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3 years ago

I NEED HELP ASAP! WILL MARK YOU AS BRAINLIEST!

Mathematics

2 answers:

Dima020 [189]3 years ago

7 0

Coordinate of C;

$( \frac{(1 - 3)}{2} , \frac{(2 - 4)}{2} )$

apply the formulae, replace the variables with the given values.

Slope;

$m = \frac{(4 - 2)}{(3 - 1)}$

again, apply the formulae, replace the variables with the given values.

calculate it urself, ive done enough

atroni [7]3 years ago

4 0

Answer:

Answers below in bold.

Step-by-step explanation:

Midpoint formula:

$(\frac{1+3}{2} , \frac{4+2}{2} )$ =

$(\frac{4}{2} , \frac{6}{2} )=$

(2, 3)

Point C is on the point (2, 3)

Slope:

$\frac{4-2}{3-1} =$

$\frac{2}{2}$ =

The slope is going at y=x+1

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kondor19780726 [428]

Answer:

D. 76

Step-by-step explanation:

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3 years ago

Several years ago, 50% of parents who had children in grades K-12 were satisfied with the quality of education the students r

galina1969 [7]

Answer:

The 95% confidence interval for the proportion of parents that are satisfied with their children's education is (0.4118, 0.4618). 0.5 is not part of the confidence interval, so this represents evidence that parents' attitudes toward the quality of education have changed.

Step-by-step explanation:

We have to see if 50% = 0.5 is part of the confidence interval.

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

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For this problem, we have that:

$n = 1095, \pi = \frac{478}{1095} = 0.4365$

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:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4365 - 1.96\sqrt{\frac{0.4365*0.5635}{1095}} = 0.4118$

The upper limit of this interval is:

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3 years ago

Is 226.08cm to the third power the correct response?

drek231 [11]

Surface Area of a cylinder 2(π•r²)+(2π•r)•h

So

If the diameter is 8 then the radius is 4. the height is 5.

so you have, 2(3.14•4²)+(2•3.14•4)•5

solve. PEMDAS
Parentheses & Exponents first.
2(3.14•16)+(2•3.14•4)•5
2(50.24)+(6.28•4)•5
2(50.24)+(25.12)•5
Multiplication & Division second (left to right)
100.48+125.6
Add & Subtract (left to right)
226.08cm

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3 years ago

There are four bars in a Kit Kat candy bar.you divide each of the four bars in half write an expression to show the math draw a

Nookie1986 [14]

You will end up with 8 bc if you cut it in half it is dividing so you would do 4×2 and the answer is 8

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4 years ago

Read 2 more answers

Can you make all the numbers from 1 to 20 using 4 fours?

Effectus [21]

Answer: no you can't you can only use 5 numbers when going by 4's

Step-by-step explanation: 4, 8, 12, 16, 20