Homework Statement
A woman lives on an island 2km from the mainland. Her fitness club is 4km along the shore from the point closest to the island. To get to the fitness club, she paddles her kayak at 2km/h. Once she reaches the shore she jogs at 4km/h. Determine where she should land to reach...
Homework Statement
Mike, who i standing on the deck of a yacth that is travelling due west at 6km/h, sees a sailboat sailing southwestat 4km/h, 3km northwest of the yacht. How close to each other do these boats get?
Homework Equations
The Attempt at a Solution
My drawing is:
|...
OMG YOU ARE CORRECT!
Thanks man. I'm slow. What's your paypal how much do I owe you.
:tongue2:
And now I have another similar one i'm struggling with it :S
D^2=(-3.53+6t-0)^2+(3.53-8t)^2
I did derivative. Set it to 0. Got 0.7
Thats not the answer
I'm suppost to plug time into the D^2 and get the distance correct?
yes I have a drawing. I used the sin law to find the distance of the 2 sides.
Coordinates (3.53,0) and (3.53,-3.53)
By the way how do you put spaces in latex coding I tried \\ it didnt work
Homework Statement
A trough has an isosceles trapezoidal cross section as shown in the diagram. Water is draining from the trough at 0.2m^3/s
At what rate is the surface rea of the water decreasing?
Dimensions are: base width=0.4m,
top width= 0.8m...
Homework Statement
Ship A, sailing due east at 8 km/h, sights ship B 5km to the southeast when ship B is sailing due north at 6km/h. How close to each other will the two ships get?
Homework Equations
The Attempt at a Solution
I drew the picture. Ship a distance is 8t and B is 6t...
Homework Statement
A Real estate office manages 50 apartments in a downtown building. When the rent is $900 per month, all the units are occupied. For every $25 increase in rent, one unit becomes vacant. On average, each unit requires $75 in maintenance and repairs each month. How much rent...
Homework Statement
Determine the limit:
lim as x->-2 [1/(1+x)+1]/[2x+x^2]
Homework Equations
The Attempt at a Solution
I can't seem to work around it, I keep getting an indeterminate answer.
Homework Statement
The question is: How would you explain the chain rule to a classmate?
My teacher wants: 1.a graph, 2. in words, 3. using math
Homework Equations
The Attempt at a Solution
I said: for the function y=f[g(x)], the chain rule is d/dx[g(x)].
Whats the graph like?