The square root sign is called a radical
That will depend on the value of the unknown variable
It could be called a kite, a rhombus or a square. This depends on the perspective, length and angles of the diamond.
In a linear relationship such as represented in the equation x= b+ay. The relationship between the x and y is a direct variation. This basically means that in the above equation/situation the value of the y variable is proportional to the value of the x variable. In other words the x and y increase or decrease proportionately. If the x value decreases the y value decreases. If the x value increases so does the y value. Now in a quadratic relationship it is a little different in that this kind of function is actually in the shape of a parabola. The equation for this relationship is ax2 + bx + c = y. The parabolic relationship exists when one variable depends on the square of another and this relationship is often expressed in saying that the y variable varies directly with the square of the x variable.
It is most often called a cube but not all square prisms are cubes. It has its name because it has cubical symmetry.
Quadratic Relationship
It's when one variable is related to another variable squared. It forms a upward curving graph.
A variable times the same variable is called a square of that variable. For example, if the variable is x, then x multiplied by x is written as x^2, which is read as "x squared."
It depends on which variable you wish to solve for.
This is called algebra. In algebra you can have many operations. You can add, subtract, multiply, divide, square, cube, square root, factor, or distribute. There are others but these are the main ones. You use these operations to find the numerical value of the variable.
That will obviously depend on the specific problem. If you have an equation with a variable under a square root sign, it often helps to square both sides of the equation.
Quadratic equations are called quadratic because quadratus is Latin for "square"; in the leading term the variable is squared.
The square root sign is called a radical
a square is ab square
That will depend on the value of the unknown variable
R2 refers to the fraction of variance. it is the square of the correlation coefficient between two dependent variables. It is a statistical term that tells us how good one variable is at predicting another. If R2 is 1.0, then given the value of one variable you can perfectly predict the value of the other variable. If R2 is 0.0, then knowing either variable does not help you predict the other variable. In turn, the higher the R2 value the more correlation there is between the two variables.
That's called a square.