Answer:
Skew lines
Step-by-step explanation:
Skew lines are two straight lines in three dimensional space that are neither parallel nor do they intersect Examples of skew lines are the front sidewalk and a line that goes along one of the top edges of the house, or lines that connecting opposite edges of a regular tetrahedron
Other examples of skew lines can be found in non co-planar non parallel, parts of a bridge.
Answer:
a,d
Step-by-step explanation:
The answer I think 174 degrees.
Using the given table, it is found that the mean number of children per household for these families is of 2.33.
<h3>What is the mean?</h3>
The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.
Researching the problem on the internet, the table states that:
- 2 households have 4 children.
- 16 households have 2 children.
- 13 households have 3 children.
- 5 households have 1 children.
The total number of children is given by:
T = 2 x 4 + 16 x 2 + 13 x 3 + 5 x 1 = 84
Hence the mean number of children for the 36 households is given by:
M = 84/36 = 2.33.
More can be learned about the mean of a data-set at brainly.com/question/24628525
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4x + 3y = -2
2x - 2y = -8....multiply by -2
----------------
4x + 3y = -2
-4x + 4y = 16 (result of multiplying by -2)
---------------add
7y = 14
y = 14/7
y = 2
2x - 2y = -8
2x - 2(2) = -8
2x - 4 = -8
2x = -8 + 4
2x = -4
x = -4/2
x = -2
solution is (-2,2)
