Answer:
Voluntary sampling
Step-by-step explanation:
In this sample, people elect to participate. They volunteer. That makes this a voluntary sample.
Answer:
A
Step-by-step explanation:
the line is going from left to right ot has a negative gradient
as it goes through (0,0) euqally it is y = -x
Answer:
y=4, y =16, x=10, x=15
Step-by-step explanation:
Plug the x values in the x place and then solve from there and for y values plug em in and easy answer
Answer:
Step-by-step explanation:
324 ft squared
Answer:
(2,4) is a solution to this system of equations
Step-by-step explanation:
Given system of equation are


To find the solution of the given system of equations
To Check that (2,4) is a solution to this system or not
Solving equations (1) and (2)
From equation (1) and y=2x
Now substitute y=2x is equation (2)






10-5x=0
-5x=-10

Substitute x=2 in equation (1)
y=2x
y=2(2)
Therefore y=4
Therefore the solution is (2,4)
Therefore (2,4) is a solution to the system of equations.