I assume you mean one that is not rational, such as √2. In such a case, you make a reasonable estimate of it's position, and then label the point that you plot.
For example, you know that √2 is greater than 1 and less than 2, so put the point at about 1½ (actual value is about 1.4142).
For √3, you know the answer is still less than 4, but greater than √2. If both of those points are required to be plotted just make sure you put it in proper relation, otherwise about 1¾ is plenty good (actual value is about 1.7321).
If you are going to get into larger numbers, it's not a bad idea to just learn a few roots. Certainly 2, 3, and 5 (2.2361) and 10 (3.1623) shouldn't be too hard.
Then for a number like 20, which you can quickly workout is √4•√5 or 2√5, you could easily guess about 4½ (4.4721).
They're usually not really interested in your graphing skills on this sort of exercise. They just want you to demonstrate that you have a grasp of the magnitude of irrational numbers.
Solve for b.
b^2= x+4ac
So b=sq root of x+4ac
Let's remember the equation for the volume of a cube:
V= x^3 where x is the length of one side
Since a cube has equal length for length, width, and height.
Now, use what you're given
V= 1331
And put that in terms of x
x^3 = 1331
Now solve for x!
x= cube root (1331)
Think about it! cube root of 1331 * cube root of 1331 * cube root of 1331... will equal 1331 m^3!
Hope this helps
Volume: length*width*height
This problem gives you the three dimensions you need, so…
Multiply: 1 3/4* 1 3/4* 2 1/4
Which equals:
6 57/64 cubic feet
Answer:
It will take 4 years to deplete the account.
Step-by-step explanation:
Prudential Reality has an escrow account that contains $20,000.
The client withdraws $5000 now and that leaves $15000.
After one year an amount of $4500 is withdrawn which leaves ($15000 - $4500) = $10500
After two years an amount of $4000 is withdrawn which leaves ( $10500 -$4000) = $6500.
After three years an amount of $3500 is withdrawn which leaves ( $6500 - $3500) = $3000
After four years an amount of $3000 is withdrawn which leaves ($3000 - $3000) = $0 in the account.
Hence it will take 4 years to deplete the account.
