Answer:
Step-by-step explanation:
The image on the right is not the answer. It is reflected across the y axis. equations and the inverses are reflections of each other across the line y = x. So that lets out the middle one as well which looks to be reflected across y = - x
That only leaves the left image which is the correct answer.
Answer:
Step-by-step explanation:
use the distance formula.
x1=-1
x2=1
y1=4
y2=-2
d=√((x2-x1)^2+(y2-y1)^2)
d=√(30) or 5.4772
use the Pythagoras theorem method
a squared plus b squared equals c square
Let x be the time it takes Elias and Niko to polish the silver working together. If Elias works alone, he could polish all the silver himself in 40 minutes. Then, in 1 minute, he will make 
of the total work. If the same analysis is applied Niko, in 1 minute, will make 
of the total work.
Working together Elias and Niko will need x minutes to make all the work. Then, in 1 minute, they will make 
of the total work. So, the fraction of the total work they make in 1 minute is given by this equation:
The answer is F=40, when a=10.
Divide 28 by 7, so F=4, when A=1. Then multiply 4 by 10 and you get F=40.
