The first inequality(A) is a function to used it. based on the distance rather than the other
Answer:
There are 18 ways to fill out the answer sheet so that eight answers are correct and one is incorrect.
Step-by-step explanation:
Consider the provided information.
A multiple choice test consists of nine questions, each of which has three choices.
We need to find the number of ways so that eight answers are correct and one is incorrect.
There is only one correct answer and for incorrect answer we have only 2 choices because 1 choice is correct.
Thus the number of possible ways are:
(2×1×1×1×1×1×1×1×1)+(1×2×1×1×1×1×1×1×1)+(1×1×2×1×1×1×1×1×1)+(1×1×1×2×1×1×1×1×1)+(1×1×1×1×2×1×1×1×1)+(1×1×1×1×1×2×1×1×1)+(1×1×1×1×1×1×2×1×1)+(1×1×1×1×1×1×1×2×1)+(1×1×1×1×1×1×1×1×2) = 2+2+2+2+2+2+2+2+2 = 18
There are 18 ways to fill out the answer sheet so that eight answers are correct and one is incorrect.
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The required proof of parallelogram is given below,
What is parallelogram?
A parallelogram is a straightforward quadrilateral with two sets of parallel sides in Euclidean geometry. The opposing or confronting sides and the opposing angles in a parallelogram are of equal length.
For a parallelogram, opposite sides are always equal and parallel.
So for the given parallelogram, we get AD = BC and AD and BC are parallel.
AD and BC is parallel and DC is common side, therefore,
......(1)
Given
.......(2)
Therefore, from condition (1) and (2), we get
![\angle 1 = \angle 2](https://tex.z-dn.net/?f=%5Cangle%201%20%3D%20%5Cangle%202)
If
then DC bisects the angle
. [Proved]
To learn more about parallelogram from the given link
brainly.com/question/970600
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