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solong [7]
3 years ago
15

I need help on 34 and 36

Mathematics
1 answer:
aleksley [76]3 years ago
4 0
34. 65 = 3/4c - 7....add 7 to both sides
      65 + 7 = 3/4c...simplify
       72 = 3/4c...multiply both sides by 4/3, eliminating the 3/4 on the left
       72 * 4/3 = c
       288/3 = c
       96 = c

36. -5/2 = 3/4z + 1/2 ...subtract 1/2 from both sides
      -5/2 - 1/2 = 3/4z .... simplify
       -6/2 = 3/4z ....reduce
       -3 = 3/4z....multiply by 4/3. eliminating the 3/4 on the left
      -3 * 4/3 = z
       -12/3 = z
       -4 = z
       
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Answer: 16

Step-by-step explanation:

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2 years ago
A parallel system functions whenever at least one of its components works. Consider a parallel system of 5 components, and suppo
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Answer:

Probability that component 4 works given that the system is functioning = 0.434 .

Step-by-step explanation:

We are given that a parallel system functions whenever at least one of its components works.

There are parallel system of 5 components and each component works independently with probability 0.4 .

Let <em>A = Probability of component 4 working properly, P(A) = 0.4 .</em>

<em>Also let S = Probability that system is functioning for whole 5 components, P(S)</em>

Now, the conditional probability that component 4 works given that the system is functioning is given by P(A/S) ;

P(A/S) =  {Means P(component 4 working and system also working)

divided by P(system is functioning)}

  P(A/S) =  {In numerator it is P(component 4 working) and in

                denominator it is P(system working) = 1 - P(system is not working)}

Since we know that P(system not working) means that none of the components is working in system and it is given with the probability of 0.6 and since there are total of 5 components so P(system working) = 1 - 0.6^{5} .

 Hence, P(A/S) = \frac{0.4}{1 - 0.6^{5} } = 0.434.    

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3 years ago
Conduction can occur within a single substance, but parts of the substance must have which property? different temperatures diff
Julli [10]

Answer:

A,

Step-by-step explanation:

answer is A

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3 years ago
Adrian kept an eye on the basketball game score by looking online every 10 minutes. Over the course of
Oduvanchick [21]

Answer:

Step-by-step explanation:

Using the mean concept, it is found that the average score of Adrian’s favorite team relative to its opponent using the observations Adrian made during the game is of -0.3333.

-----------------

The mean of a data-set is given by the sum of all observations divided by the number of observations.

Adrian looked the scores every 10 minutes in 2 hours, thus 12 times, as .

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At the other moments, the game was tied, thus the observation is 0.

Thus, the mean is of:

The average score of Adrian’s favorite team relative to its opponent using the observations Adrian made during the game is of -0.3333.

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2 years ago
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