The discriminant of a quadratic is given as
, so we know that
When using the quadratic formula to calculate values for
, we have to take the root of the discriminant. There is no real answer to the root of a negative number and so the equation has no real roots.
Answer:
Step-by-step explanation:
Givens
Cost = 34498 + 33942x
Cost = 2614090
Solution
34498 + 33942x = 2614090 Subtract 34498 from both sides.
33942x = 2614090 - 34498
33942x = 2579592 Divide by 33942
x = 2579592/33942
x = 76
The number of employees expected to be hired is 76
The first question is the 3rd choice.
The second question is also the 3rd choice.
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These are all possible combinations:
1 , 1 , 13 , 15
1 , 3 , 11 , 15
1 , 3 , 13 , 13
1 , 5 , 9 , 15
1 , 5 , 11 , 13
1 , 7 , 7 , 15
1 , 7 , 9 , 13
1 , 7 , 11 , 11
1 , 9 , 9 , 11
3 , 3 , 9 , 15
3 , 3 , 11 , 13
3 , 5 , 7 , 15
3 , 5 , 9 , 13
3 , 5 , 11 , 11
3 , 7 , 7 , 13
3 , 7 , 9 , 11
3 , 9 , 9 , 9
5 , 5 , 5 , 15
5 , 5 , 7 , 13
5 , 5 , 9 , 11
5 , 7 , 7 , 11
5 , 7 , 9 , 9
7 , 7 , 7 , 9
The percent error of the measurement was approximately 5.4% error
This is because Percent Error= (Vobserved-Vtrue)/Vtrue
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