Cual es resultado de 8.5 × 10^4 - 3.0 × 10^3
1 answer:
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Answer:
a)
b)
And replacing we got:
Step-by-step explanation:
For this case we can solve this problem creating the following table
Number of particles Frequency Rel. Frequency
0 1 1/100 =0.01
1 2 2/100 =0.02
2 3 3/100=0.03
3 12 12/100=0.12
4 11 11/100=0.11
5 15 15/100=0.15
6 18 18/100=0.18
7 10 10/100=0.1
8 12 12/100=0.12
9 4 4/100=0.04
10 5 5/100=0.05
11 3 3/100=0.03
12 1 1/100=0.01
13 2 2/100=0.02
14 1 1/100=0.01
Total 100 1
We assume on this case the the relative frequency represent the probability.
Let X the number of contaminating particles on a silicon wafer
What proportion of the sampled wafers had at least one particle?
For this case we can use the complement rule like this:
At least five particles?
Again for this case we can use the complement rule and we got:
And replacing we got:
Answer:
The angles are: 25°, 25°, 155° and 155°.
Step-by-step explanation:
1. By definition, the intersection of two lines forms four angles. Each opposite pairs of them are known as "Vertical angles" and they are congruent, which means than they have the same measure.
2. The sum of the four angles is 360°.
3. If the sum of the two angles is 50°, you can calculate the measure of each one of them by dividing 50° by 2:
4. To find each measure of the other two angles, you must subtract 360° and 50° and divide this by 2: