Answer:
it would make most sense as the second answer or the one with the yellow dot next to it
Step-by-step explanation:
Step-by-step explanation:
the scanned description is very hard to understand.
so I think what happened :
16x² - 9 = 16
then the first error :
sqrt(16x²) - sqrt(9) = sqrt(16)
that is wrong, as you cannot split a + or - operation inside a sqrt function into + or - separate sqrt results of the parts.
so, correctly, the only possible transformation involving sqrt for both sides :
sqrt(16x² - 9) = sqrt(16)
but it would be even easier to clean up the various constant numbers with each other.
so,
16x² - 9 = 16
16x² = 25
and now we trashes the square root
sqrt(16x²) = sqrt(25)
4x = 5
x = 5/4 or x = -5/4
and I cannot see or understand for my life what the second equation was, as Daniel did something wrong, so I cannot deduct the original equation out of a supposedly wrong
y³ - 1 = 7
Just add all of them up the sides
1. acute
2. obtuse
3. right
4. (draw right angle)
5. (draw acute angle)
6. (draw obtuse angle)
7. (draw obtuse angle)
8. (draw obtuse angle)
9. (draw acute angle)
3 inches i agree too 2020
