∈ ≤ ≥
-6 ≤ 2x + 6 ≤ 6 ( seperate the two inequalities)
2x + 6 ≥ - 6
2x + 6 ≤ 6 (solve the inequalities)
x ≥ -6
x ≤ 0 (find the intersection)
solution is : x ∈ { -6, 0 }
The secant tangent theorem states that the distance from (y to the tangent point x) squared = the external segment * length of the secant.
Put in plane English
YX^2 = YV * YZ
YV = 9
YZ = 9 + 19 = 28
YX^2 = 28 * 9
yX^2 = 252
YX = sqrt(252)
YX = 15.87
Answer:
mean (average) is 17.6
mean absolute deviation is 15.2
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<em>Step-by-step explanation:</em>
to find <em>mean</em>, u add up all your numbers and divide by how many there are...
to find <em>mean absolute deviation</em> you find the mean of the data and subtract that amount to each of your data pieces...
then u find absolute value of each of them (to make them all positive)
then u add all of those numbers up and divide by how many there are, and that is your answer!!
<em>Hope this helps u in the future!!</em>
1.09. You want to add all the numbers together which would give you 12 and divide that by how many numbers there are which is 11. So 12 divided by 11 would give you roughly 1.09 !