2 years ago

If you know the answer comment Please

Mathematics

1 answer:

leonid [27]2 years ago

3 0

Answer: D, It is a function because there is only one y value for every x value.

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The scores on a standardized test are normally distributed. If a random sample of standardized test scores is taken and the conf

evablogger [386]

Answer: The sample mean $(\overline{x}) = 517$

Step-by-step explanation:

The confidence interval is given by :-

Sample mean ± Margin of error

Given : The scores on a standardized test are normally distributed. If a random sample of standardized test scores is taken and the confidence interval is (497,537).

i.e. Sample mean - Margin of error = 497 ..(i)

Sample mean + Margin of error=537 ..(ii)

Adding (1) and (2), we get

2 (Sample mean) = 1034

⇒Sample mean = 517

Hence, the sample mean $(\overline{x}) = 517$

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3 years ago

Can u help with problems 18 and 19 please it would be helpful

pantera1 [17]

I think this is right but I am really sorry if it is not

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2 years ago

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aniked [119]

Answer:

Step-by-step explanation:

y=2x+4 I check over it to make sure it was right hope this helps

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2 years ago

Which best describes what is happening in section B

Dennis_Churaev [7]

Answer:

Jamal is traveling at a constant speed.

Step-by-step explanation:

because it's a line going straight and not down.

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2 years ago

60 degrees in radius

jekas [21]

To convert to radians, multiply the number of degrees by π/180°.
$60 * \frac{ \pi }{180} \\ \frac{60 \pi }{180} \\ \frac{ \pi }{3}$

60° in radians is π/3.

Hope this helps!

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2 years ago