9-(.5)^(4)/48
= 9-0.0013020833
=8.9986
The correct question is
<span>Sandra needs to buy 21/25 meters of chain for a home project. Which decimal number is equal to the fraction 21/25?
we have that
21/25--------> multiply by (4/4)
(21/25)*(4/4)=(21*4)/(25*4)-----> 84/100------> 0.84
the answer is the option
0.84
</span>
<span>3 5/6 - 3/4
=</span><span>3 10/12 - 9/12
= 3 1/12
answer
</span><span>B. 3 1/12 </span>
6600 /minute so...
396,000 /hour
For this case we must find the roots of the following equation:

We have to:

Where:

Substituting the values:

We have two roots:

Answer:
