Answer:
Assuming you're doing these values in pairs:
1:9 = 1/9
3:4 = 3/4
35:410 = 7/82
4 = 4
Step-by-step explanation:
it is the first answer. the other answers are WRONG
Answer:
(4a - 9)(4a + 9)
Step-by-step explanation:
Every value in the equation has a square root
The square root of 16 is 4
The square root of a^2 is a
The square root of 81 is 9.
To factor you split the equation by the square roots. For 81, since the original value is negative, one of the roots must be negative so when you multiply it back out to the original, it stays the same.
You can check your answer this way too.
(4a -9)(4a + 9)
= 16a^2 + 36a - 36a - 81
= 16a^2 - 81
I hope this helps!
I don't know for sure but I know that based on seventh grade math that I know the line on the graph would look like a triangle not sure though
