Ace Truck leases its 10-ft box truck at $30/day and $0.50/mi, whereas Acme Truck leases a similar truck at $25/day and $0.55/mi.
1 answer:
Answer:
Ace Truck
Acme Truck
Step-by-step explanation:
The cost function to lease a box truck from a company has the following format:
In which F is the fixed cost and a is the cost per mile m.
(a) Find the daily cost of leasing from each company as a function of the number of miles driven.
Ace Truck
$30/day and $0.50/mi. This means that . So
Acme Truck
$25/day and $0.55/mi. This means that . So
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You can break the shape up into a rectangle and a right triangle.
Use your trig ratios to find the missing sides.
Add all the sides up and you have your perimeter!
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<em>*notice how one of the 10 is left out because it is inside the shape so we can't use that to find perimeter.</em>
Answer:
Step-by-step explanation:
We know that the standard quadratic equation is ax^2+bx+c=0
Let's compare all the given equation to it and , find discriminant.
1. a=2, b= -7, c=-9
So it has 2 real number solutions.
2. a=1, b=-4, c=4
So it has only 1 real number solution.
3. a=4, b=-3, c=-1
So it has 2 real number solutions.
4. a=1, b=-2, c=-8
So it has 2 real number solutions.
5. a=3, b=5, c=3
Thus it does not has real solutions.