Answer:
The answer is x=
, x= 
Step-by-step explanation:
x^2=a
-9x=b
3=c
Plug into formula.
Equation: 
Simplify the equation.
Equation: 
Subtract 81 and 12.
Equation: 
Spit into two equations
Equation 1: 
Equation 2: 
Hope this helps!
9514 1404 393
Answer:
x+y<20andx+5y>40
Step-by-step explanation:
The inequality for the number of coins is ...
x + y < 20
The inequality for the value of the coins is ...
x + 5y > 40
Answer:
9.37
Step-by-step explanation:
Given your description, we can set up the equation as:
sin(42) = x/14
*Multiply both sides by 14*
x = 14 * sin(42) = 9.37
Answer: 
Step-by-step explanation:
Given: Density of tank = 0.4 fish over feet cubed.
We know that, 
Therefore,

Hence, the volume of the tank = 
Y= -9(10)+10
y= -90+10
y=-80
Answer: y= -80