Answer:
x = -1.5
Measure of those vertical angles = 40 degrees
Step-by-step explanation:
2x+43 = -10x+25
2x + 10x = 25 - 43
12x = -18
x = -18/12
x = - 1.5
If you need to find the measure of those vertical angles then
2(-1.5) + 43 = 40
Why are all the answer choices the same..?
Answer:

Step-by-step explanation:
Factor out the common terms, and get: 
Factor
, and get: 
<em>Hope this helps!!</em>
Answer: 1/5
Step-by-step explanation:
Given the following :
Total number of ducks in pool = 30
Mark 1 = 15 ducks
Mark 2 = 9 ducks
Mark 3 = 6 ducks
Probability of picking a duck with Mark 3:
Probability = (number of required outcomes / total possible outcomes)
Number of required outcomes = number of ducks with mark 3 = 6 ducks
P(picking a duck with Mark 3) = 6/30
6/30 = 1/5
= 1/5