Answer: Ang eleksiyon o halalan (election) ay isang pormal na proseso ng pagpapasiya kung saan ang isang populasyon ay pumipili ng mga indibidwal na hahawak ng isang publikong opisina. Ang mga halalan ang karaniwang mekanismo kung saan ang modernong kinatawan ng demokrasya ay isinasagawa simula ika-17 siglo. Ang mga halalan ay maaaring humalal ng sangay na ehekutibo, mga miyembro ng lehislatura, at minsan ay ng hudikatura gayundin ng mga miyembro ng pangrehiyon at lokal na gobyerno.
HOPE THIS HELPS
Explanation:(a) Was this an observational study or an experiment? Explain your reasoning. Experiment, because certain variables were controlled (he sets the screen brightness to low and then starts a movie) to determine if iPhones last longer if the screen brightness is set to low, and it proves the cause and effect relationship.
(b) What is the explanatory variable and the response variable? Response Variable- To determine if iPhones last longer if the screen brightness is set to low Explanatory variable- he sets the screen brightness of 10 of the iPhones to high and starts a movie, then the other 10 to low and starts a movie.
(c) Was a random sample used to collect the data? Yes- “he selects a random sample of 20 brand new iPhones”
B: Press the clutch then take out the gear
The first thing you have to realize is that
tangent is the
slope of a curve on a given point. You can solve for the slope by finding the derivative of the given function. So:

Next use
product rule (I recommend watching videos if you're confused):
![= [sin(x)] + [x*cos(x)]](https://tex.z-dn.net/?f=%3D%20%5Bsin%28x%29%5D%20%2B%20%5Bx%2Acos%28x%29%5D)
Next substitute you x-value (π/2) into your derivative:
![= [sin( \frac{ \pi}{2} )] +[ \frac{\pi}{2}*cos( \frac{\pi}{2})]](https://tex.z-dn.net/?f=%3D%20%5Bsin%28%20%20%5Cfrac%7B%20%5Cpi%7D%7B2%7D%20%29%5D%20%2B%5B%20%5Cfrac%7B%5Cpi%7D%7B2%7D%2Acos%28%20%5Cfrac%7B%5Cpi%7D%7B2%7D%29%5D%20%20)


So our slope at π/2 is 1. Next we use our slope-form and substitute our given value and solve for y-intercept (algebra-stuff)


So we get our equation:

So our answer is E
Feel free to ask any questions.
Hopes this helps!
<span>The first task should be done while securing the vehicle is stopping in a legal, secure, parking space.So that we can avoid conflicts in parking the vehicles.Parking in a legal space will be the extra security for our vehicle.There is no any traffic collisions while taking or parking the car.Then police won't charge any fine for our vehicle if we park in legal space.</span>