Reason number 1 (before) is that you could contaminate your samples if you have foreign material on your hands.
Reason number 2 (after) is that you could spread<span>/or ingest dangerous chemicals or substances that you have handled in the lab.</span>
Answer:
it is 54
Step-by-step explanation:
i took the test and checked the answer
First - Since you have a in the numerator and denominator, you can cancel them and get:
8r/12
Second - Since both 8 and 12 have common factors, you can find the GCF and divide both by that number.
GCF = 4
8/4=2
12/4=3
Answer:
2r/3
When you serve 10 Milliliters per each glass, 489 glasses are served with 10 Milliliters of Punch and a glass with 3.
When you serve 1 per each, it can be bloated to 4893.
<span>When you try to fill 250 Milliliters into 250 Milliliter glass, some of it will spills out by the way.</span>
Answer: 0.2134
Step-by-step explanation:
Given : Mean readings on thermometers =
Standard deviation =
We assume that the readings on thermometers are normally distributed.
Let x be the random variable that represents the reading on a random thermometer.
To find z-score :
For x = -0.99
For x= -0.32
By using the standard normal distribution table , the probability that a randomly selected thermometer reads between -0.99 and -0.32 will be :-