Wednesday
May 22, 2013

# Posts by lindsay

Total # Posts: 492

Math
g(x)= -3x^2 g(f(x))= -3(x^2-4)^2 -6(x^2-4)(2x) -6x^2-24 (2x) -12x^3-48x -12x(x^2+4) f(g(x))= (-3x^2)^2-4 2(-3x^2)(-6x)-4 -6x^2(-6x)-4 36x^3-4 4(9x^3-1)

geometry
Given that P=(2,10) (5,-3) a. Evaluate the inverse P^-1, of P b. use a matrix method to solve x(2,5)+ y(1,-3) =(7,1)

geometry
The towns A and B are on the circle of latitude 24 degrees N.The longitude of A is 108degrees E and longitude B is 75 degrees E. a. Calculate the radius of the circle of latitude 24 degrees N. b.The shortest distance between A and B measured along the circle of latitude 24 deg...

geometry
The points A=(1,1) B=(3,4) connects to point C (3,1). a. Find the length of AB b. The gradient and equation of line AB

geometry
R =(cos0 -sin0) (sin0 -cos0) State the matrix R for 0=120 degrees NB 0 represents theta

measurement
Find thde total surface area of the net of a square pyramid given that the base is 3cm by 3cm and each slant edge is 5cm. Include the flaps.

measurement
A cylindrical container has an interior diameter of 21 cm. It can hold 6.93 liters of liquid. Find its height take Pi=22/7

measurement
A trailer driver left Miami at 15:45 and arrived at his destination 637.5 km away at 02:15 the next day a. How long did the journey take? b. What was his average speed in km/h c. What was his speed in ms^-1?

trigonometry
I need help in understanding how to identify which identity to use. using this question as an example. Show that tan theta (sin theta+cot theta cos theata)all over cos theta = sec^2 theta. Please explain.

trigonometry
In the triangle ABC, the sides AB and BC have lengths 7cm and 8cm respectively, and angle B is obtuse. the area of the triangle is 14 root 3 cm^2. Find a.The size of angle B b. The length of AC

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