Mathematics

Math: can anyone help me with this - really difficult(logic type)

http://www.admissionstests.cambridgeasse… the problem with question 23 is: when i read it, try to approach it logically and select the data i need, and apply what i know to what the question wants m

Math: stuck with this question - exam on tuesday!

http://www.admissionstests.cambridgeasse… i can not do question 18 :S please help-By interlacing the H figures you can get 13.-The area of the H without removing the top and bottom is 8 x 8. You can

Math : I have no idea how to approach this question? few can do this

In an experiment, 6 bulbs were planted in a row. 3 produced red flowers, and 3 produce yellow flowers. If the bulbs were planted in random order, if the bulbs were planted in random order what is the

Factoring Math Equations help

7 (x^2 + 2x - 3)someone told me its not fully factored and had to be 7 (x+3) (x-1) but when do i have to do this? everytime? for example 10 (4m^2+3x-1)do i still have to factor that?-Yes you do, you n

Let S be the set of all real numbers between 0 and 1 with the property that their decimal..

decimal expansions only have 6s and 7s. For example, the following numbers are elements of S: .777766776767777776777... and .6666666666666766667777766666667 show that there exists a rational number in

Find the measure of the central angle

Find the measure of the central angle, in radians, given the area of the sector as 22.6 cm2 and a radius equal to 3.7 cm. Round your answer to the nearest tenth.-area of circle = pi R^2= 3.14 (3.7^2)

What does the pun, "Without geometry, life is pointless." mean

Geometry is all about shapes and the shapes are made up of points. Lines have 2, triangles 3, etc.-points, geometry... get it? http://answers.yahoo.com/question/index?… answer?

Help with equations, logs and ln

Given y = 4^(x^2 - 5x) * 6^(x^3 - 4x^2) * 7^(5x+4), ln(y) can be written ln(y) = ln(A)x^3 + ln(B)x^2 + ln(C)x +ln(D). What are the values of A, B, C and D? Ive been trying this one for a while now, a

Mathematical term for numbers or letters

What is the mathematical term for something that is either a number or letter?eg. Natural numbers are positive integersIntegers are whole numbersThanks-It would be called alphanumerical.-Math is stric

Math : I have no idea how to approach this question

http://www.admissionstests.cambridgeasse… question 15 is it trial and error? can anyone explain to me their approach please? thanks-There are 6 squares available squares that dont touch any of the

Have I done this right

http://www.flickr.com/photos/51672712@N0… Okay, after that, can I cancel the sin out and and then put the 2 in front of the integral?-hi, what you should do instead of your last step is: since you kn

How fast is the distance between the ships changing at t = 3pm

Im having a lot of trouble with this question. I cant seem to get any of the below answers. At noon, ship A is a distance d = 130km west of ship B. Ship A is sailing east at a speed of v = 30km/h. Sh

Identify the curve by finding a cartesian equation for the curve

r cos(theta)=1 PLEASE EXPLAIN! thanks!-The conversion from polar coordinates to cartesian coordinates uses the transformation: r = √(x² + y²) Θ = arctan(y/x) cosΘ = x/r = x/√(x²+y²) Making the subs

How do I do this, really stuck

http://www.flickr.com/photos/51672712@N0…-ln(a+b) is not the same as ln(a) + ln(b) y = e^(2x) + 4 e^(2x) = y-4 2x = ln(y-4) x = 0.5ln(y-4) f^(-1)(x) = 0.5ln(x-4)x > 4-ln(a+b) cannot be simplified

Compute f '(a) algebraically for the given value of a.

f(x) = 2x^2 + x;a = 9 thanks, 10pointss!-f(a)=lim {(f(a+h)-f(a))/h}as h tends to 0 f(a)=lim { [2(9+h)^2+9+h-(2*9^2+9)]/h}as h tends to 0 f(9)=lim { [2(81+18h+h^2)+9+h-2*81-9]/h}as h tends to 0 f(9)=l