Answer:
answer is
x1= 1/2 + 1/2 * i *sqrt(5)
x2= 1/2 - 1/2 * i *sqrt(5)
Step-by-step explanation:
Please refer to the attached picture for the procedure
Keep in mind, that the first step to use the quadratic formula is to rearrange the terms.
Unscramble each of the clue words.
1 answer:
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Answer:
y - 5
Step-by-step explanation:
Given
Factorise the numerator
y² + 2y - 35 = (y + 7)(y - 5), thus fraction can be expressed as
Cancel the factor (y + 7) on the numerator/ denominator, leaving
y - 5
Answer:
122.5
Step-by-step explanation:
Let the student normal score be 100
In the beginning score increased by 40%
Hence score at the beginning =100+40 = 140%
Now before end score decreased by 25%
Decrease = 25% of 140 = 35
Hence score at the end of month = 140-35 = 105
Average score for the month
= Total of scores of end and beginning month /2
=