A is the answer because it doesn’t have a repeating x value
Answer:
Graph C represents a decreasing function.
Step-by-step explanation:
Graph A: Since y does not change when x increases from 0 to 6, this graph (a horizontal line) represents a constant function. REJECT this choice.
Graph B: The line connecting (0, 0) to (6, 6) is a straight line with slope +1; it's an increasing function. REJECT this choice.
Graph C: As we go from (0, 5) to (6, 0), y decreases by 5. Thus, this is the correct answer choice.
Graph D is a vertical straight line; its slope is undefined. REJECT this choice.
The rate at which the distance between the top of the ladder and the ground at that instant is decreasing at 42 meters per minute.
Given length of ladder 39 m and the rate at which the wall is increasing is 101, the bottom of the ladder is 36 m from the wall.
Let bottom is x and the length of wall be y.
We have to find the rate at which the distance between the top of the ladder and the ground at that instant.
we have to find dy/dt.
We have to apply pythagoras theorem first.
---------------1
![x^{2} +y^{2} =1521](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2By%5E%7B2%7D%20%3D1521)
put the value of x=36 in the above equation
![36^{2} +y^{2} =1521](https://tex.z-dn.net/?f=36%5E%7B2%7D%20%2By%5E%7B2%7D%20%3D1521)
![y^{2} =225](https://tex.z-dn.net/?f=y%5E%7B2%7D%20%3D225)
y=15 m
We have to find the derivative of equation 1 with respect to t.
2x*dx/dt+2y*dy/dt=0
Because it is given that bottom is increasing at 101 meters per minute so dx/dt=101
2x*101+2y*dy/dt=0
put the value of y=15
2x*101+2*15*dy/dt=0
2x*101+2*15*dy/dt=0
dy/dt=-3030/2*36
dy/dt=-42.08
Hence the rate at which the rate at which the top of the ladder and the ground at that instant is decreasing at 42 meters per minute.
Learn more about pythagoras theorem at brainly.com/question/343682
#SPJ4
Question is wrong so it includes ladder length be 39 meters and the rate of increasing of bottom of ladder from bottom of wall is 101 meters per minute and the bottomis 36 m from the wall.
Answer:
Step-by-step explanation:
-5y +15 = 3x
divide both sides by 3 to find x
-5y/3 + 5 = x
to find Y you have to isolate it so you add 5y to both sides and subtract 3x from both sides to get
-3x + 15 = 5y
then to find y divide both sides by 5
-3x/5 + 5 = y
The ones in bold are your answers and they are in their simplest form.
Answer:
false
Step-by-step explanation: the diameter has to be double the amount of the radius