Answer:
4.91 hope this helps :D
Step-by-step explanation:
1. false 2. true 3. true 4.false
Step-by-step explanation:
Answer:
x is 71
Step-by-step explanation:
X + 72 + 37 = 180 ( Sum of angles in a triangle)
X = 180 - 72 - 37
X = 71
Cosine is

which applies to a right triangle. I hope that helps you.
Answer:
a. 2 – 8 - [- 4 – (-6 + 3 -9)] X ( -10 ÷2) suprimir los signos de agrupacion
Step-by-step explanation: