Answer:
take a better picture can't see what it says
First we must apply the Quotient rule that states,
This means that our derivative becomes,
Now we need to calculate 
and 
From here the new equation looks like,
And that is the final result.
Hope this helps.
r3t40
Answer:
Option C. 2x + 20 / x² + 6x – 40
Step-by-step explanation:
f(x) = x + 16 / x² + 6x – 40
g(x) = 1 / x + 10
To find f(x) + g(x), please refer to the attached photo.
Answer:
df refers to degrees of freedom.
the specific value of df in the example is 21.
Step-by-step explanation:
In statistics, <em>degrees of freedom</em> is the number of values in the final calculation of a statistic that are free to vary. It is the number of independent ways by which a dynamic system can move, without violating any constraint imposed on it.
In other words,<em> degrees of freedom is </em>the number of independent pieces of information that went into calculating the estimate, and calculated by
n – 1 where “n” is the number of items in your set.
In the question, a simple random sample of 22 speeds of cars on California Highway 405 is to be used to test the claim, thus the number of items in the survey are 22.
From this we get:
df=22-1=21
formula for a diagonal line in a square is D = Square root of 2 times the length of the side
so square root of 2 times 300 = about 424 feet. the answer is the last one
