Answer:
Step-by-step explanation:
A = (-123)+77+(-257)+23-43
A = -46+(-257)+23-43
A = -303+23-43
A = -280-43
A = -323
Hope this helps
An exam is made of two papers that score differently.
2 answers:
<h2>Answer:</h2>
Maryam TOTAL percentage score for the exam is:
71%
<h2>Step-by-step explanation:</h2><u>Paper--1</u>
Total marks=120 marks.
The percent score scored by Maryam is: 65%
This means that the score scored by Maryam is: 0.65×120=78
<u>Paper--2</u>
Total marks=80
The percent score scored by Maryam is: 80%
This means that the score scored by Maryam is: 0.80×80=64
Hence, Total marks of both the paper are: 120+80=200 marks
Marks scored by Maryam in both the subjects is: 78+64=142 marks
Hence, Total percentage score for the exam is:
Hence, her total percent score is:
71%
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The line through that point and the origin has a slope of -1. It is perpendicular to the line you want, so the line you want has slope +1. Its equation can be written as
.. y = (x -4) -4
or, in standard form
.. x - y = 8
.. y = (x -4) -4
or, in standard form
.. x - y = 8
Answer:
Step-by-step explanation:
Given
-- total
--- defective
--- selected
Required
The probability of rejecting the batch
This means that at least one of the selected piece is defected.
So, we first calculate the probability that all the selected piece are accepted.
So, we have:
The denominator decreases by 1 because it is a probability without replacement; 180 is subtracted from the numerator to represent the number of non-defective CDs
So, we have:
Using the complement rule, the probability that the batch will be rejected is: