brkr19

no, I was wondering how to solve each of the three, sorry for the confusing spacing, old laptop has troubles XD.

how would you find

sin^2(x)

because you can't just square the answer, and I forgot the proof

start by distributing the 5

5*1/2x an 5*-3

so that you have

2.5x-15=0

then isolate the variable by moving 15 to the other side

2.5x=15

then divide by 2.5 

x=15/2.5

x=6

it can either be

A=$14\pi$

or A=14*3.1415926 = 43.9822964

0 can go into infinity 0 times, the answer remains 0

for Y=2x 

so as Y increases by a value of 1

x increases by a value of 2.

to find the value of X first simplify the equation,

62+15= 77 therefore

77=x+22

the next step is called isolating the variable, basically we want to see what x is equal to

so we move 22 to the other side through the use of subtraction

    77= x+22

-22        -22

so tha we get

55=x

thus 55 is the value of x

the same as you pass all classes, by paying attention, taking notes, and seeking help if you need it outside of class. :D

both are divisible by

16, 4, 2, 8, 1 

in order to differentiate between them and remeber the difference

mean: the average, this one you can remeber because its mean it makes you do more math

median: median of a road is the middle, so the median is the middle

mode: a mode is a way of something, so if there are way too many of one number, its the mode

range: you can think of it this way, the range of a crocodiles mouth is from the groud to here. or the data ranges from (lets just say)(-12,42)

if you know your value for "Y" then its easy to solve. y is a function of x, meaning that y is the manipulated form of X. (y=2x; if y=12 then to solve for x divide 12 by 2, thus x=6)