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ladessa [460]
2 years ago
6

Suppose f(x)=2x−5. Find the value of f(3) can someone please help me with this?

Mathematics
1 answer:
dmitriy555 [2]2 years ago
3 0

f(3) = 1

substitute x = 3 into f(x)

f(3) = (2 × 3) - 5 = 6 - 5 = 1


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Valerie earns $24 per hour. Which expression can be used to show how much money she earns in 7 hours?
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3 years ago
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Merta reports that 74% of its trains are on time. A check of 60 randomly selected trains shows that 38 of them arrived on time.
kenny6666 [7]

Answer:

No, the on-time rate of 74% is not correct.

Solution:

As per the question:

Sample size, n = 60

The proportion of the population, P' = 74% = 0.74

q' = 1 - 0.74 = 0.26

We need to find the probability that out of 60 trains, 38 or lesser trains arrive on time.

Now,

The proportion of the given sample, p = \frac{38}{60} = 0.634

Therefore, the probability is given by:

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6 0
3 years ago
Please help me ! I will give you a heart and Brainly , if you put a link I will report you !
Triss [41]

Answer:

<4= 164

Step-by-step explanation:

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Answer:

I think its 57

Step-by-step explanation:

the difference of 6 divided by 2 is 3

i just divided 171 by 3 and got 57

3 0
3 years ago
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