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3 years ago

Find the value of x.

Mathematics

1 answer:

Otrada [13]3 years ago

5 0

Answer:

the value of x is 29°

hope it helps

have a nice day

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Chef Alfredo invested $4800 at a simple interest rate of 5% and can now afford a $6,000

KonstantinChe [14]

Answer:

5 years

Step-by-step explanation:

The difference in the amounts is the total interest:

6000 - 4800 = 1200

Yearly interest is:

4800*0.05 = 240

Time in years:

1200/240 = 5

7 0

3 years ago

Please help as soon as possible this is super important the question goes with the graph

makkiz [27]

The answer lies under the secret of your heart, you must seek in and find the truth

5 0

3 years ago

Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. The

Tems11 [23]

Answer:

The 84% confidence interval for the population proportion that claim to always buckle up is (0.74, 0.80).

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 $1 - \frac{\alpha}{2}$ .

They randomly survey 387 drivers and find that 298 claim to always buckle up.

This means that $n = 387, \pi = \frac{298}{387} = 0.77$

84% confidence level

So $\alpha = 0.16$ , z is the value of Z that has a p-value of $1 - \frac{0.16}{2} = 0.92$ , so $Z = 1.405$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 - 1.405\sqrt{\frac{0.77*0.23}{387}} = 0.74$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.77 + 1.405\sqrt{\frac{0.77*0.23}{387}} = 0.8$

The 84% confidence interval for the population proportion that claim to always buckle up is (0.74, 0.80).

6 0

3 years ago

Is 3.4 x 10 ⁵ a irrational number or rational number?

Luba_88 [7]

Answer:

It's a rational number

Step-by-step explanation:

Hope this help have a good day and good luck plz vote best answer :)

6 0

4 years ago

III

docker41 [41]

Answer:

8x+6=-8

x=-1,75

Step-by-step explanation:

8x+6=-8

8x=-8-6

8x÷8=-14÷8

x=1,75

3 0

3 years ago