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For a graph C with equation y=3/(5-3x)^2, find the the equation of the line normal to the graph at point P, where x=2. Give your answer in the form ax+by+c=0

Find out the value of the y coordinate where x=2y=3/(5-3(2))^2=3Differentiate function in order to find the gradient of the graph at point Py=3/(5-3x)^-2Use chain rule where u=5-3xdu/dx=-3dy/dx=3u^-2Hence...

JI
Answered by Jazib I. Maths tutor
3667 Views

How does a acid buffer work?

For example CH3COOH buffer Buffer is in equilibrium like this - CH3COOH = CH3COO- + H+When a little bit of Acid (H+) is added equilibrium shifts left (as equilibrium shifts in the opposite direction when ...

ER
Answered by Emily R. Chemistry tutor
1398 Views

3 teas and 2 coffees have a total cost of £7.80 5 teas and 4 coffees have a total cost of £14.20 Work out the cost of one tea and the cost of one coffee.

3t + 2c = 7.80 ---> x2 to get 6t + 4c = 15.605t + 4c = 14.20 6t + 4c = 15.60-- 5t + 4c = 14.20= 1t = 1.40If t = 1.40 substitute t in to the equation to get:(3 x 1.40) + 2c = 7.80 ---> 2c = 3.60 --&g...

HK
Answered by Hania K. Maths tutor
2241 Views

How does an increase in concentration affect the rate of reaction

An increase in concentration increases the rate of reaction because there are more particles in the same volume. This m...

HK
Answered by Hania K. Chemistry tutor
1765 Views

How is the blood sugar concentration maintained in the body?

The main organ controlling blood sugar levels is the pancreas. This is both an exocrine and endocrine gland. The endocrine part of the gland is what helps control blood glucose at a healthy level through ...

FR
Answered by Fatima R. Biology tutor
1622 Views

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