3766
Off Topic / Re: Haven't learned half the stuff on the SAT
« on: April 04, 2017, 05:42:57 PM »First one's trigonometry.no the third one wants you to find the roots of the equation and sum them up, then that will be the answer
Second one wants you to use algebra to move F to a side by itself.
Third one just wants to know what value can replace M and have the thing still be true (meaning equals zero), it's multiple-choice so just try all four choices and see which fits.
i'll give you a hint for #1, just draw a triangle with sides that represent sinx = 4/5
remember that sin x = opposite/hypotenuse and cosx = adjacent/hypotenuse
also if you don't mind me asking, what grade/level are you in? because I don't know when they teach you basic algebra, but the second one is like 7th grade algebra it should be pretty obvious that they just want you to isolate F