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ivanzaharov [21]
2 years ago
15

Yes or no?????!!!!!!!!

Mathematics
2 answers:
siniylev [52]2 years ago
7 0

Answer:

Yes they are similar

Step-by-step explanation:

They have the same angle measurements.

Verizon [17]2 years ago
4 0

Answer:

yes they are similar

Step-by-step explanation:

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A researcher wants to construct a 90% confidence interval for the proportion of elementary school students in Seward County who
dezoksy [38]

Answer:

The sample  size is  n =68

Step-by-step explanation:

    The population proportion is  \^ p =  0.50

     The margin of error is  E =  0.1

From the question we are told the confidence level is  90% , hence the level of significance is    

      \alpha = (100 - 90 ) \%

=>   \alpha = 0.10

Generally from the normal distribution table the critical value  of  \frac{\alpha }{2} is  

   Z_{\frac{\alpha }{2} } =  1.645

Generally the sample size is mathematically represented as  

    n = [\frac{Z_{\frac{\alpha }{2} }}{E} ]^2 * \^ p (1 - \^ p )

=>  n = [\frac{1.645 }{0.1} ]^2 * 0.50  (1 - 0.50 )

=>  n =68

     

6 0
3 years ago
AOC and BOD are diameters of a circle, centre O. Angles BAD and CDA are 90°. Prove that triangle AND and triangle DCA are congru
ololo11 [35]

Answer:

By using SAS which stands for Side, Angle, Side.

Step-by-step explanation:

This means that if we have two angles and side measures that are equal to the corresponding angles and side measures of the other triangle then they are congruent.

5 0
2 years ago
Can somebody help me figure this problem out? 6(2+b)
aivan3 [116]

Answer: 12 + 6b

Step-by-step explanation:

Just times both by 6

4 0
3 years ago
Solve the formula V = pi r2h for r
Andrei [34K]

Answer:

V=\pi \times r^{2}\times h\\\\\Longrightarrow V=r^{2}\times \left( \pi \times h\right)  \\\\\Longrightarrow r^{2}=\frac{V}{\pi \times h} \\\\\Longrightarrow r=\sqrt{\frac{V}{\pi \times h} }

6 0
1 year ago
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I Believe it is 80% but I am not sure
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3 years ago
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