Answer:
x = 11
Step-by-step explanation:
Substitute y = -1 into the equation.
x+2y = 9
; x+2(-1) = 9
x+(-2) = 9
x-2 = 9
x = 9+2
x = 11
Answer:
Step 1: Rewrite the first two columns of the matrix.
Step 2: Multiply diagonally downward and diagonally upward.
Step 3: Add the downward numbers together.
Step 4: Add the upward numbers together.
Step-by-step explanation:
hope this helps ;)
Answer:
one x-intercept.
Transformation: shift to the right 8 units.
Step-by-step explanation:
The parent function is 
To find the number of x-intercepts, we equate the function to zero.


There is only one x-intercept at t=0.
The transformed function is

This function is obtained shifting the parent function 8 units to the right.
The x-intercept will now be at t=8.
Hence the image function also has one x-intercept.
Answer:
Step-by-step explanation:
The last three are irrational but I'm not sure about the first four.