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Brut [27]
3 years ago
11

Q3.

Mathematics
1 answer:
umka2103 [35]3 years ago
3 0

Answer:

8.48%

Step-by-step explanation:

Bill's weight decreases from 64.8 kg to 59.3 kg.

We need to find the percentage decrease in Bill's weight. It can be calculated as follows :

\%=\dfrac{64.8 -59.3 }{64.8 }\times 100\\\\=8.48\%

So, the required decrease in percentage is 8.48%.

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A 2003 survey showed that 14 out of 250 Americans surveyed had suffered some kind of identity theft in the past 12 months. What
ivann1987 [24]

Answer:

The lower confidence limit of the 95% confidence interval for the population proportion of Americans who were victims of identity theft is 0.0275.

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.

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

In which

z is the z-score that has a p-value of 1 - \frac{\alpha}{2}.

A 2003 survey showed that 14 out of 250 Americans surveyed had suffered some kind of identity theft in the past 12 months.

This means that n = 250, \pi = \frac{14}{250} = 0.056

95% confidence level

So \alpha = 0.05, z is the value of Z that has a p-value of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.056 - 1.96\sqrt{\frac{0.056*0.944}{250}} = 0.0275

The lower confidence limit of the 95% confidence interval for the population proportion of Americans who were victims of identity theft is 0.0275.

5 0
2 years ago
Find 50% of 108:<br> Find 25% of 108:<br> Find 75% of 108:
laiz [17]

Answer:

50% of 108: 54

25% of 108: 27

75% of 108:  81

Step-by-step explanation:

Hope this helps have a nice day

5 0
3 years ago
Read 2 more answers
Solve prt for t if i=105 p=700 r=0.05
Illusion [34]
I = prt
t = I/pr = 105/(700 x 0.05) = 105/35 = 3

Therefore, t = 3.
5 0
3 years ago
It is used to name a circle.
Darya [45]

Answer:

do you have a photo I don't get it not being funny do you have a photo or something I'm trying to help as much as I can

6 0
3 years ago
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32x+5 = 3x - 3<br> Solving exponential equations
Likurg_2 [28]

Answer:

x = -8/29 = -0.276

Step-by-step explanation:

Step  1  :

Solving a Single Variable Equation :

1.1      Solve  :    29x+8 = 0

Subtract  8  from both sides of the equation :

                     29x = -8

Divide both sides of the equation by 29:

                    x = -8/29 = -0.276

One solution was found :

                  x = -8/29 = -0.276

Processing ends successfully

plz mark me as brainliest :)

5 0
3 years ago
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