Saturday
December 7, 2013

# Posts by Lindsay

Total # Posts: 509

math
What ia A inverse if A = (3 -2) (3 2)

math
Solve the inequality 2x^2<12-5x

math
Solve the equation 3^2x - 12 x 3^x + 27 = 0

math
simplify the following giving your answer with a rational denominator, 2 root3 - root 3/ 2 + root three.

Trigonometry
1. ((cosx)/(1 + sinx))+((1 + sinx)/(cosx)) 2. ((cos(x)cot(x))/(1 - sin(x)))-1

math
solve: n squared + 5n = 84 for n?

physics
to start a nuclear fusion reaction, two hydrogen atoms of charge 1.602x10^-19 and mass 1.67x10^-27kg must be fired at each other. If each particle has an initial velocity of 2.7x10^6m/s when released, what is their minimum seperation?

physics
a square with side length 2.0 cm has a charge of -1.0x10^-6C at every corner. What is the magnitude and direction of the electric force on each charge? What is the force on a fifth charge placed in the centre of this square? Does the sign of the fifth charge affect the magnitu...

physics
a metal ball with a charge of 5.4x10^8 electrons is touched to another metal ball so that all the excess electrons are shared equally. What is the final cahrge on the first ball?

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)

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