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1 year ago

Geometry please help

Mathematics

1 answer:

Afina-wow [57]1 year ago

5 0

Answer: 31

Step-by-step explanation:

Assuming this is a rhombus, then the diagonals are perpendicular, meaning angle MQN measures 90 degrees.

Now, if we consider triangle MNQ, we know that angles in a triangle add to 180 degrees, meaning NMQ measures 31 degrees.

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What is the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81?

Marizza181 [45]

Answer: d. 1.3333

Step-by-step explanation:

We know that the standard error of a sampling distribution is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$

, where $\sigma$ = Population standard deviation.

n= Sample size.

AS per given , we have

$\sigma =12$

n=81

Then, the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81 will be :-

$S.E.=\dfrac{12}{\sqrt{81}}$

$=\dfrac{12}{\sqrt{9^2}}=\dfrac{12}{9}\\\\=\dfrac{4}{3}\\\\\approx1.3333$

Hence, the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81 is 1.3333.

Thus the correct answer is d. 1.3333 .

6 0

2 years ago

Please answer, Thank you so much in advance

Gre4nikov [31]

D 8x-3 because must add them all together

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2 years ago

Find the simple interest on Birr 700 at 12% rate for 3 months

Travka [436]

Answer:

252

Step-by-step explanation:

700 mutliply by 12 divided by 100 is equall to 84
84multiply by 3
is equall to 252

6 0

2 years ago

Write in simplest form 12:3

prisoha [69]

To put this into simplest form, you can see what common factors they have. 3 can go into 12, so we can divide 12 by 3.
12÷3= 4
3÷3=1
So 4:1 is the simplest form of 12:3.
Tell me if this helps!!

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2 years ago

Read 2 more answers

Which equation has a vertex of (-3, 4)?

babunello [35]

Answer:

Where are the equations?

Step-by-step explanation:

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1 year ago