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How do I know whether to add or minus in Pythagoras's theorem?

Firstly it has to be a right angled trinagle. Even if it is an irregukar shape, draw a line in to make it a right angled triangle. When you have your right angled triangle remember it is ALWAYS + if it is th...
NM
Answered by Nehemie M. • Maths tutor
42538 Views

What is the difference between pronouns and adjectives?

A pronoun is a word used as a substitute for a noun or a noun-phrase. For example "mon chat" can be replaced by "le mien" (meaning mine). An adjective is a word used to enhance or modify ...
JV
Answered by Julia V. • French tutor
14585 Views

Briefly describe the components of blood and their functions.

55% of blood is made up of plasma. This liquid component holds the other component of blood, cells, in suspension and thus is vitally important to their transport. Plasma is also important in transporting no...
BG
Answered by Benjamin G. • Biology tutor
10808 Views

A pendulum has a frequency of 0.80 Hz, calculate the periodic time of the pendulum.

You need to use the equation that relates frequency and period; period = 1/frequency Then all you need to do is plug in the frequency to get the periodic time: period = 1/0.80 Hz = 1.25 s [NOTE: If you're co...
MV
Answered by Mia V. • Physics tutor
17682 Views

Solve: 3(x - 2) = 21

First you look at BIDMAS, which determines the order in which functions are completed, [Brackets, Indices, Division, Multiplication, Addition, Subtraction], which says we deal with the brackets first, so we ...
MV
Answered by Mia V. • Maths tutor
21608 Views