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2 answers:
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Answer: x = 20
Step-by-step explanation:
Sine when two lines intersect then we obtained two pairs of congruent vertically opposite angles,
Here, 3x + 50 and 6x - 10 are vertical opposite angles made by the intersection of lines,
⇒ 3 x + 50 = 6 x - 10
⇒ 3 x = 6 x - 10 - 50
⇒ 3 x - 6 x = -60
⇒ - 3 x = - 60
⇒ x = 20
Hence, the value of x is 20.
Answer:
See explaination and attachment
Step-by-step explanation:
Given the parameters we have, we want to Construct a 90% confidence interval for the true mean of the population.
Hence, making use of these parameters;
sample size =100
Std deviation =25
mean if the sample=253.
Therefore solving for 90% confidence interval for the true mean of the population. We will apply a formula.
Please kindly check attachment gor the step by step solution for all the questions.
