Segments AB and CD bisect each other at point O. Prove that ∆ACD is congruent to ∆BDC.
1 answer:
Answer:
Step-by-step explanation:
TO prove this we have to prove one of following.
SSS ( all three sides are equal )
SAS ( two sides and their middle angle is equal )
ASA ( two angles and their middle side are equal )
I am proving both triangles equal by ASA method.
The complete proof and explanation is given in attachment below.
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Answer:
1. X= - -4+y-z/3
Step-by-step explanation:
1. -6x-2y+2z=-8
1. Subtract -2y+2z from both sides -6x-2y+2z-(-2y+2z)=-8-(-2y+2z)
1. Simplify -6x=-8+2y-2z
1. Divide both sides by -6 -6x/-6 = - 8/-6+ 2y/-6 - 2y/-6
Answer: The option B. 1.9 is correct
Explanation:
We are given the below information:
x Probability P(x)
0 0.2
1 0.1
2 0.4
3 0.2
4 0.1
The expected value of x is given below:
Therefore, the expected value of x is 1.9