Which of the following sets of ordered pairs represents a function? A.
{(9,14), (9,4), (0,0), (11,16)}
B.
{(0,-9), (14,-9), (0,9), (-9,14)}
C.
{(9,-9), (12,-9), (0,-9), (-9,12)}
D.
{(-9,9), (-9,12), (-9,0), (12,-9)}

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.

54/3 is 18 so 18 is your answer