Answer:
No solution
Step-by-step explanation:
Let's solve this equation to see if there are any solutions.
First we need to simplify it;
10 + 6x = 15 + 9x - 3x
Combine like terms:
6x - 9x + 3x = 15 - 10
0x = 5
0 = 5
Zero cannot be equal to 5, so there is no solution
Answer:
-5/3 ft/sec
Step-by-step explanation:
In this question, we are asked to calculate the rate at which the height of the top of a ladder is changing given that the lower end is being dragged at a particular rate.
Please check attachment for complete solution and step by step explanation.
Answer:
The rate of change of height, dy / dt = -1.667 ft/s
Step-by-step explanation:
Solution:-
- The length of the ladder, L = 39 ft
- The foot of the ladder is moved away from wall at a rate, dx/dt = 4ft/s
Find:-
how fast is the height of the top changing (this will be a negative rate) when the lower end is 15 feet from the wall?
Solution:-
- We will first draw a right angle triangle, with vertical height of the ladder to be"y" and distance of the foot of the ladder and the wall to be "x".
- Then express the length "L" in terms of x and y using pythagorean theorem:
L^2 = x^2 + y^2
y^2 = 39^2 - x^2
- Taking height of the ladder as the dependent variable and distance of the foot of the ladder from wall as independent variable.
- Formulate a differential equation from the given expression above in terms of "dy/dt" and "dx/dt". Perform implicit differential of the computed expression "d/dt":
2y*dy/dt = -2x*dx/dt
dy / dt = -(x/y)*dx/dt
- Where, dy / dt : The change in height of the ladder.
- The height of the ladder at x = 15 ft is:
- Then evaluate dy/dt:
dy / dt = -(15/36)*4
dy / dt = -1.667 ft/s
A) 13 x 10⁷
B) 42 x 10⁷
C) 67 x 10³
D) 76 x 10³
Answer:
is between 24 and 25.
Step-by-step explanation:
The perfect squares closest to 600 are 576 and 625. Then is between the square roots of 576 and 625.
Square root of 576 is 24.
Square root of 625 is 25.