Runner L had the highest average speed
The number + 10 can be used to indicate a :
10 degree rise in temperature.
Temperature can be measured in Kelvin , Celsius, and Fahrenheit. In all measurement, + number indicate a rise in the temperature
Answer:
x^2 - 4x - 12
Step-by-step explanation:
(x-6)(x+2) = x(x+2) - 6(x+2) = x^2+2x-6x-12 = x^2 - 4x - 12
i hope it helps
Answer:
{x,y,z}={5,−3,3}
Step-by-step explanation:
[1] 2x + 4y + z = 1
[2] x - 2y - 3z = 2
[3] x + y - z = -1
// Solve equation [3] for the variable y
[3] y = -x + z - 1
// Plug this in for variable y in equation [1]
[1] 2x + 4•(-x +z -1) + z = 1
[1] -2x + 5z = 5
// Plug this in for variable y in equation [2]
[2] x - 2•(-x +z -1) - 3z = 2
[2] 3x - 5z = 0
// Solve equation [2] for the variable x
[2] 3x = 5z
[2] x = 5z/3
// Plug this in for variable x in equation [1]
[1] -2•(5z/3) + 5z = 5
[1] 5z/3 = 5
[1] 5z = 15
// Solve equation [1] for the variable z
[1] 5z = 15
[1] z = 3
// By now we know this much :
x = 5z/3
y = -x+z-1
z = 3
// Use the z value to solve for x
x = (5/3)(3) = 5
// Use the x and z values to solve for y
y = -(5)+(3)-1 = -3
Solution :
{x,y,z} = {5,-3,3}
25x-25y that is the answer. You multiply the outside variable with the first variable inside the parenthesis. Next, you do the same thing to the other side and that is your answer. (unless you have to do more work)
