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3 years ago

State all integer values of x in the interval [0,7] that satisfy the following inequality

Mathematics

1 answer:

Anestetic [448]3 years ago

3 0

Answer:

x>3/2

Step-by-step explanation:

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Write a sentence/scenario that uses the integer -12 to represent a

alexandr1967 [171]

The temperature outside is -12 degrees Fahrenheit.

Zero is where the temperature changes from a negative value to a positive value.

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2 years ago

HighTech Inc. randomly tests its employees about company policies. Last year in the 560 random tests conducted, 26 employees fai

Tanzania [10]

Answer:

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

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 zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

560 random tests conducted, 26 employees failed the test. This means that $n = 560, \pi = \frac{26}{560} = 0.046$

98% confidence level

So $\alpha = 0.02$ , z is the value of Z that has a pvalue of $1 - \frac{0.02}{2} = 0.99$ , so $Z = 2.33$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 - 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.025$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.046 + 2.33\sqrt{\frac{0.046*0.954}{560}} = 0.067$

The 98% confidence interval for the proportion of applicants that fail the test is (0.025, 0.067).

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3 years ago

Which sequence is geometric and has `1/4` as its fifth term and `1/2` as the common ratio? A. …, `1,` ` 1/2`, `1/4`, `1/8`, … B.

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Looks like its A whose first term would be 4.

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3 years ago

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Find the quotient. Simplify your answer.

brilliants [131]

Let's see

$\\ \rm\Rrightarrow \dfrac{s+1}{s^2+1}\div \dfrac{s^2}{6s^2}$

$\\ \rm\Rrightarrow \dfrac{s+1}{s(s+1)}\div\dfrac{1}{5s^2}$

$\\ \rm\Rrightarrow \dfrac{1}{s}\times{5s^2}$

$\\ \rm\Rrightarrow \dfrac{5s^2}{s}$

$\\ \rm\Rrightarrow 5s$

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1 year ago

A mother wants to invest $14,000.00 for her sons future education. She invests a portion of the money in a bank certificate of d

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560, because 4 percent of 14,000.00 is 560.

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3 years ago

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