20y2 - 11yz - 3z2 = 20y2 + 4yz - 15yz - 3z2 = 4y(5y + z) - 3z(5y + z) = (4y - 3z)(5y + z)
27y3 + 125z3 = (3y + 5z)*(9y2 - 15yz + 25z2).
What are we solving here for, Z, X, or Y?If solve for Z then the answer would be z = x + yIf solve for X then the answer would be z = z - yIf solve for Y than the answer would y = z - xHope this help.
Set up the equation and solve for z: 28 + z = 56 (next, subtract 28 from each side of the equaition to solve) z = 28
6+z = 3 z = 3-6 z = -3
The expression has no solution but it can be simplified to: z+6
z-3.6=46.8 add 3.6 to both sides z=50.4
You should write the question out as z= (y/x). To solve this, you would multiple x to the other side to get y alone. Then you would multiply z to the other side. z= (y/x) Given xz= y x= y/z
Z tranform can be used to solve the differential equations occurring in electrical problems.
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
In simple cases such as these, you can solve inequalities just like an equation. In this case, you add 3 to both sides.
z + 8 - 2 is an expression, not an equation. An expression cannot be solved. At best, you can simplify it to z + 6.
(1/x) - (1/y) = (1/z) Get the left-hand side over a common denominator:- (y-x)/xy = 1/z Take the reciprocal of both sides:- z = xy / (y-x)
You need to clarify what you want to solve for. If you're solving for z, then we can say: dz/dt + 4et + z = 0 ∴ dz/dt = -4et - z ∴ ∫(dz/dt) dt = -2et2 - zt + C ∴ z = -2et2 - zt + C ∴ z + zt = -2et2 + C ∴ z(1 + t) = -2et2 + C ∴ z = (-2et2 + C) / (1 + t)
You cannot solve one equation in three unknowns. You need three independent equations.
you can not solve this equation
If: 3z = 0.45 Then: z = 0.15 by dividing both sides by 3
When you add the two exponents together and get the reaction of the first two denominators
z2 - 12 + 36 is the same as z2 + 24. That's a simplification, but not a solution. There's nothing to solve, because the question doesn't give an equation. If z2+24 were equal to something, then we'd have an equation, and we would be thrilled to solve it for the value of 'z'.
You do not have enough information to solve this problem. More accurately, you do not have enough information to assign a numeric value to z. However, abstractly, you could say that z=27-3x-4y.
To find what z-score represents the 80th percentile, simply solve for 0.8 = F(z), where F(x) is the standard normal cumulative distribution function. Solving gives us: z = 0.842