The original fire department is 3 units wide and 4 units long.
The new fire deportment is also 3 units wide, so to be congruent, it needs to be 4 units long.
Point C would be (1,-5)
Point D would be (4,-5)
See attached picture.
The repeating decimal 0.2 is expressed as 2/9.
Answer: 1
Explanation: anything to the power of 0 is 1 so if it is x to the power of 0 it would be 1
By using differential equations' concept, we get that there is no sugar in the beginning.
<h3>What is a differential equation?</h3>
A differential equation is an equation that connects the derivatives of one or more unknown functions.
Given:
Pure water = 2840 litres
sugar = 0.01kg per liter
Rate of sugar entering the tank = 4liter/min
New solution drains out at the rate = 4 litre/min
To find: sugar in the beginning.
Finding:
(a) In the beginning, the tank contains only pure water and no solution of water with sugar.
Hence, the sugar is null for t = 0.
To learn more about differential equations, refer to the link: brainly.com/question/1164377
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