5^2 - 6^2
is the difference of 2 squares
and = (5-6)(5+6) = -11
Answer:
Step-by-step explanation:
Activity 3
Q1) consistent, independent
Q2) inconsistent
Q3) consistent, dependent
Q4) consistent, independent
Answer:
She can go 120 km before she runs out of fuel
It will take 2 hours.
Step-by-step explanation:
150 km is the distance
60 km/ h is the speed
The gas tank is 20 liters
We can go 6 km per liter
Fuel costs .60 dollars per liter
We need to determine how far she can go on a tank of gas
20 liters * 6 km / liter = 120 km
She can go 120 km before she runs out of fuel
120 km = 60 km/ h * x hours
Divide each side by 60
120/60 = x
2 hours
Answer:
Is a consistent independent system
Step-by-step explanation:
we know that
If a system has at least one solution, it is said to be consistent .
If a consistent system has exactly one solution, it is independent .
If a consistent system has an infinite number of solutions, it is dependent
If a system not have solution, it is said to be inconsistent
we have
----> equation A
----> equation B
----> equation C
substitute equation A and equation B in equation C
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Solve for z
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The solution is the point (5,6,11)
The system has only one solution
therefore
Is a consistent independent system
The box of 100 would be the better deal, considering buying 2 boxes of 50 would turn out to be $47.00