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OverLord2011 [107]
2 years ago
7

Please help me it says find the measure of c and b and I don’t know how if you can help me with this exam it would be much appre

ciated

Mathematics
1 answer:
noname [10]2 years ago
6 0

Answer:

b=20

C=160

Step-by-step explanation:

160+b= 180 (sum of angle on the straight line)

b=180-160

b=20

b+c =180 (sum of angle on the straight line)

20+c=180

c=180-20

C=160

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3 years ago
An arithmetic sequence has this recursive formula: (a^1 =8, a^n= a^n-1 -6
eduard

Answer:

a_n = 8 + (n - 1) (-6)

Step-by-step explanation:

Given

a_1 = 8

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Required

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3 years ago
In 2004, a survey on computer crime indicated that 7% of reported unauthorized uses of business Web sites came from inside the c
masya89 [10]

Answer:

a) H0 : P = 0.07

   Ha : P ≠ 0.07

b) p -value = 0.1770

Step-by-step explanation:

P = 7% = 0.07

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p = x / n = 7 / 163 = 0.043

<u>a) Using a significance level ( ∝ ) of 0.05, estimate the appropriate hypothesis</u>

H0 : P = 0.07

Ha : P ≠ 0.07

conduct a  Z- test statistic

Z = ( p - P ) / \sqrt{\frac{P(1-P)}{n} }

  = ( 0.043 - 0.07 ) / \sqrt{\frac{P(1-P)}{n} }  =  - 1.35

Critical value ( Z₀.₀₂₅ ) = ± 1.96

<em>we fail to reject H0 given that | z | < Zcritical because there is not enough evidence to conclude that proportion change</em>

<u>b) Determine the p-value of the test </u>

P-value = P ( | Z | > Z )

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The p-value ( 0.1770 ) > ∝ ( 0.05 ) hence we fail to reject H0 ( i.e. the conclusion agrees with part a above )

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