The correct answer is y=−1/16
168 is what per cent of 420
2 answers:
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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
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Answer: <u>The 2 roads are 1.25 miles apart.</u>
Step-by-step explanation:
If 1 inch equals .25 miles, then you need to multiply .25 by 5.
Use proportions. Make sure the miles are on the same "side" of the fraction. Side meaning the top or the bottom
1 times X equals 1x
.25 times 5 equals 1.25
1.25 divided by 1 equals 1.25.