Answer:
hope im right!
Step-by-step explanation:
i believe it is 128.6!
Using derivatives, it is found that the x-values in which the slope belong to the interval (-1,1) are in the following interval:
(-15,-10).
<h3>What is the slope of the tangent line to a function f(x) at point x = x0?</h3>
It is given by the derivative at x = x0, that is:
.
In this problem, the function is:

Hence the derivative is:

For a slope of -1, we have that:
0.4x + 5 = -1
0.4x = -6
x = -15.
For a slope of 1, we have that:
0.4x + 5 = 1.
0.4x = -4
x = -10
Hence the interval is:
(-15,-10).
More can be learned about derivatives and tangent lines at brainly.com/question/8174665
#SPJ1
Answer:
22.45%
To two decimal places
Step-by-step explanation:
A book has 245 pages and she has only read 55 of the pages. To get the percentage:
55/245 and then multiply it by 100.
55/245
=O.2245 (To four decimal places)
0.2245 x 100
22.45% (To two decimal places)
She has only read 22.45% of the book. To convert it to a whole number, that's 22% of the book has been read
Answer: 5 classes.
Step-by-step explanation:
You can use the rule to determine the number of classes for a frequency distribution.
The rule says that where
is the number of classes
is the number of the data points
We know that the number of data points is = 20.
Next, we start searching for so that we can get a number 2 to the that is larger that the number of data points.
This suggests that you should use 5 classes.