Question

Can someone explain to me how it is possible to determine an answer for this question?
http://i.imgur.com/ahpPs.jpg

The waterslide one, I've had a go at it but there simply does not seem to be enough information (equations etc) to get answers. Any ideas?

Answer 1

are you talking about 16?

Answer 2

The one underneath, Analysis Question 1.

Answer 3

use tan theta= h1/ 5

Answer 4

and \[h1= \sqrt {l^2-25}\]

Answer 5

In order to use trig, you need an angle, but there is no angle listed in this question.

Answer 6

coordinate of A is (16,0)

Answer 7

The answer section in the back of the book states it is (15,0)

Answer 8

hmm...wait a sec

Answer 9

how come this cubic equation has got two roots only??

Answer 10

let's say coordinate of A is (x1,0)...your cubic function will be (x-0)(x-8)(x-x1)

Answer 11

but at x=0 value of cubic function is h1

Answer 12

so the function is (x-h1)(x-5)(x-x1)

Answer 13

now i am realising ...this question is really a good one :)

Answer 14

@lgbasallote where are you...come here ..have some fun

Answer 15

someone called?

Answer 16

yea me....check out the question and help to figure this out ...please

Answer 17

sorry. i hate math...i have no idea

Answer 18

well i had been seeing that...you have solved mathematics for most of the time ...but it's fine....if you don't wanna get in to this

Answer 19

i seriously do not have any idea. i'm just a primary school student.

Answer 20

cool...