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Find the roots for the quadratic equation x^2 +2x-3 = 0

I would show the student two methods of solving this answer.The first method by:Finding two numbers that multiply to make -3 and simultaneously add to make +2.The two num...

AN
Answered by Adibah N. Maths tutor
9332 Views

How is blood glucose regulated?

High blood glucose levels - such as following a large, carbohydrate rich meal. The increase is detected by Beta cells of the pancreas, which relea...

LK
Answered by Lois K. Biology tutor
2375 Views

Why indentation is important in Python and what is the scope of a global variable?

Normally, in every programming language we should normally use indentation in order to have a nice style and a readable code. But Python programs are structured through indentation, so different code bloc...

GP
2317 Views

The ionic product of water, Kw = 2.93 × 10−15 mol dm−6 at 10 °C. Calculate the pH of a 0.0131 mol dm−3 solution of calcium hydroxide at 10 °C Give your answer to two decimal places.

[OH-] = 0.0262 mol dm-3[H+] = (Kw/[OH-]) = 2.93 x 10−15 / 0.0262 (= 1.118 x 10−13) pH = (− log (1.118 x 10−13) = 12.9514 = 12.95 

WB
Answered by William B. Chemistry tutor
5869 Views

What is the Preceding Direct Object rule?

I distinctly remember my A-Level French teacher repeatedly highlighting mistakes such as the one below in my essays:La fille que j'ai vu à côté du restaurant, elle pleurait.In French when ...

CD
Answered by Conor D. French tutor
1842 Views

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