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denis-greek [22]
2 years ago
7

Find x in the diagram below.

Mathematics
2 answers:
Pavel [41]2 years ago
6 0

Answer:

x=110

Step-by-step explanation:

TEA [102]2 years ago
5 0

Answer:

20°

Step-by-step explanation:

1) Opposite angles are equal, so the opposite will be 140°.
2) Then, you do 140+110+90+90 (since A and D are at right angles) which gets you 430°

3) Finally, since its a pentagon, you do 540° - 430° which is 110°

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The formula to find the confidence interval for mean :

\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}} , where \overline{x} is the sample mean , \sigma is the population standard deviation , n is the sample size and z_c is the two-tailed test value for z.

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