Solve the following equation using the square root property.

Step-by-step explanation:

Since this quadratic equation does not contain a term in x, we can proceed to isolate the term with the unknown on the left hand side, by subtracting 10 from both sides, and then dividing both sides by 9 as shown below:

Now we apply the square root on both sides to get the value/s for x that make the equation true. Remember to consider plus and minus signs to take care of the two possible solutions involved in the root, so let's do each case separately:

We notice that the numerator on the right side renders the square root of a NEGATIVE number (-5). This originates the imaginary unit "i":

Therefore the correct answer is the third listed option in your pasted image

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !