The answer would be 9 because if you add one more 3rd to the number 6 that would be 3 so 3 * 3 = 9 there are 9 people in the book club
This is the same as showing the following system of equations doesn't have a solution:
or in matrix form,
The quickest way to check if there is a solution is to check whether the coefficient matrix is invertible. If its determinant is 0, then it is not invertible.
And the quickest way to show that the determinant is 0 is by observing that the third row is a linear combination of the first two rows:
(-2, 9, 6) - (-3, 2, 1) = (-2 + 3, 9 - 2, 6 - 1) = (1, 7, 5)
So there are indeed no such scalars <em>c₁</em>, <em>c₂</em>, and <em>c₃</em>.
The mean absolute deviation of the given scores of Robin as shown in the diagram atatched is: 5.2.
<h3>What is the Mean Absolute Deviation of a Data?</h3>
The mean absolute deviation of a data set is determined by finding the average of the distance of each data point from the mean of the data set.
Given that the distance from the mean are: 8, 1, 5, 0, 12,
Mean absolute deviation = (8 + 1 + 5 + 0 + 12)/5
Mean absolute deviation = 26/5
Mean absolute deviation = 5.2.
Learn more about mean absolute deviation on:
brainly.com/question/447169
Answer:
2520 in³
Step-by-step explanation:
The volume of a prism is calculated as
V = Ah ( A is the area of the base and h the height )
A = bh( b is the base and h the height ), thus
A = × 14 × 18 = 7 × 18 = 126 in²
V = 126 × 20 = 2520 in³
Use the algorithm method. Then multiply. The answer should be 135.
If you don't know what algorithm is, it's when you put a number over a number. And multiply it.