Answer:
None of the above
Step-by-step explanation:
An apropiate verbal expression is: the sum of x and y
Your question asks for an expression, so you would expect an answer in the form of an equation containing variables. This is because you have only 2 independent equations with 3 unknowns. That makes the system unsolvable.
Suppose v₁ is the mountaineer's velocity during the 1,000-foot trail. Then, v₂ is his speed for the 5,000-foot trail. The equation relating these two variables is:
v₂ = 2v₁ - 10 ---> equation 1
Then, you find the equation for the total number of hours he climbed. That would be the distance divided by their respective speed.
t = 1000/v₁ + 5000/v₂ ----> equation 2
Substituting equation 1 to equation 2,
t = 1000/v₁ + 5000/(2v₁ - 10)
t = 1000/v₁ + 5000/2(v₁-5)
t = 1,000/v₁ + 2,500/(v₁-5)
(a) is neither .it has one soultion
(b) is an identity .it had infinite soultions
(c) contradiction .it has no soultions
Answer:
The limit of the function as x approaches -2 is 6.
Step-by-step explanation:
The first step is to graph the function using a graphing utility and later determine the limit from the graph.
The graph of the function is shown in the attachment below.
The limit of the function as x approaches -2 is 6, as indicated on the graph