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belka [17]
3 years ago
10

Find the values of x where the extreme values of the function y=x^3-7x-5x

Mathematics
1 answer:
ira [324]3 years ago
6 0
Okay well then we can simplify it first by collecting like term: y=(x^3)-7x-5x y=x^3-12x then we find the derivative y'=3x^2-12 next we set the derivative to zero: 3x^2-12=0-->3(x^2-4)=0-->3(x-2)(x+2)=0 Thus our critical number are: x-2=0--->x=2 and x+2=0--->x=-2 Which is of course makes no sense since this not one of your possible choicesSHOW FULL ANSWER
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What is the length of line segment s a? 1.89 ft 2.43 ft 3 ft 7 ft
Slav-nsk [51]

The ratio of the sides will be constant. Then the value of the length of line segment SA will be 3 ft.

The missing diagram is given below.

<h3>What is the triangle?</h3>

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

The triangles ΔABC and ΔSBT are the similar triangles.

Then the ratio of the sides will be constant.

BS / SA = BT / TC

10 / SA = 9 / 2.7

      SA = 3

Then the value of the length of line segment SA will be 3 ft.

More about the triangle link is given below.

brainly.com/question/25813512

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3 0
2 years ago
Given the formula C = 5(f-32)/9, find the value of C if F is 68
lutik1710 [3]

Answer:

Step-by-step explanation:

C = 5(68 - 32)/9

   = 5(36)/9

    = 180/9 = 20

C = 20

6 0
3 years ago
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const2013 [10]

Answer:

10:2:3

Step-by-step explanation:

PLEASE GIVE BRAINLIEST

8 0
3 years ago
Read 2 more answers
I still need help with similar question
KatRina [158]

Step-by-step explanation:

<u>Step 1:  Determine the axis of symmetry</u>

The axis of symmetry is middle of the parabola.  In this equation we see that at x = -1 we have the vertex and also the middle of the parabola.  So our axis of symmetry is x = -1.

<u>Step 2:  Determine the vertex</u>

The vertex is the minimum or maximum of a parabola and is bent in a crest form.  In this example the vertex is at (-1, -3) because we are using the tip of the graph.

<u>Step 3:  Determine the y-intercept</u>

The y-intercept is where the graph intersects with the y-axis.  In this example we intersect the y-axis at -4 so that means that our point would be (0, -4) meaning that we intersect x = 0 at -4.

<u>Step 4:  Determine if the vertex is a min or max</u>

Looking at the graph we can see that the rest of the red line is beneath the vertex point which means that the vertex is a max.

<u>Step 5:  Determine the domain</u>

The domain is the x-values that we are going to be using and we know that we are reaching toward positive and negative inifity which means that we are using all real numbers.

<u>Step 6:  Determine the range</u>

The range is the y axis and what y values we are able to reach using the graph.  In this example we can see that all y-values above -3 are not being used therefore the range is y \leq -3

3 0
2 years ago
Y=arccos(1/x)<br><br> Please help me do them all! I don’t know derivatives :(
Fantom [35]

Answer:

Step-by-step explanation:

3 0
2 years ago
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