pre-calculus
equation for parabola with focus (8,-2) directrix x=4
English
essy in mockingbird how Caitlin over Family struggle abput 700 word see example of different essay
physics
Measuring in foot pounds of toque what pressure can the world’s strongest man exert by pulling on an object?
Chemistry
Calculate the pH at the following points during the titration of 100.0ml of 0.20 M acetic acid (ka for acetic acid=1.8*10^-5) with 0.10 M sodium hydroxide. 1. Before addition of any base 2. after addition of 30.0 mL of base
physics
Your younger brother and you are putting up christmas lights, he broke one of the bulbs causing all of the lights to go out. These lights are wired in what?
physics
A coin rests 15 cm away from the center of a turntable. The turntable starts to rotate at an angular acceleration of .8 rad/s^2 and after 7 seconds it slides off. What is the coefficient of static friction between the coin and the surface? Just give me step by step on how to s...
physics
A certain FM radio station broadcasts jazz music at a frequency of 90.7 MHz. (Radio waves are electromagnetic)? Find the waves period? I got 1.1*10^-8 and it is not right.
Urgent Physics!
A top starting from rest is spun for 3 seconds achieving an angular speed of 20 rad/s. How many radians has it gone through in this time? (a is constant)
business
how may someone assess the effectiveness of spending on advertising... i know it has to do with a quantifiable measurment of some sort. please could somebody help me!?
business
how do you calculate break-even output with; fixed costs = £300,000 Total revenue = £150,000 variable costs = £90,000 output = 2500 units would be a big help if someone could tell me! thank you!
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