Answer:
Step-by-step explanation:
let their ages be x,y,z and x>y>z
x+y+z=74 ...(1)
x=(y+z)-12
or x-y-z=-12 ...(2)
y=z+5 ...(3)
add (1) and (2)
2x=62
x=62/2=31
from (1)
31+y+z=74
y+z=74-31=43
substitute from (3)
z+5+z=43
2z=43-5=38
z=38/2=19
y=19+5=24
so their ages are 31,24 and 19
I think the slope is UNDEFINED
y²-y¹/x²-x¹
(-5)-(16)/(-12)-(-12)
-21/0
=Undefined
The area of what? if those are the dimensions of a triangle, you would do base times height divided by 2.
B
3/16
12
you have to times 2 x 6 to find your x
I'm not for sure tho but I hope it's right