StuartKess

Factorise 4ysquare +24y+36

14 years ago

Mr smith flight took off at Vancouver at local time 1335. The flight was bounded for Sydney via hongkong. After 16.5h flight, mr smith reached hongkong at 1505 local time on the same day. The plane took off again after 2h 20min. The plane landed in sydney...

14 years ago

What is the smallest positive integer value n, for which 2700n is a multiple of 35?

14 years ago

Given 4w = 5x and 2x = 3G , find the ratio w:x:y

14 years ago

S is directly proportional to M^3. It is given that S=36 for a certain value of M. Find the value of S when this value of M is (a) doubled (b) reduced by 40%

14 years ago

(i) Solve the equation 3y^2-5y-2=0 (ii) hence, solve the equation, 3(1/x-1)^2 -5(1/x-1)-2=0

14 years ago

m is inversely proportional to n^2, where m and n are positive numbers. If m is increased by 1500% , find the percentage change in n. THANKS.

14 years ago

Number of goals : 0, 1,2,3,4,5 Number of matches : 7,x,5,3,1,4 (a) if the mean number is more than 2, find the largest possible value of x. (b) if the median number of goals is 2, find the largest possible value of x

14 years ago

Calcium carbonate is insoluble in water. Name two substances that when mixed in solution, will form a precipitate of calcium carbonate. Explain why is it the two substances that you have chosen. why does magnesium chloride cannot be prepared in the lab by...

14 years ago

Machine A pack = 7200/p boxes of cookies Machine B pack = 7200/p+2.60 boxes of cookies Machine A can pack 1560 more boxes of cookies thanks machine B. Form an equation which reduces to 1560p^2 + 4056p - 18720 = 0 and explain why is this equation is true.

14 years ago

Apples are sold in cartons of 25. David bought home 2 cartons an found 3 rotten apples in the first carton. There were thrice as many rotten apples in the second carton. 1. Find the probability of randomly selecting a good apple from carton 2. 2. If 2 app...

14 years ago

Aqueous potassium sulfate can be prepared by titrating dilute sulfuric acid against aqueous potassium carbonate. What conclusion can e drawn from here? And explain why is it so.

14 years ago

Hi. Is there any ways that I can post the questions up here using pictures? As some of the questions requires diagrams to be solved. Thanks a lot.

14 years ago

Why during melting, particles gain energy and vibrate more, until they are able to overcome the forces that hold them in their fixed position? Why during boiling, particles gain kinetic energy and move quickly until they can completely break the forced ho...

14 years ago

A piece of rope is cut into three pieces in the ratio 2:7:11. If the longest piece is 72cm longer than the shortest piece, find the length of the original rope. Ps: how do I do this type of question? What are the fixed steps?

14 years ago

Banana bought 3 companies for A :$20000000 B : $250000000 G : $350000000 He made a profit of $(9.6x10^6) when he sold the companies. He also made a profit of 25% on A and loss of 10% on B. Find the percentage profit he made on G. How do I do this? What ar...

14 years ago

The braking distance of a car is directly proportional to te square of it's speed. When the speed is p metres per second, the braking distance is 6m. When the speed is increased by 300%, find (a) an expression for speed of the car (b) the braking distance...

14 years ago

1. What does 'the time taken to reach completion decreases if 20cm^3 of hcl containing 4mol/dm^3' means? How to work out to find the concentration? 2(a)What does concentrated hcl means? (b)What does dilute hcl means? Which will react faster or slower / a...

13 years ago

1. When 20cm^3 of a gaseous Allene burns in an excess of oxygen, 60cm^3 of carbon dioxide are formed. Both volumes are measures at r.t.p. What is the formula of alkene? Is it C3H6 or C6H12 and why? 2. A student investigate the reaction of vegetable oil wi...

13 years ago

How do I get 13:36 ?

14 years ago

Oops! Sorry! 3G I mean.. Thanks!

14 years ago

Yes!! Aww thanks!! Sorry for the confusion I've made. Yes it's 3Y

14 years ago

THANKS ! :D

14 years ago

Alright and thanks!

14 years ago

Thanks!!! :) is there any shorter ways? :)))

14 years ago

Why 72 + 2x = 11x ? Would you be able to list some of the common sentences for forming this type of equations? Thanks!! :)))

14 years ago