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sergiy2304 [10]
3 years ago
7

Help Needed -Thanks​

Mathematics
1 answer:
Gelneren [198K]3 years ago
5 0

Answer:

− 2 √ 3

Step-by-step explanation:

Simplify the radical by breaking the radicand up into a product of known factors, assuming positive real numbers.

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Join the zoommmmmmmmmmmmml
amm1812

Answer:

The question is imcomplete.

Step-by-step explanation:

There is no zoom link or real question.

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3 years ago
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Levi can text 88 words in 16 minutes. At this rate, how many words could he text in 12 minutes?
zubka84 [21]

Answer:

multiply

Step-by-step explanation:88 16 then 12

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Expand.<br> If necessary, combine like terms.<br> (X+ 6)(x+6)=
lapo4ka [179]

Answer:

Step-by-step explanation:

Use FOIL method

(x + 6)(x +6) = x*x + x*6 +6*x + 6*6

                  = x² +<u> 6x + 6x</u> + 36    {add like terms}

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3 years ago
1. A light rail travels at a rate of 165 miles per
Marianna [84]

Answer:

495 miles

Step-by-step explanation:

If the light rail goes 165 miles per hour (mph) and if it was to travel for 3 hours you would multiply 165 mph x 3 = 495

3 0
3 years ago
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4. According to statistics reported on IN-CORP a surprising number of motor vehicles are not covered by insurance. Sample result
son4ous [18]

Answer:

a) 0.23

b) The 95% confidence interval for the population proportion is (0.1717, 0.2883).

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}.

Point estimate

The point estimate is:

\pi = \frac{46}{200} = 0.23

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue 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}} = 0.23 - 1.96\sqrt{\frac{0.23*0.77}{200}} = 0.1717

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.23 + 1.96\sqrt{\frac{0.23*0.77}{200}} = 0.2883

The 95% confidence interval for the population proportion is (0.1717, 0.2883).

5 0
3 years ago
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