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Write x^2 + 3x + 1 in the form of (x+b)^2 + c

This question is asking for a complete the square method. This is where you take the coefficient of x (the number before x, so 3 here) and divide it by two, this gives you b in the new form. However, upon sq...
EW
Answered by Emily W. • Maths tutor
8059 Views

Why is the left side of the heart more prominent than the right side?

There are two sides of the heart and each side (left and right) has two chambers each. The two chambers: atria (top) and a ventricle (bottom). Even though the two sides of the heart have two chambers each, t...
TS
Answered by Timi S. • Biology tutor
21000 Views

How do you calculate a number to the power of a fraction? (8^2/3)

When a number is raised to the power of a fraction, it is the same as rooting that number to the denominator (the number on the bottom). So if the number is raised to ½ it is the same as √ and if it is raise...
KS
Answered by Katie S. • Maths tutor
62147 Views

How to remember the difference between economic and physical water scarcity?

Water scarcity is a phenomenon when the demand for water is greater than the available resource. Water scarcity = problem. It is important to notice the word "demand" as water scarcity does not occ...
SJ
Answered by Sara J. • Geography tutor
25731 Views

How to write a good essay?

IB geography essays can be a bit tricky at first. The most important factor is to know what is expected from you and that's why it is crucial to read the official Geography guide. So, how to write a good ess...
SJ
Answered by Sara J. • Geography tutor
3306 Views