Answer:
(- 1, 1 )
Step-by-step explanation:
x + 5y = 4 → (1)
4x + 12y = 8 → (2)
multiplying (1) by - 4 and adding to (2) will eliminate x
- 4x - 20y = - 16 → (3)
add (2) and (3) term by term to eliminate x
0 - 8y = - 8
- 8y = - 8 ( divide both sides by - 8 )
y = 1
substitute y = 1 into either of the 2 equations and solve for x
substituting into (1)
x + 5(1) = 4
x + 5 = 4 ( subtract 5 from both sides )
x = - 1
As a check
substitute these values into the left side of both equations and if equal to the right side then they are the solution.
- 1 + 5(1) = - 1 + 5 = 4 = right side
4(- 1) + 12(1) = - 4 + 12 = 8 = right side
(- 1, 1 ) is the solution to the system of equations
Answer:
Option 1 and 3 are continuous graph.
Step-by-step explanation:
We have been given the four graphs we need to tell which one among these given graphs is continuous
Option 1 is continuous since, there is no break in the graph and points are joint that is a straight line.
Option 2 is discrete graph it is not continuous because these are points which are not joint.
Option 3 is continuous since, there is no break in the graph and points are joint that is a straight line.
Option 4 Option 2 is discrete graph it is not continuous because these are points which are not joint.
Answer:
y = -2x+5
Step-by-step explanation:
y = -2x+1 is in the form y= mx+b where m is the slope and b is the y intercept
-2 is the slope
Parallel lines have the same slope so our new line will have the same slope
y = -2x+b
The point given is the y intercept (value when x is zero)
b = 5
y = -2x+5
Answer:
I think Prism b
Step-by-step explanation:
If you add the numbers up prism b is 17 and prism a is 16. I hope this helped
