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2 years ago

Explain what a factor is. Feel free to use examples to support your explanation.

Mathematics

1 answer:

Westkost [7]2 years ago

8 0

Answer:

factors are basically numbers that can multiply by another number to get a certain number

Step-by-step explanation:

for example, the factors of 12: 1,2,3,4,6,12

you should count from the lowest to highest number to make it easier for u.

look at 1 and 12 in the sequence. 1 x 12 = 12

now look at 2 and 6. 2 x 6 = 12

now look at 3 and 4. 3 x 4 = 12

see what i mean?

an example of a non-factor would be 5. 5 can't multiply by anything to get 12. You need to find numbers between 1 and the certain number (12 in this example) and you need to find numbers that can multiply by another number to get that certain number but u can't go beyond the certain number. 7 can't multiply by anything to get 12. if u still don't understand, here is an easier way to help u.

the best thing to do is write the numbers from 1 - 12. 1 2 3 4 5 6 7 8 9 10 11 12

once u do that, you need to ask yourself: which numbers can multiply to get 12? 1 can multiply by a number to get 12. 2 can. 3 can. 4 can. 5 can't. once you find a number that you can't multiply by, that is not a factor of the certain number you're looking for.

Hope this helps you :D

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Out of 100 people sampled, 42 had kids. Based on this, construct a 99% confidence interval for the true population proportion of

maksim [4K]

Answer:

The 99% confidence interval for the true population proportion of people with kids is (0.293, 0.547).

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

Out of 100 people sampled, 42 had kids.

This means that $n = 100, \pi = \frac{42}{100} = 0.42$

99% confidence level

So $\alpha = 0.01$ , z is the value of Z that has a p-value of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 - 2.575\sqrt{\frac{0.42*0.58}{100}} = 0.293$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.42 + 2.575\sqrt{\frac{0.42*0.58}{100}} = 0.547$

The 99% confidence interval for the true population proportion of people with kids is (0.293, 0.547).

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2 years ago

Write the equation in slope-intercept form of the line that has a slope of -7/8 and contains the point (-4, 9).

lubasha [3.4K]

Answer:

The equation of the line is y = -7/8x + 11/2

Step-by-step explanation:

Since we have the slope and a point to start, we can use point-slope form to find the equation.

y - y1 = m(x - x1)

Use the slope for m and the point at (x1, y1). Then solve for y.

y - 9 = -7/8(x + 4)

y - 9 = -7/8x - 7/2

y = -7/8x + 11/2

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3 years ago

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mart [117]

Answer: 104.375 (104 if you need it rounded)

Step-by-step explanation: So the question here is only asking for one angle, so you take the sum of all of the angles (835) and divide it by the total amount of sides (8). and you have your answer.

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2 years ago

Read 2 more answers

Suppose that profit for a particular product is calculated using the linear equation: Profit = 20S + 3D. Which of the following

uranmaximum [27]

Answer:

b. S = 405, D = 0

Step-by-step explanation:

We have been given that profit for a particular product is calculated using the linear equation: $\text{Profit}=20S+3D$ . We are asked to choose the combinations of S and D that would yield a maximum profit.