(-6.8)^2
The product of a squared negative number is ALWAYS positive.
So (-6.8)^2 = 46.24
√(-196) Is impossible.
What's under the radical MUST ALWAYS be positive. The square root of a negative number doesn't exist, so is impossible to calculate.
Hope this Helps! :)
Answer:
I believe they are not.
Step-by-step explanation:
The reason for this is that in the first algebraic expression there are parentheses which means you must do anything inside the parentheses first. On the other hand, the second expression doesn't have parentheses so you'll end up subtracting 3 from x, also not 100% sure!!
They are complimentary angles because they add up to 90 degrees
Answer:
The naswer to your question is: letter c)70
Step-by-step explanation:
Data
2 skeins of yarn cost $7
8 skeins of yarn cost $28
total = 20 skeins
cost = ?
Equation = she need s to buy 2 skeins of 8 a 2 skeins of 2
cost = 2 x $28 + 2 X $7
cost = 56 + 14
cost = $70