In the number 3.637945 the place value of the 9 is ??
2 answers:
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These statements are true:
This is <em>true</em> because of the definition of a rhombus which states that opposite sides are parallel.
This is <em>true </em>because the diagonals of a rhombus bisect each other at right angles.
This is<em> true</em> because the four sides of a rhombus are all equals.
This is also <em>true</em>. Two angles are supplementary when they add up to 180 degrees. Angles in rhombus are equal two to two. Let's name:
Then it is true that:
Besides, a rhombus is a quadrilateral and it is true that the interior angles of a quadrilateral add up to 360 degrees, thus:
This is <em>true</em> because of the definition of a rhombus which states that opposite sides are parallel.
This is <em>true </em>because the diagonals of a rhombus bisect each other at right angles.
This is<em> true</em> because the four sides of a rhombus are all equals.
This is also <em>true</em>. Two angles are supplementary when they add up to 180 degrees. Angles in rhombus are equal two to two. Let's name:
Then it is true that:
Besides, a rhombus is a quadrilateral and it is true that the interior angles of a quadrilateral add up to 360 degrees, thus:
Answer:
See below for answers and explanations
Step-by-step explanation:
<u>Part A</u>
Assuming that conditions have been met for the interval, we use the formula where
represents the sample mean,
represents the critical value,
represents the sample standard deviation, and
is the sample size.
The critical value of for an 80% confidence level with degrees of freedom
is equivalent to
Thus, we can compute the confidence interval:
Therefore, we are 80% confident that the true mean age of all customers is between 30.17 and 35.11 years.
<u>Part B</u>
The margin of error is