Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = 6x3 − 9x2 − 108x + 6, [−3, 4]
Answer:
The absolute maximum of f(x) on [-3, 4] is 138 and the absolute minimum of f(x) on [-3, 4] is -237.
Step-by-step explanation:
To find the absolute extrema values of [tex]f(x) = 6x^3 - 9x^2 - 108x + 6[/tex] on the closed interval [−3, 4] you must:
1. Locate all critical values. We need to find the derivative of the function and set it equal to zero.
[tex]\frac{d}{dx}f(x)= \frac{d}{dx}\left(6x^3-9x^2-108x+6\right)=\\\\f'(x)=\frac{d}{dx}\left(6x^3\right)-\frac{d}{dx}\left(9x^2\right)-\frac{d}{dx}\left(108x\right)+\frac{d}{dx}\left(6\right)\\\\f'(x)=18x^2-18x-108[/tex]
[tex]18x^2-18x-108=0\\18\left(x^2-x-6\right)=0\\18\left(x+2\right)\left(x-3\right)=0\\\\\mathrm{The\:solutions\:to\:the\:quadratic\:equation\:are:}\\x=-2,\:x=3[/tex]
2. Evaluate f(x) at all the critical values and also at the two values -3 and 4
[tex]\left\begin{array}{cc}x&f(x)\\-3&87\\-2&138\\3&-237\\4&-186\end{array}\right[/tex]
3. The absolute maximum of f(x) on [-3, 4] will be the largest number found in Step 2, while the absolute minimum of f(x) on [-3, 4] will be the smallest number found in Step 2.
Therefore,
The absolute maximum of f(x) on [-3, 4] is 138 and the absolute minimum of f(x) on [-3, 4] is -237.
Heong cut a slice of birthday cake. The slice formed the angle shown. What is the measure of the angle shown?
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Problem:
The standard form of a circle is (x-h)2+(y-k)2=r2 and for the parabola, y-k=a(x-h)2. The (h,k) pair will be the center of the circle and the vertex of the parabola. The radius of the circle is ‘r’ and the focal length of the parabola is f=1/(4a). For the following General Conic Equation: x2+y2-4x-6y-12=0 complete the following problems showing all your work:
A-Complete the square showing all your work to convert to Standard Form:
B-If this is a circle, state the coordinates of the center and give the radius. If this is a parabola, state the coordinates of the vertex and give the focal length. Show all your work.
C -Sketch the Conic. Label the values you found in part B. Be sure to draw or show the radius or focal length.
Group terms that contain the same variable, and move the constant to the opposite side of the equation
(x²-4x)+(y²-6y)=12
Complete
the square twice. Remember to balance the equation by adding the same constants
to each side
(x²-4x+4)+(y²-6y+9)=12+4+9
Rewrite as perfect squares
(x-2)²+(y-3)²=25the answer part A) is
(x-2)²+(y-3)²=5²-----> this is the standard form of the equation of a circle
Part B) (x-2)²+(y-3)²=5²
the center is the point (2,3) and the radius is r=5 units
Part C)
using a graph tool
see the attached figure
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It took Alex 2.5 hours to cover a certain route walking at a rate of 3.6 km/h. How long would it take Alex to cover the same route if he walked at a rate of 4.5 km/h
Answer:
2 hours
Step-by-step explanation:
Identify the figure shown and find its surface area. Explain how you found your answer.
hey can you please help me posted picture of question
A homeowner plants two flowerbeds around his garage. What is the total area he will have planted. Round to nearest tenth.
Vernon has obtained a $105,000, 5/1 30-year ARM at 5%. During the first 3 years, he has an option of paying interest only. If he accepts this offer, what would be his initial payment?
Answer: 437.50
Step-by-step explanation:
What is the vertex of the quadratic y=-2x^2-4x-5
Answer:
(-1,-3)
Step-by-step explanation:
I just took the test, and I got 100%!!!
the scatter plot shows the number of students per class al monida middle school and the number of magazine subscription each class sold for a fund raiser.About how many subscription did the class of 30 students sell
Help with the graph and answer below
The ratio of sugar to flour is 2:3. If there are 6 cups of sugar, how many cups of flour are there
Which of the following holds about 800 milliliters o f water?
The function F(x) = log0.5 x is increasing. The answer is B. False. Just finished taking the quiz I had guessed.
A. True
B. False
Answer:
The statement is false
B is correct
Step-by-step explanation:
Given: [tex]f(x)=\log_{0.5}x[/tex]
Increasing function.
Log function:
[tex]y=\log_ax[/tex]
If 0<a<1 then y is decreasing function.
If a>1 then y is increasing function.
Now, we compare the given function
[tex]\log_ax\rightarrow \log_{0.5}x[/tex]
a=0.5
0.5<1
If 0<a<1 then y is decreasing function.
Therefore, f(x) is decreasing. But we are given f(x) is increasing.
Hence, The statement is false
how do the graphs of f(x)=x^3 and g(x)=(1/3x)^3 relate?
There are 2,000 eligible voters in a precinct. 548 of the voters are randomly selected and asked whether they planned to vote for the democratic incumbent or the republican challenger. of the 548 surveyed, 474 said they would vote for the democratic incumbent. using the 0.99 confidence coefficient, what are the confidence limits for the proportion that plan to vote for the democratic incumbent?
Which of these shows 8 + 3m rewritten using the commutative property of addition? 8m + 3 8 − 3m 3m − 8 3m + 8
Answer:(3m+8)
Step-by-step explanation:
solve the system of equations 5x-2y=88 3x+4y=58 show all work
One endpoint of a line segment is at (4, 2). The line is bisected by placing the midpoint of the line segment at (−2, −1). What are the coordinates of the other endpoint?
A) (−4, −6)
B)(−8, −4)
C)(10, 5)
D)(−8, 4)