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Make n the subject of the formula: m = 5n - 21

The answer is: n = (m + 21)/5 How did we get this? Right now, the equation is written in the form where m is the subject. We want to rearrange this so that n is the subject of the formula. The formula should...
JC
Answered by Jabin C. • Maths tutor
20894 Views

How do I know when to use 'ser' and when to use 'estar' if they both mean 'to be' in English?

This is a really common struggle for people learning and studying Spanish, even at university level. It's understandable because when we want to translate 'to be', for example; I am Naomi, I am friendly, I a...
ND
Answered by Naomi D. • Spanish tutor
3580 Views

What does this hiragana word mean たべもの

The answer is 'food'. The word is consituted of '食べ' the verb stem of 食べる, to eat, and もの which describes a thing or a physical object as part of this word. Together it literally translates as 'eat' 'thing',...
AM
Answered by Amelia M. • Japanese tutor
3028 Views

How does the wave of conduction pass through the heart?

Firstly, the 'wave of excitation' is produced by the sinoatrial node (SAN) in the top of the right atrium - this is also known as the pacemaker, as this is what controls the rate of contractions. This wave p...
EB
Answered by Elisabeth B. • Biology tutor
10670 Views

What is the turning point on the curve f(x) = 2x^2 - 2x + 4

df/dx = 4x - 2 turning point when differential = 0 ==> 4x = 2 hence; x = 0.5 When x = 0.5 f(x) is equal to (substitute) 3.5 hence the turning point is at (0.5,3.5)
DT
Answered by David T. • Maths tutor
6266 Views