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The function f has a local extreme at point (1,4). If f''(x)=3x^2+2x, then find f(0)?

A local extreme point would mean that f'(1)=0. Since integration is the inverse application of derivation, to obtain f'(x) function we integrate the f''(x) function. Bearing in mind the integration rule of i...
MT
Answered by Moris T. • Maths tutor
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How to distinguish between voluntary and involuntary manslaughter

In both cases a death has occurred. We all know that for someone to be guilty of murder they must have satisfied the actus reus and the mens rea, they must have unlawfully caused the death and they must have...
LO
Answered by Lisa-Marie O. • Law tutor
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Different enzymes catalyse specific reactions. Explain why enzymes can only catalyse specific reactions.

A simple way of thinking about why enzymes catalyse only specific reactions is to think of the enzyme and the substrate (the compound the enzyme is acting upon) as a lock and key system. Enzymes have a parti...
OD
Answered by Oliver D. • Biology tutor
9703 Views

Solve the simultaneous equation: 2x + y = 18, x - y = 6

First, we simply label the two equations as 'Equation 1' and 'Equation 2' respectively. So we have: Equation 1: 2x + y = 18and Equation 2: x - y = 6. In simultaneous equations, there are two variables: x and...
HM
Answered by Harry M. • Maths tutor
4721 Views

25 cm3 of NaOH was titrated with 0.050 mol dm-3 HCl. NaOH + HCl --> NaCl + H2O. 21.5 cm3 HCl neutralised 25 cm3 NaOH. Concentration of NaOH in mol dm-3?

21.5 cm 3 / 1000 = 0.0215 dm 3 of HCl. n = cv so (0.050) x (0.0215) = 0.001075 mols of HCl. NaOH + HCl --> NaCl + H 2 O so there is a 1:1 ratio of reactants to products. Therefore there are 0.001075 mols ...
AS
Answered by Arran S. • Chemistry tutor
3491 Views