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2 years ago

Will mark brainliest! The ratio of the angles in a triangle is 2:3:5. What are the angle measures.

Mathematics

2 answers:

Temka [501]2 years ago

5 0

B

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4vir4ik [10]2 years ago

5 0

Answer:

Step-by-step explanation:

The measures of the angles are 2x, 3x, and 5x.

2x + 3x + 5x = 180°

x = 18°

2x=36°, 3x=54°, 5x=90°

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2 years ago

Students in a statistics class are conducting a survey to estimate the mean number of units students at their college are enroll

Papessa [141]

Answer:

The 95% confidence interval for the average number of units that students in their college are enrolled in is between 11.7 and 12.5 units.

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

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Now, we have to find a value of T, which is found looking at the t table, with 44 degrees of freedom(y-axis) and a confidence level of $1 - \frac{1 - 0.95}{2} = 0.975$ . So we have T = 2

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The lower end of the interval is the sample mean subtracted by M. So it is 12.1 - 0.4 = 11.7 units

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2 years ago

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morpeh [17]

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3 years ago

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Ksenya-84 [330]

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sertanlavr [38]

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