I have no idea what to do help Part1
2 answers:
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Answer:
(0.5, 0.5)
Step-by-step explanation:
Use the midpoint formula:
The points are:
- A(-2, 4)
- C(3, -3)
Therefore, the midpoint between A and C is located at (0.5, 0.5).
Answer:
x=4 and y=2
Step-by-step explanation:
Name the triangles as ABC and DEF,
Now, since both the triangles are congruent by HL rule, therefore
(1)
and (2)
Substituting the value of in equation (1), we get
Therefore, Putting y=2 in equation (2),
Answer:
21, 144, 12
Step-by-step explanation:
Given that a sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.
Let X be the distance in yard.
i.e. each entry of x is multiplied by 3.
New mean variance std devition would be
E(3x) =
Var (3x) =
Std dev (3x) =
Thus we find mean and std devition get multiplied by 3, variance is multiplied by 9