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Question 2. let x and y be the two sections. x + y = 30 y = 30 - x -- > 1. A = (x/4)^2 + (y/4)^2 Sub 1. into A. A = (x/4)^2 + ((30-x)/4)^2 Differentiate A. To find the minimum value for X. then sub back into x+y = 30 to find y value. Once found both values. sub into A. to find smallest...

In a train compartment, there are 8 seats, with 4 facing the front and 4 facing backwards. a) if 5 people sit in the compartment, in how many ways can they be arranged? b) if 2 of the people do not like sitting backwards, in how many ways can the 5 people be arranged. c) Find the probability...

Thanks. Helped a lot. Heres another q thats bugging me. In morse code letters are formed by a sequence of dashes and dots. How many different letters can be represented if a max of ten symbols are used? The answer is 2046

In how many ways can a boat crew of 8 women be arranged if 3 women can only row on bow side and 2 others can only row on stroke side. Thanks in advance

Small money question The Ripoff finance company had the following hire purchase agreement with Mr. B. Spender (I sear the names are so retarded) Cash price of yacht $17500 Deposit $450 Trade-in allowance on old yacht $1200 Stamp duty...

thanks got it

(indefinite integral) 5x(x+4)^1/2 dx using the sub. u = x+4 Thanks in advance. :)

Thanks. It helped a lot. Well done.

In the expansion of (ax+b)^6, the coefficient of x^4 is 2160 and the coefficient of x^5 is -576. Find a and b. Thanks guys

hey guys help us out with this question :) find the equation of the curve that is always concave upwards with a stationary point at (-1,-2) and y intercept 3. thanks