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4 years ago

I need help answering this

Mathematics

1 answer:

natita [175]4 years ago

3 0

Answer:

Step-by-step explanation:

The dot is filled in, meaning the inequality symbol must have an line under it.

Since there's numbers on both sides, you have to simplify so that c is equal to, or greater than 2.

First one;

c-5≥-3

+5 +5

c≥2

It just so happens that this is the correct one, but in the future you may have to go through all.

Hope this helps! If I'm wrong, sorry <3 I haven't done this stuff in awhile.

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lara31 [8.8K]

I think you just subtract 59 and 11 but i could be wrong

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3 years ago

Read 2 more answers

An amount of $45,000 is borrowed for 13 years at 6.75% interest, compounded annually. If the loan

Ugo [173]

Answer:

$104850

Step-by-step explanation:

Given data

Principal= $45,000

Time = 13 years

Rate= 6.75%

the compound interest expression is

A= P(1+r)^t

A=45000(1+0.0675)^13

A= 45000(1.0675)^13

A= 45000*2.33

A= $104850

Hence the final amount will be $104850

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3 years ago

What is this expression in simplest form?<br> x²+x-2/x³-x²+2x-2

Nonamiya [84]

Answer:

Simplified to lowest possible would be $\frac{x +2}{x^{2} + 2}$

Step-by-step explanation:

4 0

3 years ago

Hi please i need the step bye step solution. thank you ♥

wlad13 [49]

Answer:

Step-by-step explanation:

3, 6, 9...

120 = 3+(n-1)3

120 = 3+3n-3

120 = 3n

120 / 3 = 3n / 3

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3 0

3 years ago

You recently sent out a survey to determine if the percentage of adults who use social media has changed from 66%, which was the

il63 [147K]

Answer:

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

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

Of the 2809 people who responded to survey, 1634 stated that they currently use social media.

This means that $n = 2809, \pi = \frac{1634}{2809} = 0.5817$

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 $Z = 2.327$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 - 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.56$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.5817 + 2.327\sqrt{\frac{0.5817*4183}{2809}} = 0.6034$

The 98% confidence interval estimate of the proportion of adults who use social media is (0.56, 0.6034).

6 0

3 years ago