1h 15minutes, I converted each time into fractions, 2hours to

and the 8hour to

, this means, painter #1 finishes 1/2 of the project in 1 hour, and paither #2 finishes 1/8 of project in 1 hour, now when we make each fraction out of 2 hours, so

and

, we add them and get

, then as mixed number, 1 1/4 which is 1 hour and 15min<em>(1/4 of a hour)</em>
I believe im right.
Answer:

Step-by-step explanation:
A standard polynomial in factored form is given by:

Where <em>p</em> and <em>q</em> are the zeros.
We want to find a third-degree polynomial with zeros <em>x</em> = 2 and <em>x </em>= -8i and equals 320 when <em>x </em>= 4.
First, by the Complex Root Theorem, if <em>x</em> = -8i is a root, then <em>x </em>= 8i must also be a root.
Therefore, we acquire:

Simplify:

Expand the second and third factors:

Hence, our function is now:

It equals 320 when <em>x</em> = 4. Therefore:

Solve for <em>a</em>. Evaluate:

So:

Our third-degree polynomial equation is:

Answer:
try b
Step-by-step explanation:
Answer:
Justification:As told in the statement, n stands for the number of bits, and

is the highest number of ways n bits can be arranged in the system.
Now, Antonio wants to show that the character can collect one less key than that. So, that number is

less 1, which is what the formula

- 1 states.
Answer:
The Industrial Revolution shifted from an agrarian economy to a manufacturing economy where products were no longer made solely by hand but by machines. This led to increased production and efficiency, lower prices, more goods, improved wages, and migration from rural areas to urban areas.