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vichka [17]
3 years ago
7

What is x, the distance between points A and A'?

Mathematics
2 answers:
RoseWind [281]3 years ago
5 0

what a madlad respeckt

adoni [48]3 years ago
4 0

Answer:

C on edge 13.6

Step-by-step explanation:

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| How do you write 1.4 x 102 in standard form?
Anit [1.1K]

Answer:

1.4279999999999999 x 10²

Step-by-step explanation:

3 0
3 years ago
Find the equation of the line that passes through (3,1) and is parallel to y=2x+1.
creativ13 [48]

9514 1404 393

Answer:

  y = 2x -5

Step-by-step explanation:

The parallel line will differ only in the value of c. That can be found using the given point.

  y = mx +c

  c = y -mx . . . . . . subtract mx to solve for c

  c = 1 -2·3 = -5 . . . . . . the value of m is 2 in the given equation (x, y) = (3, 1)

The equation of the parallel line is ...

  y = 2x -5

7 0
3 years ago
35. In a simple random sample of 25 high school students, the sample mean of the SAT scores was 1450, and the sample variance wa
Tatiana [17]

Answer:

1450-2.0\frac{30}{\sqrt{25}}=1450-12    

1450+2.0\frac{30}{\sqrt{25}}=1450+12    

And the best option would be:

c. 1450 +/- 12

Step-by-step explanation:

Information provided

\bar X=1450 represent the sample mean for the SAT scores

\mu population mean (variable of interest)

s^2 = 900 represent the sample variance given

n=25 represent the sample size  

Solution

The confidence interval for the true mean is given by :

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

The sample deviation would be s=\sqrt{900}= 30

The degrees of freedom are given by:

df=n-1=2-25=24

The Confidence is 0.954 or 95.4%, the value of \alpha=0.046 and \alpha/2 =0.023, assuming that we can use the normal distribution in order to find the quantile the critical value would be z_{\alpha/2} \approx 2.0

The confidence interval would be

1450-2.0\frac{30}{\sqrt{25}}=1450-12    

1450+2.0\frac{30}{\sqrt{25}}=1450+12    

And the best option would be:

c. 1450 +/- 12

3 0
3 years ago
The population of Valleytown is 5,000, with an annual increase of 1,000. Can the expected population for Valleytown be modeled w
Vladimir [108]

Hello there!

The expected population for Valleytown cannot be modeled with an exponential function since it is not being multiplied nor divided. This would be an arithmetic function/sequence since it is adding. It also has a fixed increase value while in an exponential function it changes.

6 0
3 years ago
FREE POINTS BECAUSE IM EXITED FOR TOMAROW BECAUSE IM TRYING OUT FOR CHEER AND THEN SO I CAN CHEER FOR MY BROTHER WHEN HE PLAYS F
kolbaska11 [484]

Answer:

GOOD LUCK TO HIM AND YOU!! YOU GOT THIS!!! Be sure to have fun though.

6 0
3 years ago
Read 2 more answers
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