Answer:
Yes,(3,1) is a solution because (3,1) is covered when you shade it in on the graph.
The formula for the speed of the wagon can be found by using Pythagoras theorem, and chain rule of differentiation.

(b) When <em>x </em>= 0.6 and q = 0.5 m/s, the speed of the wagon is approximately <u>0.243 m/s</u>.
Reasons:
(a) The distance from the cart to the pulley, <em>r</em> is given by Pythagoras's
theorem as follows;
r = √((3 - 0.6)² + x²) = √(2.4² + x²)
The speed of the wagon = 
The speed of the rope, q = 
By chain rule, we have;


Therefore;


(b) The speed of the wagon when <em>x</em> = 0.6 if q = 0.5 m/s is given as follows;

The speed of the wagon when <em>x </em>= 0.6 and q = 0.5 m/s,
≈ <u>0.243 m/s</u>
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Answer:the value of x will be -4 and the value of y will be 40
Step-by-step explanation:-7x+12=-3x+8
Answer: There is more than one answer, any of these will do
3, 5, 25
5, 7, 33
7, 9, 41