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'I don't study biology at a-level so I feel like I can't do it, especially because most of the people in my class do and I can't keep up'

Biopsychology and Neurology are actually a lot easier than they initially sound. I do not think it is necessary to study biology. It might help, but it certainly does not need to hold you back. It's understa...
NP
Answered by Nicole P. • Psychology tutor
2177 Views

Let f(x)=x^x for x>0, then find f'(x) for all x>0.

A common misconception from many students when tackling this problem is that they think the usual 'power rule' works. However, in this case the power is itself a function of x and not just a constant, so thi...
MF
2549 Views

What is the probability that you pick a blue ball from a bag of 3 blue balls, 4 red balls and 2 black balls

total number of balls = 3+4+2=9number of blue balls = 3probability of picking a blue ball = total number of blue balls/total number of ballstherefore = 3/9=1/3
OA
Answered by OLA A. • Maths tutor
5084 Views

Solve the simultaneous equations 5x + 2y = 4 and x - y - 5 =0

First label the equations. 1: 5x + 2y = 4 . 2: x - y - 5 = 0 . Rearrange equation 2 . 2: y = x - 5 Substitute equation 2 into equation 1 . 5x + 2( x - 5 ) = 4 . 7x = 14 . x = 2 . Substitute x = 2 into equati...
CS
Answered by Conor S. • Maths tutor
6114 Views

Integrate the function f(x)=3^x+2 with respect to x

First note that a=e ln(a) and ln(a b )=b ln(a)By substituting a=3 x we get a=3 x =e ln(3^x) =e x ln(3) , and hence f(x)=e x ln(3) +2∫ f(x)dx=∫ e x ln(3) +2 dx . First we can split this into the sum of two in...
CC
Answered by Christian C. • Maths tutor
3504 Views