To do this, invert the second fraction and then multiply..
-1/9 x 4/3
= -1 x 4 = -4
= 9 x 3 = 27
Final answer = -4/27
The current depth of the hole is at least 20 feet below ground level.
Inequality is an expression that shows the non equal comparison of numbers and variables.
Let d represent the current depth of the hole.
To be at least 40 feet below ground level, he need more than 2 times its current depth.
2d < -40
d < -20
Hence the current depth of the hole is at least 20 feet below ground level.
Find out more on inequalities at: brainly.com/question/11613554
Answer:
3
Step-by-step explanation:
You could make a small (easily repaired) leak and watch it for the amount of time you need to conclude what you need to.
