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lorasvet [3.4K]
3 years ago
5

You buy a commemorative coin for $110. Each year, t, the value V of the coin increases by 4%

Mathematics
2 answers:
faltersainse [42]3 years ago
6 0
A. f(x)= 100*1.04^t
Exponential functions follow the form of y=ab^x, where a is the principal amount, b is the rate of growth or decay (1+0.04), and x is the time.

b. f(8)= 100*1.04^8
100*1.368569...
136.856

Final answer: $136.86
Bess [88]3 years ago
5 0

Answer:

$136.86

Step-by-step explanation:

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Of the population of all fruit flies we wish to give a 90% confidence interval for the fraction which possess a gene which gives
maks197457 [2]

Answer:

The margin of error for the 90% confidence interval is of 0.038.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

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In which

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M = z\sqrt{\frac{\pi(1-\pi)}{n}}

To this end we have obtained a random sample of 400 fruit flies. We find that 280 of the flies in the sample possess the gene.

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90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

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The margin of error for the 90% confidence interval is of 0.038.

8 0
3 years ago
One week Michael worked 40 hours and sold 2,870 worth of shoes if his employer paid him 12.50 per hour and 6% commission of all
liq [111]

Answer:

Money which Michael make in commission = 158.7

Step-by-step explanation:

Given that,

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commission which Micheal will get on sale = 6% above 225sale

To find,

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Commission = (2870 - 225)*6/100

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Commission = 158.7

Total money Micheal make in a week = (40*12.50) + (158.7)

                                                                 = 658.7

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nadya68 [22]
The answer would be the second choice. 4:5
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tankabanditka [31]
H x r = T  The number of hours Sean works is represented by (h), Sean gets paid (r) per hour.  By multiplying the number of hours worked by the rate per hour you get the total amount Sean gets paid (T) 
3 0
4 years ago
If y &gt; 2x + 12 , then what does y equal?
mario62 [17]

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6 0
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