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may I ask how u did so well in 3u/4u bro

school rank is 30-40 subjects are: 3u math 4u math eng adv phys bio chem my current ranks estimate 3u and 4u - 70/160 eng- 30/130 phys- 25/80 chem- 30/90 bio- 15/90

Omg thank youu!! :)

y=(x^4-2)/x^2-1 could someone pls tell me how I can find the shape. All I know is the intercepts so I do I know the shape? thank you so much!!!

dunno how to do iii) the answer is 11/36 somehow :/ Bob tosses two dice with faces numbered 1 to 6. He records the maximum of the two uppermost faces as a score. i. Find the probability that he records the score 1 in a single throw of the two dice. ii. Find the probability that he...

ohhh thank you guys :D

heey wondering what values I should use for T_0 and T_v to get the answer? how do I do this? A space ship travelling at 0.75c sends a microwave message to earth. Calculate the speed of the transmission relative to earth if the spaceship was travelling (a) away from earth (b) calculate its...

can you please help with one last one A piece of wire 20cm in length is bent to form a rectangle. Find the dimensions of the rectangle so as to enclose maximum area

thank you!!

heey guys how would I do these 1. The revenue from a company's product is given by R=180m+42m^2-m^3 where m is the output (per unit of time). Determine the output that will give maximum revenue. 2. An objet is projected into the air. The height of the object after t seconds is given by...

ohh!! lol thank YOU SO MUCH FOR THE WORKING OUT!!! :D MUCH LUb

wait how is the y coordinate of R (the first line of working) a(p^2+q^2+pq+2) like where is the 2 from I thought its not there.. ?

y=x^2 +3 for q3 oops :( wait can u post ur working out please?

pls help :( 2. The tangent at a point P(2ap,ap^2) on the parabola x^2=4ay meets the x-axis at A and the y-axis at B. Find and describe the locus of the midpoint M of AB. 3. Consider the parabola x^2=4ay. If the normal at P(2p,p^2) and Q(2q,q^2) intersect at right angles at R, show that the...

hey guys, wondering how we find the greatest term and greatest coefficient in binomial expansion, using the general term and what is the general term in terms of n and k? for term independent of x, do we sub in 0 for x? thank you!!!!!! :)

ohh thank youuuu pikachu

pls help rip P(2at,at^2) is a point on the parabola x^2=4ay. S is the focus, T is the foot of the perpendicular frpm P to the directrix, and A is the point where the tangent at P meets the y aixs. (i) write down the coordinates of T (ii) show that A is the point (0, -at^2) (iii) what is point S

thank you man!

hey, confused about how we look at the half equations when there are two DIFFERENT solutions in the whole cell setup anyways this q draw a diagram of a electrochemical cell represented by mg|mg2+||hg2+|hg, pt what does this mean? also how do we know what the half reactions are? thank you :)

oh my god thank you