Top answers

What are the different types of transport across a membrane?

The different types of transport across a membrane can be divided into two main categories: active and passive transport. Active transport requires metabolic energy in the form of ATP and molecules are moved...
SF
Answered by Steph F. • Biology tutor
14849 Views

How to factorise a quadratic with a coefficient of x^2 greater than one, for example 4x2+4x-15?

Firstly, label each coefficient: coefficient in front of x2 “a”, is equal to 4. “b” is the coefficient in front of x is equal to +4 “c” is equal to -15 The procedure for factorising starts with working out t...
BS
Answered by Bhavin S. • Maths tutor
8924 Views

The circle c has equation x^2 + y^2 = 1. The line l has gradient 3 and intercepts the y axis at the point (0, 1). c and l intersect at two points. Find the co-ordinates of these points.

The first step would be to form an equation for the line l. Using y=mx+c, and the information provided in the question, the equation for line l is y=3x+1. To find the coordinates of where c and l intersect, ...
DP
Answered by Dilan P. • Maths tutor
8609 Views

What is the derivative of y=(e^(2x))(sin(3x))

This question is slightly complex and requires you to use multiple differentiation rules. Since we are differentiating a product of two functions, the first rule that we have to use is the product rule: mult...
SH
Answered by Sajidah H. • Maths tutor
13084 Views

What is the best way to accurately translate during an exam?

One of the hardest things to achieve during an exam is when you get to the translation paper., there is no doubt about that. The best way to approach it really does come down to a matter of personal preferen...
RC
Answered by Rhys C. • Spanish tutor
3593 Views