9514 1404 393
Answer:
Step-by-step explanation:
The useful relation in this geometry is: an exterior angle of a triangle is equal to the sum of the remote interior angles.
128° = ∠1 + 16°
112° = ∠1
__
112° = 86° +∠2
26° = ∠2
Answer:

Step-by-step explanation:
If a, b and c are the lengths of the triangle's sides, then

Since
then

Thus,

Answer:
A) ±
Step-by-step explanation:
Answer:
Suppose you have $100 and you spent 6 dollar each day, and your friend has $160 and he/she spent $10 each day. After x days you both have equal amount, find the number of days.
Step-by-step explanation:
Consider the provided information.
We need to write a real world situation that could be modeled by the equation 100-6x=160-10x.
You can use any situation to represents this equation.
The left side of the equation consists of a constant and a variable also the right side of the equation consists of a constant and a variable.
Suppose you have $100 and you spent 6 dollar each day, and your friend has $160 and he/she spent $10 each day. After x days you both have equal amount, find the number of days.