Answer:
If you wanted it to be converted to ft, then her height would be: 4 ft , 5 inches
~hope this has helped you out, have a gr8 day!~
Step-by-step explanation:
Answer:
I dunno
Step-by-step explanation:
-2/3 is the slope because the equation is y=mx+b where m is the slope. not x. SO it is -2/3
Answer:
8√2
Step-by-step explanation:
Simplify √18 which is 3√2
5√2+3√2=8√2
Answer:
v(b) = 4,5 mil/h speed of the barge in still water
Step-by-step explanation:
d = v*t barge going upstream 12 miles and 4 hours trip
barge returning back 12 miles and 2 hours trip
let call v(b) barge velocity and
v(w) water velocity
d = 12 (Mil) = 4 (h)* [(v(b) - v(w)]
3 = v(b) - v(w) (1)
d = 12 (mil) = 2 (h) * [ (v(b) + v(w)]
6 = v(b) + v(w) (2)
Equations (1) and (2) is a two system equation. Solving
from equation (1) v(w) = v(b) - 3
By subtitution in equation (2)
6 = v(b) + v(b) - 3
9 = 2v(b)
v(b) = 9/2 ⇒ v(b) = 4,5 mil/h