Answer:
5.54 miles
Step-by-step explanation:
1. Assume she runs up to a point that is x miles to the east of the coral reef:
distance running =
distance swimming =
2. Times:
time= distance / speed
time running =
time swimming =
3. Total time
time running + time swimming:
4. Minimize time
The minimum time is when the derivative of the function of time is zero.
Find the derivative of T(x), using rule of the sum, the derivative of the sum is the sum of the derivatives, and the chain rule:
Solve for x:
5. Distance the visitor should run to minimize the time
Hence, the visitor should run 5.54 miles.
please mark me brainliest!
Idk but haha hello why not but why
Answer:
d < -5
Step-by-step explanation:
Okay, so the equation is -5(d-2)>35
First we have to use distributive property to get rid of the parenthesis.
we do -5(d) --> -5d
then, -5(-2) --> 10
So now we just redo the equation---
-5d + 10 > 35
now you have to isolate d, the variable
First, to isolate you have to get rid of 10. Subtract 10 on both sides.
-5d + 10 > 35
- 10 -10
----------------------
-5d > 25
Then you have -5d > 25. You have to do the opposite operation again to make the d by itself, so you divide -5 on each side.
-5d > 25
----- -----
-5 -5
-5d/-5 is d because the -5's cancel out. 25/-5 is -5. Now, you have to flip the equation because when working with inequalities, you have to flip the symbol.
SO,,, the answer is
d < -5
Hope this helps!!
-Ketifa
Answer:
Domain is: (
−
∞
,
∞
) , {
x
|
x
∈
R
}
range is: (
−
∞
,
−
3
] , {
y
|
y
≤
−
3
}
Graph the parabola using the direction, vertex, focus, and axis of symmetry.
Step-by-step explanation:
I need help on this too!!!
