Are you sure you wrote that correctly???
(x*3*y)^2 = (3xy)^2 = 9x^2 y^2
If one swims away(I do not know exactly HOW that happens) then there are 9 (5 are dead) ..if the one that 'swims away' cannot leave the tank, then thee are still 10 in the tank (5 are dead)
Substitute for x and z
-6y + y +14y = -54
9y = -54
y = - 6
z=14y = 14(-6) =- 84
x = -6y = -6(-6) = 36
y= = length
x = years 8 inches per year is 8/12 FEET per year
18 = constant (length at birth) in FEET 1.5 feet
y = 8/12 x + 1.5 = 2/3 x + 1.5 (recognize y = mx + b form of a line?)
Messed up on the last calculation....numerator should be 95.994
95.994/148.313 x 860 = 556.63 gm <---------I had the correct answer but did not enter the numbers correctly
When x = 0 y = 6
y=0 x = 6
x =12 y = 6
x=-6 y=12
graph and connect those points....
It will be a ' V' shaped graph
How do you THINK it is SUPPOSED to work??
You have everything you need to plug into the equation and solve for 'r' ..... {nl} 2.28x 10^19 = 6.67 x 10^(-11) x 8.68 x 10^25 x 6.59 x 10^19 / r^2
r^2 = 167.3385 x 10^14
r = 12.93593 x 10^7 m
r = 1.293593 x 10^8 m
r = 1.293593 x 10^5 KILOmeters
The \({x}^{y}\) button is an exponent button
3.276 x 10^5 x 4 x 10^5 x 3.9 x 10^6 = 51.1056 x 10^(5+5+6) = 51.1056 x 10^16 = 5.11056 x 10^17