Need help for number 13 and 14. The worksheet given to me is called simplifying rational exponents, my teacher gives us the answ
ers for it (in red) but I have no idea how to get it
1 answer:
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Answer:
Step-by-step explanation:
The slope formula is
Here, is -6,
is 4,
is -5, and
is 4.
So, the slope of the line passing through the points (-6,-5) and (4,4) is .
Answer:
Step-by-step explanation:
So we have the expression:
Recall the order of operations or PEMDAS:
P: Operations within parentheses must be done first. On a side note, do parentheses before brackets.
E: Within the parentheses, if exponents are present, do them before all other operations.
M/D: Multiplication and division next, whichever comes first.
A/S: Addition and subtraction next, whichever comes first.
(Note: This is how the order of operations is traditionally taught and how it was to me. If this is different for you, I do apologize. However, the answer should be the same.)
Thus, we should do the operations inside the parentheses first. Therefore:
The parentheses is:
Square the 6 and the 4:
Do the operations from left to right. 36 divided by 3 is 12. 12 times 4 is 48:
Therefore, the original equation is now:
Multiply with the brackets:
Subtract with the brackets:
Two negatives make a positive. Add:
Therefore: