$339.94 you're just adding everything together by the seems of it lol.
First you have to know what the opposite of 5x (your slope) is. That would be -1/5x. so your new y= is y=-1/5x-3. All you need to do is plug in the (3,-3) into y-y1=m(x-x1) which would end up looking like... y+3=-1/5(x-3). Then to get rid of the fraction you would multiply that whole thing by -5. you'll then get -5y-15=1(x-3) once you distribute that 1 you'll have -5y-15=1x-3... once you solve that your final answer will be..... The perpendicular line that passes through point (3,-3) is y=2/5x-3. Good luck! :)
Answer:
I assume AD means AB? Well in that case then since AB = 9, then we know one side is 9. if BC is 12, then we know that ABC has a hypotenus of 13 less AC is not the longest side, of which then then missing side length is √63. If AC is the hypotenus, then the triangle has an area of 54. if the hypotenus is 12, then the area is going to be 4.5√63
Step-by-step explanation: