Answer:
A. -8
Step-by-step explanation:
The average rate of change can be found with the formula
[f(b) - f(a)]/(b - a) on the interval a to b
Here, a = 3, b = 5, f(a) = -10, and f(b) = -26. Plug in the values and simplify...
[-26 - (-10)]/(5 - 3)
[-26 + 10]/2
-16/2
-8
The square root of infinity is still infinity, or rather, undefined or indeterminate. For example, if you take the square root of a big number, you will
still have a big number as a result, now if you make the number even
bigger, the square root will also get bigger, now imagine what will
happen if this number is infinite.
no because the first five equals 5000
the second 5 equals 500
the third 5 equals 50
and the fourth 5 equals 5.
You can start by subtracting different equations from each other.
3x + 2y + 3z = 1
subtract
3x + 2y + z = 7
2z = -6
divide by 2
z = -3
add the following two expressions together:
3x + 2y + z = 7
3x + 2y + 3z =1
6x + 4y + 4z = 8
subtract the following two expressions:
6x + 4y + 4z = 8
5x + 5y + 4z = 3
x - y = 5
^multiply the whole equation above by 3
3x - 3y = 15
subtract the following two expressions:
3x - 3y = 15
3x + 2y = 10
-5y = 5
divide each side by -5
y=-1
take the following expression from earlier:
x - y = 5
substitute y value into above equation
x - - 1 = 5
2 negatives make a positive
x + 1 = 5
subtract 1 from each side
x = 4
Therefore x = 4, y = -1, z = -3
I checked these with all 3 equations and they worked :)
(it's quite complicated, comment if you don't understand anything) :)
