Answer:
None of them are correct. They only thought of combining like terms, which isn't the case.
Step-by-step explanation:
(3^5 6^8)(3^9 6^10) =
(3^5+9) + (3^5 6^10) + (6^8 3^9) + (6^8+10) =
3^14 + (3^5 6^10) + (6^8 3^9) + 6^18
Answer:
x = 5
Step-by-step explanation:
First, we move all variables to one side of the equation. (Don't forget to change signs.)
9x - 8x + x = 7 + 3
Then, we simplify
x + x = 10
2x = 10
10 divided by 2 is equal to 5.
Therefore, x = 5
Hope this helps!
For 11, we can subtract x from both sides for the first equation to get y=8-x, making the slope -1 for both equations and therefore making it parallel.
For 13, we can solve for y in the first equation by subtracting 14 from both sides and therefore getting 2x-14=y. For the next one, we can subtract 4x from both sides to get 10-4x=2y. Dividing both sides by 2, we get 10-2x=y. Since for the equations to be parallel they must be the same and for perpendicular they must be -1/(slope), this fits neither.
Using those two explanations, I implore you to solve the other two on your own!
