Answer:
27.19 Minutes
Step-by-step explanation:
So the Circumference is C = 2r
C = 2··67.5 (the radius)
C ≈ 424.12 metres (rounded to nearest hundredth)
Then you take 424.12 metres and divide it by 0.26 metres (because it is 0.26 metres per seconds) (I like to make this weird table, I don't know how to describe it, you could do it like: (I learned this table from chem, so let me know if you know what kind of table I'm talking about... Its a conversion table...)
The metres cancel out and you end with seconds
You end up getting 1631.23 (rounded to nearest hundredth) seconds. Divide that by 60 (seconds) and you'll get 27.19 (rounded to nearest hundredth) minutes
Answer:
D. 4 real roots and 0 complex roots
Step-by-step explanation:
If I assume that the function you are saying is
There should be up to "4 roots," there can't be more or less than 4 total solutions. First, we need to check how many sign changes are there in this function. There are 3 positive real roots. Now lets check for negative roots.
There are is only 1 negative real root. Since we basically have 4 real roots, and the max is 4. There should be 4 real roots and 0 complex roots.
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