Final answer:
To find the value of y, one needs to isolate y in the equation and solve for it. This can require algebraic manipulation, including properties of exponents and roots for radical expressions. In physics equations or expressions with additional variables, substitution of known values follows, proceeding with algebra to solve for y.
Step-by-step explanation:
The student's question involves finding the value of y and expressing it in simplest radical form. To solve for y, one must follow algebraic steps to isolate y on one side of the equation. If given expressions include terms like the square root of (√), we can use the property that any variable to the power of 2 is equivalent to its square root (x² = √x). For more complex roots, such as the fourth root, you can either raise the number to the 0.25 power or take the square root twice consecutively.
If the problem involves an equation like y = y0 + vot + 1/2at², this kinematic equation from physics can be used to solve for y. Known values are substituted into the equation, and algebra is applied to solve for the unknown variable y.
Another example from the hints provided would involve expressions like 140 + 0.9(YT) + 400 + 800 + 600 - 0.15Y. In such cases, you might insert a known term for the tax rate T and then perform algebraic operations to solve for the unknown variable y.
The complete question is Find the value of y. Express in simplest radical form is ....../;