Shelia is dividing x4 – 4x3 + 4x2 – 6x + 5 by x – 1 using a division table. Quotient Divisor x3 – 3x2 + x – 5 x x4 –3x3 x2 A – 1
1 answer:
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Answer:
Rosa's rate is 6 miles per hour
Step-by-step explanation:
Rosa rides for 3 hours and is 20 miles from her house.
After riding for 5 hours, she is 32 miles away
Let x represents the number of hours
and y represents the number of miles away
(3,20) and (5,32)
rate is the slope
to find rate we find change in miles over change in hours
so Rosa's rate is 6 miles per hour
Answer:
Reason:
A square root represents an exponent of 1/2
So
Raising that to the fourth power gets us this,
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Edit: Here's an alternative route
The first line is possible because raising anything to the 4th power is the same as having 4 copies of it multiplied out (eg: 3^4 = 3*3*3*3 = 81).
Then in the second line, I collected the terms into pairs
By line 3, the square root and squaring exponent cancel each other out. This only works if y is not negative.