2x^-2 y^-2 x= 3 and y = –2?
2 answers:
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Answer:
Answer → C) 121°
Step-by-step explanation:
» Let the wanted angle be x
Answer:
The answer is 28
Step-by-step explanation:
Since the total measurements of triangle corners are equal to 180
Then
The percentage, if the new cost was 84% of the original is 40%
Let the cost of the item be x.
When the price increased by y%, the new price is:
When the price decreased by the same percentage (i.e. y%), the new price is:
The cost is said to be 84% of the original price.
So, we have:
Divide both sides by x
Apply the difference of two squares
Subtract 1 from both sides of the equation
Cancel out the common factors
Take the square root of both sides
Multiply both sides by 100
Hence, the percentage is 40%
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