Pkay so here is YOUR ansew=wer uyour welcoeme i am ammath lover it is cofrrect W=(2LH/2L+2H)A
Answer:
1. x=3,y=2
2.x=0,y=4
3.x=-3,y=6
4.x=6,y=0
Step-by-step explanation:
x=3, y=2
2(3)+3(2)=6+6=12
x=0, y=4
2(0)+3(4)=0+12=12
x=-3, y=6
2(-3)+3(6)=-6+18=12
x=6,y=0
2(6)+3(0)=12+0=12. Hope this helps!
Answer:
180 degree angles.
Step-by-step explanation:
180 degree angles are straight lines.
Let a, b, and c be the times each pump will fill the tank when working alone.
Therefore, in 1 hour;
1/a +1/b = 1/(6/5) = 5/6 ---- (1)
1/a+1/c = 1/(3/2) = 2/3 ---- (2)
1/b+1/c = 1/(2) = 1/2 ---- (3)
From equation (1)
1/a = 5/6-1/b
Substituting for 1/a in eqn (2)
5/6-1/b+1/c = 2/3
-1/b +1/c = -1/6 => 1/c = 1/b - 1/6 --- (4)
Using eqn (4) in eqn (3)
1/b+1/b-1/6 = 1/2
2/b-1/6 = 1/2
2/b =1/2+1/6 = 2/3
1/b = 1/3
Then,
1/c = 1/3 - 1/6 = 1/6
1/a = 5/6 - 1/3 = 1/2
This means, in 1 hour and with all the pumps working together, the tank will be filled to;
1/a+1/b+1/c = 1/2+1/3+1/6 = 1 (filled fully).
Therefore, it will take 1 hour to fill the tank when all pumps are working together.
Answer:
Step-by-step explanation:
(-3.1 - 4.92)/2 = -8.02/2 = -4.01
(-2.8 - 3.3)/2 = -6.1/2= -3.05
(-4.01. -3.05) the midpoint