The fundamental theorem of algegra is often cited to say that an n-th degree polynomial has n roots. They may not always be distinct, and they may not always be real.
An n-th degree polynomial may have up to n distinct real roots.
Combining the answers to get the sum of the hours, adding 5.5+6.3+4.25( the decimal equivalents of your fractions listed) is the equivalent of 16.05hrs. The closest answer to this would be an estimated 16.08 AKA Answr C.
Hope this helps!! (:
Answer:
see below
Step-by-step explanation:
y = a ( x-0)^2 + 5 sub in the point given to calculate 'a'
1 = a (4)^2 + 5
-4 = 16a
a = - 1/4
y = -1/4 x^2 + 5
They estimated it by the last digit in 68,658. Since 8 is over 5, you round it up to 70,000. Another way to put it is that 68,658 is closer to 70,000 than it is to 68,000. Does that make sense?