When 11 is subtracted from twice a number, the square root of the result is 4. Find the number.

I think 27/2

Explanation:

Let number = x:

√(2x - 11) = 4

Now to get x, we undo the square root by squaring both sides:

[√(2x - 11)]² = 4²

(2x - 11) = 16

2x = 27

x = 27 / 2

Hope this helps!

1 3 5

step-by-step explanation:

i took the test: )

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.