19. 9a2b = c + 4a, for a
1 answer:
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Answer:
0.6
Step-by-step explanation:
Given that the spinner has 5 equal sections numbered 1 to 5.
- Total Sample Space, n(S)=5
Multiples of 2 in 1 to 5 are: {2,4}
Number less than than 3 are:{1,2}
Since we are required to find the probability of the spinner stopping on a number that is a multiple of 2 or is less than 3, we take the union of both sets.
{2,4} {1,2} ={1,2,4}
Number of Outcomes=3
Therefore,
Probability of the spinner stopping on a number that is a multiple of 2 or is less than 3
For this case we must simplify the following expression:
We rewrite:
We rewrite the expression:
By definition of properties of powers and roots we have:
Then, taking the terms of the radical:
We add similar terms:
Answer:
Option C