What is the answer for 4y^2=81
2 answers:
Answer:
y = ± 4.5.
Step-by-step explanation:
Given : 4y²=81
To find : Solve for y
Solution : We have given that
4y²=81
On dividing by 4 both sides
y²=
y²= 20.25
On taking square root both sides
y =
y = ± 4.5
Therefore, y = ± 4.5.
<span><u><em>Answer:</em></u>
either y = 4.5
or y = -4.5
<u><em>Explanation:</em></u>
To get the solution, we will need to isolate the y on one side of the equation.
<u>This can be done as follows:</u>
4y</span>²<span> = 81
</span>
<span>
y</span>²<span> = 20.25
y = +/- </span>√(20.25)<span>
either y = +</span>√<span>(20.25) = 4.5
or y = -</span>√<span>(20.25) = -4.5
Since there are no restrictions on the value of y, therefore, both answers would be accepted
Hope this helps :)</span>
either y = 4.5
or y = -4.5
<u><em>Explanation:</em></u>
To get the solution, we will need to isolate the y on one side of the equation.
<u>This can be done as follows:</u>
4y</span>²<span> = 81
</span>
<span>
y</span>²<span> = 20.25
y = +/- </span>√(20.25)<span>
either y = +</span>√<span>(20.25) = 4.5
or y = -</span>√<span>(20.25) = -4.5
Since there are no restrictions on the value of y, therefore, both answers would be accepted
Hope this helps :)</span>
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