We will be using the fact that 
, where 
is the probability that the first bulb works and 
is the probability that the second bulb works.
The probability that the first bulb works is 
. However, when we take one out (given that the first bulb works) we now have 19 working bulbs and 4 bad ones. This means that the probability that the second bulb works is 
.
Now, we can find our final probability:
Answer:
You would use the formula y=mx+b, where m is the slope and b is the y intercept.
Step-by-step explanation:
If the slope was 1/2 and the y intercept was 2, it would be y=1/2x+2
150% is the percent markup of the price based on the cost.
Price : 1.25
Cost : 0.50
Mark up: Price - Cost = 1.25 - 0.50 = 0.75
<span>0.75 / 0.50 = 1.50 * 100% = </span>150%
Look at the picture.
The triangle ADC and the triangle CDB are similar.
Therefore corresponding sides are all in the same proportion:
Answer: 4√3
2 MILLIONNNNNNNNNNNNNNNNNN
