Answer:
x=-1
Step-by-step explanation:
plug in -1 to equation
3(-1)-13=-2(9+(-1))
-3-13=-2(-8)
-16=-16
it checks.
Answer:
25 % acid solution = 450ml
45% acid solution = 150ml
Step-by-step explanation:
Let
x = 25 % acid solution
y = 45% acid solution
x + y = 600
.25x + .45y = .30(600)
x + y = 600 (1)
.25x + .45y = 180 (2)
From (1)
x = 600 - y
Substitute x = 600 - y into (2)
.25x + .45y = 180
.25(600 - y) + .45y = 180
150 - .25y + .45y = 180
150 + .20y = 180
.20y = 180 - 150
.20y = 30
Divide both sides by .20
y = 30/0.20
= 150
y = 150ml
Substitute y = 150 into
x + y = 600
x + 150 = 600
x = 600 - 150
= 450
x = 450ml
25 % acid solution = 450ml
45% acid solution = 150ml
There will be a vertical asymptote when the denominator approaches zero. So the vertical asymptote is about the line x=2.
There will be a horizontal asymptote as x approaches ±oo where the y value will approach 4. So the horizontal asymptote is about the line y=4
Answer:
We show 1 to distinguish a vertex, but with laws of supplementary the answer is 2.
Step-by-step explanation:
