Answer:
The indifference point is 2.1 hours.
Step-by-step explanation:
<u>First, we need to calculate the total cost for each option:</u>
<u />
Dealership:
Total cost= 24 + 99x
Local mechanic:
Total cost= 45 + 89x
x= number of hours
<u>Now, we need to equal both formulas and isolate x:</u>
24 + 99x = 45 + 89x
10x = 21
x= 2.1
The indifference point is 2.1 hours.
<u>Prove:</u>
Total cost= 24 + 99*2.1= $231.9
Total cost= 45 + 89*2.1= $231.9
Notice that
so that for each power of 2, there is a pattern of period 4. This means that for integers
, each of
,
,
, and
have the same units digit.
We can write
, and since
, it follows that
and
share the same units digits. So the units digit of
is 8.
Answer:
6. 3x^3-7x^2+4x-1
7. -6x^4-2x^2+6x+10
8. 42x^4
Step-by-step explanation:
Answer:
x=-2.5,9
Step-by-step explanation:
Set them equal to each other to say 2x^2-9x=4x+45. Get them all on one side to get 2x^2-13x-45. Factor that out to get (x+2.5)(x-9). Set that equal to 0 to get x=-2.5,9
Hereeeeeeeeeeeeeeeeeeeeeeee
