Answer:
(3,-3)
Explanation:
create an equation set equal to zero:
3×(1,-1)=0
distributive property:
3×1= 3 ; 3× -1= -3
(3,-3)=0
Answer: The system of equations have many solutions and the correct options are A,B and D.
Explanation:
The given equations are,
..... (1)
.... (2)
Simplify the second equation.


Divide both sides by 3.

It is same as equation (1). Since equation (1) and (2) are same, therefore all the points lies on the line or which satisfies the equation are the solution of the given system of equations.
Test the points whether the point lies on the line or not.
Check for point A(6,-7).


LHS and RHS are equal, therefore the point A is the solution of the system of equations.
Check for point B(2,1).


LHS and RHS are equal, therefore the point B is the solution of the system of equations.
Check for point C(-2,-9).


LHS and RHS are not equal, therefore the point C is not the solution of the system of equations.
Check for point D(-4,13).


LHS and RHS are equal, therefore the point D is the solution of the system of equations.
Therefore the options A,B and D are correct.
Simply set up a proportion. 1/3 = x/48. Cross multiply afterwards. 48 = 3x. Solve the equation. x = 16. By using proportions which is another form of a ratio you can easily find out that there are 16 adults at the school. Hope this helps :))
Solve for x over the real numbers:x^3 = 1/27
Hint: | Eliminate the power on the left-hand side.Take cube roots of both sides:Answer: x = 1/3