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Marianna [84]
3 years ago
11

WILL GIVE BRAINLIEST PLEASE HELP: In rectangle ABCD the diagonals intersect each other at point O and m ABD = 30 degrees. Find B

C if AC = 16 in.
Mathematics
2 answers:
NISA [10]3 years ago
7 0

Answer:

AngleCOD=angle AOB=62°

As AO=OC=BO=OD

In triangle OCD, OC=OD

Hence angle ODC=(180–62) /2( sum of angle of triangle is 180°)

=118/2 =59°

Step-by-step explanation:

Vikki [24]3 years ago
3 0

Answer:

8

Step-by-step explanation:

We know that ABD is 30 degrees. To find BC, we need to use sin.

Equation:

BC = 16*sin(30 degrees) I recommend using a calculator to find the sine if you don't know what it means and how to use it. Sine is basically the side length opposite of the angle over the hypotenuse of the right triangle.

BC = 16*0.5

BC = 8

Sorry, I couldn't find an image.

Hope this helps!

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Answer:

Systolic on right

\hat{CV} =\frac{18.68}{127.5}=0.147

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So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

Step-by-step explanation:

Assuming the following data:

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The coefficient of variation is defined as " a statistical measure of the dispersion of data points in a data series around the mean" and is defined as:

CV= \frac{\sigma}{\mu}

And the best estimator is \hat {CV} =\frac{s}{\bar x}

Systolic on right

We can calculate the mean and deviation with the following formulas:

[te]\bar x = \frac{\sum_{i=1}^n X_i}{n}[/tex]

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For this case we have the following values:

\bar x = 127.5, s= 18.68

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So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

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