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Travka [436]
3 years ago
7

PLEASE HELP ME LINK IS BELOW

Mathematics
2 answers:
n200080 [17]3 years ago
8 0

Answer:

55

Step-by-step explanation:

Since there is a right angle at the bottom, we know that x and angle 35 degrees form a right angle so 90 minus 35 is 55.

DaniilM [7]3 years ago
5 0

Answer:

95 d

Step-by-step explanation:

125-35=95 degrees

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Nationwide, it is estimated that 40% of service stations have gas tanks that leak to some extent. A new program in California is
fredd [130]

Answer:

Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .

Step-by-step explanation:

The sample proportion is p2= 7/27= 0.259

and q2= 0.74

The sample size = n= 27

The population proportion = p1= 0.4

q1= 0.6

We formulate the null and alternate hypotheses that the new program is effective

H0: p2> p1   vs  Ha: p2 ≤ p1

The test statistic is

z= p2- p1/√ p1q1/n

z= 0.259-0.4/ √0.4*0.6/27

z=  -0.141/0.09428

z= -1.496

The significance level ∝ is 0.05

The critical region for one tailed test is z ≤ ± 1.645

Since the calculated value of z= -1.496 does not fall in the critical region z < -1.645 we conclude that the new program is effective. We fail to reject the null hypothesis .

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3 years ago
Please help. The picture is below
mihalych1998 [28]

Answer:

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Step-by-step explanation:

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Please help with an explanation
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Answer:

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Step-by-step explanation:

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