 8 faces and 9 with the base 9 vertices and 16 edges
2: 3 faces and 5 with the bases 6 vertices and 9 edges
3: 3 faces and 4 with the base 4 vertices and 6 edges
1. analyze data presented
It is not d because it is not greater than 80 degrees
it is not a because it is clearly not 10 degrees
making system of equations
8x+(4x+60)=180
addition
12x+60=180
move sixty to the other side
12x=120
division
x=10
Angle BEC=*x, so 8x=80
Answer: 80 degrees
Answer:
C and D
Step-by-step explanation:
a = 10.8 - 8/1.5 - 1 = 4.2
rate of change: 4.2
y = 4.2x + b
x = 1, y = 8
8 = 4.2 (1) + b
8 - 4.2 = b
b = 3.8
Initial value: 3.8
it is 40/1
Step-by-step explanation:
I can tell because every whole numbers is always equivalent to 1