Answer:

Step-by-step explanation:
Given
Quadratic equation is

Roots of the quadratic equation
are

So, for the given equation roots are

the correct answer would be -5/12
The equation for volume is length times width times height. So to solve this multiple 1/3x1/3x1/3 because 1/3 is the length, width , and height of the cube(cubes have equal sides). The answer should be 1/27
Answer:
158.76
Step-by-step explanation:
11.7*15.6=182.52
182.52/2=91.26
Area of BCD=91.26
7.5*18=135
135/2=67.5
Area of BAD=67.5
Altogether:
91.26+67.5=158.76
The answer is 55.75! Trust me I took a test on this and its the right one.