Answer:
Should be C
Step-by-step explanation:
Only the same power number can be use to add or subtract :)
But why is A, B and C same kinda stuff?
Got it. Hope this will help.
Answer:
80
Step-by-step explanation:
we search for a square number so that rows*plantsInARow gives us the number
The number should be around 50², guessed
50² = 2500 (to low)
51² = 2601 (still to low)
52² = 2704 (bingo)
now to get from 2624 to 2704 plants he needs 80 more. That is the least number.
He could also go to plant 60² plants an than need slot more.
(would really appreciate the brainliest)
remember that
![x^{\frac{a}{b}}=\sqrt[b]{x^a}](https://tex.z-dn.net/?f=x%5E%7B%5Cfrac%7Ba%7D%7Bb%7D%7D%3D%5Csqrt%5Bb%5D%7Bx%5Ea%7D)
also ![x^{-a}=\frac{1}{x^a}](https://tex.z-dn.net/?f=x%5E%7B-a%7D%3D%5Cfrac%7B1%7D%7Bx%5Ea%7D)
and ![(a^b)^c=a^{bc}](https://tex.z-dn.net/?f=%28a%5Eb%29%5Ec%3Da%5E%7Bbc%7D)
so
![4^{\frac{2}{3}}](https://tex.z-dn.net/?f=4%5E%7B%5Cfrac%7B2%7D%7B3%7D%7D)
first one, that one is clearly not equal since 0.25≠4
2nd one, 0.25=1/4, so
, which matches
3rd one,
, which matches
4th one
which matches
answer is ![0.25^{\frac{2}{3}}](https://tex.z-dn.net/?f=0.25%5E%7B%5Cfrac%7B2%7D%7B3%7D%7D)