What is the volume of a hemisphere with a diameter of 30.3 ft, rounded to the nearest tenth of a cubic foot?

Step-by-step explanation:

We need to find the radius.

radius is half the diameter. Therefore, we can say that;

Now plug it into the formula:

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.