(3/5 - 1/2) divided by 1/2 + 1.6 x (0.3 + 0.42)
1 answer:
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Answer:
Option D [] in the list of possible answers
Step-by-step explanation:
For this problem you are supposed to use a calculator that allows you to do an exponential regression. There are many tools that can help you with that, depending on what your instructors has assigned for your class.
I am showing you the results of a graphing tool I use, and which after entering the x-values and the y-values in independent "List" forms, when I request the exponential regression to fit the data, I get what you can see in the attached image.
Notice that the exponential of best fit with my calculator comes in the form:
with optimized parameters:
Notice as well that since:
the exponential best fit can also be written:
and this expression is very close to the last option shown in your list of possible answers
Answer: 33/35
Step-by-step explanation:
To add these numbers they need to have the same denominators. The LCM of 5 and 7 is 35. So rewrite the fraction and let them both have a denominator of 35.
28/35 + 5/35 = 33/35
same as before, we look at the denominators, hmmm do a quick prime factoring.
3 = 3 * 1
9 = 3 * 3 * 1
since 9 already contains 3 and 1, we can us that