Data la parabola di equazione y=1/4x^2, considera un punto Q della direttrice. 1. Verifica che le due tangenti alla parabola condotte da Q sono perpendicolari. 2. Determina la tangente t alla parabola nel suo punto P di a scissa 3. Trova poi la tangente alla parabola perpendicolare a t. verifica che le due tangenti si intersecano in un punto della direttrice​

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.

One astronomical unit (1 au) is about 1.496 alt tag missing. kilometers. if you wrote this number of kilometers in regular decimal notation (for example, 528 and 3,459 are written in regular decimal notation), how many zeros would your number have?