solve for d. sq root d^2-11=5
A. 4,-4
B. 5,-5
C. 5,6
D. 6,-6
I think it is A....?
It is not A, its D. 6,-6
thanks. can you show me how to do it?
√(d^2-11) = 5
d^2-11 = 25
d^2 = 36
...
To solve for d in the equation √(d^2 - 11) = 5, you need to isolate the variable d. Here's how you can do it:
1. Start by squaring both sides of the equation to remove the square root sign:
(√(d^2 - 11))^2 = 5^2
d^2 - 11 = 25
2. Add 11 to both sides of the equation to move the constant term to the other side:
d^2 - 11 + 11 = 25 + 11
d^2 = 36
3. Take the square root of both sides to solve for d:
√(d^2) = √36
d = ±6
So the solutions for d are ±6. Therefore, the correct answer is D, which is 6 and -6.