Answer:
x = 25.5
Step-by-step explanation:
Since there is a pair of parallel lines and a line cutting across the lines, ∠5 and ∠12 are interior angles and add up to 180°.
∠5 + ∠12 = 180°
5x - 11 + x + 38 = 180
Evaluate like terms.
6x + 27 = 180
Isolate 6x.
6x = 180 - 27
= 153
Find x.
x = 153 ÷ 6
x = 25.5
Answer is A
Just make sure you do know how to do them :)
Answer:
If 0.20 mole of Cl 2 is added to the equilibrium mixture, will the concentration of PCl 5 increase or decrease? If the equilibrium constant for this reaction is expressed in terms of concentrations, written as follows: Here, , and represent the molar concentrations of, , and respectively. Chapter 10, Problem 60CQ is solved.
Step-by-step explanation:
-1, -3/4, -5/8, -1/20, 0
Keep in mind that when ordering negative numbers from least to greatest, you will have to order them backwards. Think about it in terms of the distance from the number line. -1 is the farthest away from 0, therefore the least, -3/4 is the second farthest from 0, and so on.