2sinA - 1 = 0
2sinA = 1
sinA = 0.5
so A = sin-1(0.5) and
so A = pi/6 + 2n*pi radians
or A = 5pi/6 + 2n*pi radians
for all integer values of n.
Equivalently,
A = 30 + 360n degrees
or 150 + 360n degrees for all integer values of n.
6The line of best fit has the equation = -3 + 2.5x. What does this equation predict for a value of x = 3?Answer: 4.5
y = -2.5 is a equation. And solution to the equation is finding the value of the variable. If we see the equation y is already equal to -2.5 which is the solution to the equation.
x = 9/2 or x = -2 Solved by using the quadratic equation formula.
There are no exclude values of the equation, as given.
You cannot solve this equation without knowing the shape.
5.0
There is no value of x that satisfies the equation. You may be missing an operator (+. - sign).
It is the solution of the given equation.
5a - 1 = a - 7 4a = -6 a = -1.5
a solution
If you mean: 2x+5+3x = 25 then the value of x works out as 4
If you found the value of x that is a solution to an equation, you want to substitute that value back into the original equation, to check that it indeed satisfies the equation. If it does not satisfy the equation, then you made an error in your calculations, and you need to rework the problem.
-3/2
Only one value of x satisfies this [x = 3], but y is not specified, so y can be any value. In a 2 dimensional plane, this would be a vertical line at x = 3
y=0. note. this is a very strange "curve". If y=0 then any value of x satisfies the equation, leading to a curve straight along the y axis. For any non-zero value of y the curve simplifies to y = -x. The curve is not differentiable at the origin.
In mathematics, a solution refers to a value or set of values that satisfies an equation, inequality, or system of equations. It is the value or values that make the equation or inequality true.
It is an equation and the value of a is 7