maths

=1/2xbasexheight cannot work it out??? tried so many time

for question d and e? The mean difference between the two groups (fertilizer and control) is the -0.965. so thus we can consider 2 explanations for the -0.965 difference The fertilizer has no effect on the height of popular trees and diff. of -0.965 was due to chance. The diff. of...

A randomised response technique was used to investigate rates of illegal fishing of red abalone in Northern California. The study involved interviews with people at various sites. Once verbal consent to participant was obtained, each respondent was given a coin and an envelope containing two...

I am stuck on how I got 2? Can someone help me I remember doing it but I have totally forgotten.

Hi could I get Help with this question really struggling I need to use angle formula to show cos^2x=1/2 (cos2x-1).

An ellipse watermelon has a major axis 28cm and minor axis 25cm. The equation of the ellipse is y = 12.5 - 12.5x/145 Find the volume using calculusJust wondering if anyone can help me out on this question! I'm not quite sure how to answer it as I keep getting an abnormally large number.Thanks!

(a) Find the first 4 terms, in ascending powers of x, of the binomial expansion of (1 – 2x)^5.Give each term in its simplest form. (b) If x is small, so that x^2 and higher powers can be ignored, show that(1 + x)(1 – 2x)^5 ≈ 1 – 9x.

PLEASE CLICK ON THIS LINK TO VIEW THE QUESTIONS Home 1. calculate the area of the triangular fields, and the length of perimeter fencing required to secure the site. AB= 20m, Angle ABC= 60 degrees, Angle ACB= 20 degrees and angle BCD= 60 degrees. 2. The width of a river at a certain...

Find two different pairs of integers (r,s) such that 27r + 19s =1. In the first case r should be positive; in the second case s should be positive. Can anyone help? Thanks

Show that if an event occurs with probability 1 then it is independent of all other events. I understand that if independent P(A) X P(B) = P(AnB) But proving this doesnt prove that it is independent of all events. Can anyone help? Thanks

Let a0, a1, a2, . . . be the sequence defined recursively asa0 = 1, a1 = 2, ak = ak−1 + ak−2 for each integer k ≥ 2. Use strong mathematical induction to prove that an ≤ 2nfor each integer n ≥ 0. This is what i have so far with my working.Let P(n) be the statement that an≤2n Basic step: Prove...

Let b0, b1, b2, . . . be the sequence defined recursively as b0 = 0, bk = k − bk−1 for each integer k ≥ 1. (a) Write out the first 8 terms of this sequence, and use that information to guess an explicitformula for this sequence. (b) Prove that your guess of an explicit formula is correct. I...

In the above question how do you get the target value! I have completely forgotten how to do this type of question!

Hello, im struggling with setting up the likelihood function from the probability function given. I just do not understand the rules governing how things are mulitplied etc. for example

Hi, I just finished my first University year (mathematics), and I am writing this since my main interests on mathematics are metamathematics , the philosophy of mathematics and its foundations. I think that to study and analyze maths from this perspective I have to know how to work in certain...

hi i cant solve this Assume the duration of human pregnancies can be described by a normal model with a mean 270 days and a standard deviation of 15 days (i) using the empirical rule write down the 95% confidence interval for the mean pregnancy duration (ii)At least how many days should the...

hi i cant work this out Its is estimated that 0.3% of a large population have a particular disease. a test developed to detected the disease gives a false positive in 4% of tests and a false negative in 1% of tests. a person is tested positive for the disease. what is the probability that the...

hi i cant solve this A game of chance can be played at a charity fundraiser. in the game a player spins an arrow on a wheel and wins the amount shown on the sector the arrow stops on. the game has 5 sectors $0,$0,$3,$5,$6 and each arrow is just as likely to stop in one sector as in any other...

hi i cant solve this a stone is projected vertically upwards with an initial speed of u m/s and rises 70m in the first t seconds and another 50m in the next t seconds. find the value of u and t i think the question can be solved using UVAST equations

Mr Greengold had received a consignment of gold in the form of one-centimetre cubes. To conceal them, he ordered that the cubes be glued together to form a solid cuboid and had all the outside faces of this cuboid painted camouflage green. Jimmy Bold carefully spied on these proceedings and...