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What is 800 million in standard form?

Standard form is a way of writing really big numbers in what is often a more compact manner. It also makes a really large number more readable. To put a number in standard form we write it by having a number...
JF
Answered by Joel F. • Maths tutor
51824 Views

Find the derivative y= x^2-6x+20?

The derivative is calculated by multiplying by the degree of the variable then taking taking away 1 from the degree.So to calculate the derivative of x^2 we multiple the variable (which is x) by the degree o...
DD
Answered by David D. • Maths tutor
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How do you solve simultaneous equations?

To solve simultaneous equations you need to cancel out variables like x and y one at a time to solve for the other. In the edexcel GCSE 2017 paper this question came up: solve simultaneously x 2 +y 2 =25 y-3...
LN
Answered by Libby N. • Maths tutor
3462 Views

What term comes next in the sequence: 5, 8, 11, 14

Answer: 17 First must find the nth term = dn + b (difference x term number + the back track)In this instance the difference is 3 and the backtrack, term before the first is 2Therefore the nth term is 3n+2Loo...
OM
Answered by Olivia M. • Maths tutor
8209 Views

What is the difference between the preterite and the imperfect tense in Spanish?

The preterite tense is used to describe one off, completed actions that happened in the past. Some examples are: I WENT to the park (fui al parque), I ate a sandwich (comí un bocadillo). The imperfect tense ...
SW
Answered by Samuel W. • Spanish tutor
2153 Views