10. Give a brief biography of Heron of Alexandria stating where he lived, when he lived, what he did to earn the name attached to this formula and what an Aeolipile (or Hero's Engine) is. 11. State 3 real-life situations it would be useful to use Heron's Formula instead of the A = bh/2 area formula?​

add 8+12 to get a simplified answer of 12r-20

-3.5 is the distance.

i've had this question so choose the one in the absolute value sign.

the answer to your question is minor arc.

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)