Answer:
C
Step-by-step explanation:
THe mean deviation is the sum of all the differences of the values from the mean and then we divide by the number of values in the data set.
First, lets find the mean (sum of all the numbers divided by number of numbers):
Mean = (271+354+296+301+333+326+285+298+327+316+287+314)/12 = 309
Now, the mean deviation:
|(271-309+(354-309+(296-309+.....(314-309))|/12 = <u>19.33</u>
<u>The mean absolute deviation (MAD) is equal to 19.33</u>
<u>Correct answer is C</u>
Answer:
=101x−35y
Step-by-step explanation:
=78x+−34y+23x+−y
Combine Like Terms:
=78x+−34y+23x+−y
=(78x+23x)+(−34y+−y)
=101x+−35y
Answer:
10
Step-by-step explanation:
2^0 = 1
5^1 = 5
4^3 = 4 x 4 x 4
=> 16 x 4
=> 64
=> 1 + 5 + 64 / 7
=> 6 + 64 / 7
=> 70 / 7
=> 10
So, the answer is 10
Answer:
- 4 ≤ x < 2
Step-by-step explanation:
The interval is [ - 4, 2 )
The bracket on the left side indicates x can equal - 4
The parenthesis on the right side indicates x cannot equal 2
Thus the inequality represented by the graph is
- 4 ≤ x < 2
Answer:
23ft approx
Step-by-step explanation:
Given data
Distance from tree= 10ft
Length of ladder= 25ft
We can find the height of the tree by applying the Pythagoras theorem
z^2= x^2+y^2
z= The height of the ladder
x= The distance from the tree
y= The height of the tree
25^2= 10^2+ y^2
625=100+y^2
625-100=y^2
525=y^2
y= √525
y= 22.91
Hence the height of the tree is 23ft approx
