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3 years ago

The value of X is:A)27B)7C)5D)√21E)√27

Mathematics

2 answers:

saul85 [17]3 years ago

6 0

The answer is E

To solve this you need to use the Pythagorean Theorem which is a^2+b^2=c^2. This formula can help you find the missing length of any side of a right triangle.

Hope this helped!

liq [111]3 years ago

3 0

Answer:

Step-by-step explanation:

6^2=x^2+3^2

X^2=36-9

$\sqrt{27}$

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3 years ago

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3 years ago

Weight of a rock: In a geology course, students are learning to use a balance scale to accurately weigh rocks. One student plans

statuscvo [17]

Answer:

The student who weighted the rock 5 times has a 95% confidence interval of (25.2, 29.1) which is guaranteed to be more wider (less precise) than the other student who weighted the rock 20 times.

Step-by-step explanation:

What is Confidence Interval?

The confidence interval represents an interval that we can guarantee that the target variable will be within this interval for a given confidence level.

The confidence interval is given by

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As the sample size is decreased the corresponding margin of error increases which results in wider confidence interval which means smaller precision.

The student who weighted the rock 5 times has a 95% confidence interval of (25.2, 29.1) which is guaranteed to be more wider (less precise) than the other student who weighted the rock 20 times.

We can say with 95% confidence that the true mean weight of the rock is within the interval of (25.2, 29.1).

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3 years ago

The value of X is:A)27B)7C)5D)√21E)√27​

The value of X is:A)27B)7C)5D)√21E)√27