Answer:
the volume of sphere will be equal to that of the volume of cube as change in shape doesn't effect the volume.
using,
Volume of sphere = volume of cube.
= a^3
Step-by-step explanation:
Answer: 
You can write this as (-infinity, 7) if you aren't able to use the infinity symbol.
====================================================
Explanation:
Think of x < 7 as writing 
So x is between negative infinity and 7, excluding both endpoints.
To write
in interval notation, we write
The curved parenthesis tell us to exclude the endpoint.
Answer:

Step-by-step explanation:
Given

Required
Calculate one of the root of the equation

Factorize


Split equation

Make x the subject of formula in both expressions


<em>From the list of given options, one of the roots of the equation is</em> 
I believe you do 180 - 149 because it's a linear pair, it makes a t shape!!