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3 years ago

2. Type: Hv G H (3,4), (8,4) The length of GH is 3 units.

Mathematics

1 answer:

alexdok [17]3 years ago

3 0

Answer:

5 units

Step-by-step explanation:

(3,4), (8,4)

Since the y coordinates do not change, we are only concerned with x

8-3 = 5

The length of GH is 5 units

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A spider ate 2 5 % 25%25, percent more bugs this month than last month. The spider ate 8 88 bugs last month.

ankoles [38]

25% of 88 =

0.25 × 88 = 22

88 + 22 = 110

Answer = 110

Hope this helped☺☺

4 0

3 years ago

Suppose that the population of the scores of all high school seniors who took the SAT Math (SAT-M) test this year follows a Norm

Vlad1618 [11]

Answer:

Confidence = $1-\alpha=1-0.01=0.99$

And then the confidence level would be given by 99%

Step-by-step explanation:

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

Assuming the X follows a normal distribution

$X \sim N(\mu, \sigma)$

The distribution for the sample mean is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\bar x =512$ represent the sample mean

$\sigma=100$ represent the population standard deviation

n= 100 sample size selected.

The confidence interval is given by this formula:

$\bar X \pm z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$ (1)

The marginof error for this case is given by Me=25.76. And we know that the formula for the margin of error is given by:

$Me=z_{\alpha/2} \frac{\sigma}{\sqrt{n}}$

$25.76=z_{\alpha/2} \frac{100}{\sqrt{100}}$

And we can find the critical value $z_{\alpha/2}$ like this:

$z_{\alpha/2}=\frac{25.76(\sqrt{100})}{100}=2.576$

And we know that on the right tail of the z score =2.576 we have $\alpha/2$ of the total area. We can find the area on the right of the z score using this excel code:

"=1-NORM.DIST(2.576,0,1,TRUE)" or using a table of the normal standard distribution, and we got 0.004998= $\alpha/2$ , so then $\alpha=0.00498*2=0.009995 \approx 0.01$ , and then we can find the confidence like this:

Confidence = $1-\alpha=1-0.01=0.99$

And then the confidence level would be given by 99%

8 0

3 years ago

Can anyone help me with this

ANTONII [103]

Answer:

Sure, what do you need

Step-by-step explanation:

4 0

2 years ago

1/4,7/10,1/4,6/10 least to greatest

Pepsi [2]

Answer:

1/4, 1/4, 6/10, 7/10

Step-by-step explanation:

1/4 = 0.25

7/10 = 0.7

6/10 = 0.6

7 0

3 years ago

I need to check a number line of 0 to 4 using 1/3

vivado [14]

Draw a straight line. Label the left side "0" and then make lines with
"2" "3" and "4".

1/3 means it i 1/3rd of 1. Which means you need to divide everything from 0 - 1 into 2 segments. The first segment on the left side is your 1/3rd spot. The next one is your 2/3rd place, and then finally the 1 is your 3/3 (or one whole.)

7 0

3 years ago