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2 years ago

Help pls I need help with this question anyone??

Mathematics

1 answer:

Neporo4naja [7]2 years ago

4 0

Answer:

I think red

Step-by-step explanation:

SRY i I am wrong

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um am playing a game i forgot the math anwser the qusitoin says that the sum is 9 and thier diffrince is 1 what are the two numb

Virty [35]

Answer:

Step-by-step explanation:

All you have to do it subtract 9 from 1 than that's it your answer.

3 0

2 years ago

Find the sample size required to achieve the given margin of error with SD = 51.02 and z - score = 1.96. Round your answer to th

coldgirl [10]

Answer:

The sample size required is 2500.

Step-by-step explanation:

z-score:

In function of the margin of error M, the z-score is given by:

$Z = \frac{M}{\frac{\sigma}{\sqrt{n}}} = \frac{M\sqrt{n}}{\sigma}$

In this question, we have that:

$\sigma = 51.02, M = 2, Z = 1.96$

$Z = \frac{M\sqrt{n}}{\sigma}$

$1.96 = \frac{2\sqrt{n}}{51.02}$

$2\sqrt{n} = 51.02*1.96$

$\sqrt{n} = \frac{51.02*1.96}{2}$

$(\sqrt{n})^2 = (\frac{51.02*1.96}{2})^2$

$n = 2500$

The sample size required is 2500.

3 0

2 years ago

Please don’t troll include work

zheka24 [161]

4 1/8-2 3/4= 4 1/8 - 2 6/8= 1 3/8

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8 9/12 + 2 3/8= 8 18/24 + 2 9/24= 10 27/24 = 11 3/24= 11 1/8

3 1/3 - 1 1/2= 3 2/6 - 1 3/6 = 2 8/6 - 1 3/6= 1 5/6

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2 years ago

What is the equation of the parabola with a directrix at y = -4 and focus (0, 4)?

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago