The answer is: 54 inches would be too long for a shoelace
If I managed to help you, please make sure to mark my answer as the "Brainliest" answer. Thanks! :)
The first one is 6 and the second I is 0
Could you show the circle so we can solve this? we can’t solve it if you don’t show the area of the circle.
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!
