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Precalulus-NEED HELP!

PLEASE HELP! Compute the difference quotient: [(f(x)- f(a))/(x-a)].. for f(x)= (-1/x^2)


y^2+4y-x+1=0 what is the vertex of this equation and the axis of symmetry for this parabola?


Kindly help with this question. Thanks. Solve the following equation for x. -2/-3x - 7 - 3/2x - 1 = 3/2


use the intermediate value theorem to show that f(x) has a zero in the given interval. f(x) = -x^5 -2x^4 + 5x^3 + 4; [-0.9, -0.8] Stuck!


Change the exponentional expression to an equivalent expression involving a logarithm. 7^c = 0.026


Ok feeling kinda dumb because this isn't coming out right. I know it's simple. log6 (x -3) + log6(x -6) - log6(x + 1) = 2

math- precalulus

Can someone help me with this prolem please? Use the information given about the angle Ɵ to find the exact value of: sin 2Ɵ. 1) sinƟ= 3/5, 0 < Ɵ < (π/2)


a ship travels 60 miles due east, then adjusts its course northward. after travelling 80 miles in the new direction, the ship is 139 miles from its point of departure. calculate the ship's bearing.

proof by mathematical induction

subject is PreCalulus. 2^(k+3) = and < (k+3)! i know how to do proving using mathematical induction when its just an equal sign, but I don't understand what to do when its an inequality. thank you!!! Here is what I would do Step 1: check if it is true for k=1 that is: let k...


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