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factorise 2x^2 +10x

2x(x+5)
AS
Answered by Ashley S. • Maths tutor
4706 Views

The point D has polar coordinates ( 6, 3π/4). Find the Cartesian coordinates of D.

We know that r= 6 and θ = 3π/4 as it is given in the question. We can then use the identities: x= rcosθ and y= rsinθ to find the x and y coordinates which are the Cartesian coordinates. So, x= rcosθ = 6cos(3...
MB
4265 Views

The sum of the first K natural numbers is 300. Find the value of K.

S= 0.5n(n+1) ( formula for the sum of the first n natural numbers) 0.5K(K+1)= 300 ( sub in K and make the formula equal to the total sum given) 0.5K(K+1)-300= 0 ( take away 300 from both sides) 0.5K 2 + 0.5K...
MB
Answered by Meghan B. • Maths tutor
4805 Views

How do you form the passé composé?

The passé composé is formed by using the present tense form of avoir/être, followed by the past participle of a given verb.Most verbs take the use the verb avoir, however there are several verbs which use êt...
JD
Answered by Joshua D. • French tutor
2460 Views

Find the value of 'a' in the equation: 5a + 12 = 37

First step is to take away 12 from both sides of the equation:5a + 12 = 37 (-12) 5a = 25 Second step is to then divide both sides by 5:5a = 25(÷5) Which gives you the final answer: a = 5
MB
Answered by Meghan B. • Maths tutor
3183 Views