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What are the solutions of (x^3)+6 = 2(x^2)+5x given x = 3 is a solution?

Firstly we will put this into a form equal to zero, by rearranging to get x 3 -2x 2 -5x+6 = 0. This is because in order to solve a polynomial we first need to set it equal to zero. We now know that the value...
WB
Answered by William B. • Maths tutor
6828 Views

What is the difference between "Futuro Semplice" and "Futuro Anteriore"?

The difference is very simple: Futuro Semplice is used to express actions that have not happened yet and it is formed with the infinitive of the verb plus its ending. Verb "dire", "to say&quot...
LP
Answered by Luca P. • Italian tutor
15072 Views

Why does fetal haemoglobin have a higher affinity for oxygen than an adult haemoglobin?

In order to survive. By the time the blood reaches the placenta there is a lower concentration of oxygen in the blood, the fetal haemoglobin has a higher affinity for oxygen so that the hb can bind to oxygen...
ES
Answered by Eden S. • Biology tutor
47414 Views

Find the root of the complex 3+4i

What we should know is that the root 3+4i is a complex number that looks alot like a+bi. We can say : rt(3+4i) = a+bi (Where we dont know what a & b is..yet) and when we square both sides (rt(3+4i))^2=(a...
AA
3830 Views

When using the trapezium rule to approximate area underneath a curve between 2 limits, what is the effect of increasing the number of strips used?

Ideally to find the exact area under the curve, we would integrate the function and substitute in the bounds given. However, using the trapezium rule gives an approximation whereby using more trapezia increa...
MM
Answered by Manan M. • Maths tutor
10261 Views