Answer:
Rolf prepares four solutions using different solutes as shown in the table be❤️low.
Which solution is unsaturated?
Solution A
Solution B
Solution C
Solution D
Step-by-step explanation:
Answer:
The real solution is 
.
Step-by-step explanation:
while 
So the equation becomes:
We know that 
. So let's see what gives us:
.
is the result we wanted.
is therefore a solution.
Answer:
(-4,-2)
x=-4
y=-2
Step-by-step explanation:
-3x-4y=20
3(x-10y=16)=3x-30y=48
The reason I multiplied 3 to the second equation is for when we add the equations together the x will cancel out.
-3x-4y=20
+ <u>3x-30y=48</u>
-34y=68
Divide -34 from both sides.
y=-2
To find x you need to plug in -2 for y into one of the equations.
x-10y=16
x-10(-2)=16
Remember a negative times a negative equals a positive.
x+20=16
Subtract 20 from both sides.
x=-4
Hope this helps!
If not, I am sorry.
A_n= a₁ rⁿ⁻¹
a₁ is the first term
r= common ratio
a_n=2(2)²⁰⁻¹= 1048576
