The Real Zeros of the polynomial can be found by equating the given polynomial to zero(0) .
The polynomial function is a function that involves only non negative integer exponents of a variable in the equation .
For example : 3x+6 is a polynomial which has the exponent equal to 1.
The process to find the real zeros of a polynomial is :
(i) we write the polynomial expression based on what is given.
(ii) Equate the polynomial equal to zero.
(iii) Solve for the variable(s) by using the polynomial factorization.
The degree of the polynomial tells us about the maximum number of distinct zeros that the polynomial can Have . For example, x - 4 has a degree of 1 . Therefore , it has only one real zero .
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You have 2 eggs timers, a 7 min and a 4 min timer. You want to boil a 9 minute egg. How can you do it exactly?
Answer:
You start your first timer, and let it run out, then either let the second timer run for 2 minutes, then take the eggs out.
Step-by-step explanation:
How do you solve systems by elimination with multiplication?.
The process of solving systems by elimination with multiplication for the equation is explained below.
In math the term equation is known as a mathematical statement that is made up of two expressions connected by an equal sign.
Here we need to write down the steps to solve systems by elimination with multiplication.
Here the first steps id to out the equations in Standard Form.
And then here we need to determine which variable to eliminate.
Finally we have to Multiply the equations and solve.
And this process that allows us to multiply both sides of an equation by the same constant while still having an equivalent expression.
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How do you find log 7 to the base 2 on a calculator?.
To find log7 to the base 2 on a calculator, you will need to use the change of base formula that I mentioned earlier: log_b(x) = log_c(x) / log_c(b).
If you want to find log7 to the base 2 on a calculator, you can use the following steps:
Press the log button on your calculator to change to the logarithm mode (usually represented by "log" or "ln").
Enter the number 7
Press the "log" or "ln" button again to switch to the base 2 logarithm mode.
Enter the number you want to find the logarithm of.
Press the division button (/)
Press the log or ln button again and enter the number 7
Press the equals button (=)
The result will be the logarithm of the number with respect to base 2.
Alternatively, you can find the logarithm to base 2 of 7 by dividing the logarithm to base 10 of 7 by logarithm to base 10 of 2 (or natural logarithm of 7 by natural logarithm of 2)
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What is the vertex of the graph of y 3x2 2x 1?.
The vertex of the graph of y = 3x² + 2x + 1 is (-0.33, 1.33)
We know that the general form of a parabola is given by an equation y = ax² + bx + c.
the x coordinate of the vertex of the quadratic equation is given by the formula -b/(2a)
To find y-coordinate we substitute value of x in given quadratic equation and solve it for x.
Consider given quadratic equation y = 3x² + 2x + 1
Comparing given quadratic equation y = 3x² + 2x + 1 with y = ax² + bx + c we get, a = 3, b = 2 and c = 1
The x-coordinate of vertex would be,
-b/(2a)
= -2/(2 × 3)
= -2/6
= -1/3
= - 0.33
substitute x = -1/3 in given quadrtic equation in order to find the y-coordinate.
y = 3(-1/3)² + 2(-1/3) + 1
y = (-1)² - 2/3 + 1
y = 2 - 2/3
y = 4/3
y = 1.33
So, (-1/3, 4/3) is the vertex.
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I just need help with this,
The correct pairs pf points and axis of symmetry are (-1,-8) & y=-8 respectively.
What is the vertex of a parabola?The vertex of a parabola is the point at the intersection of the parabola and its line of symmetry. For a parabola whose equation is given in standard form , the vertex will be the minimum (lowest point) of the graph if and the maximum (highest point) of the graph if .
Given here; A parabola with upwards curve.
Now we know, The vertex is the highest point if the parabola opens downward and the lowest point if the parabola opens upward. The axis of symmetry is the line that cuts the parabola into 2 matching halves and the vertex lies on the axis of symmetry.
Thus we can clearly observe from the graph that (-1,-8) is the vertex of the parabola and we know the parabola is symmetric around its vertex.
Therefore the axis of symmetry of the parabola is y=-8
Hence, The correct pairs pf points and axis of symmetry are (-1,-8) & y=-8 respectively.
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Solve the system of equations by finding the reduced row-echelon form of the augmented matrix for the system of equations. A. C. B. D. Please select the best answer from the choices provided a b c d.
The reduced row-echelon form of the augmented matrix for the system of equations is: 1 0 0 1 | 8, 0 1 0 -2 | -2, 0 0 1 0 | 0. This means that the first equation is reduced to x_1 + x_4 = 8, the second equation is reduced to x_2 - 2x_4 = -2, and the third equation is reduced to x_3 = 0.
Step 1: Subtract 2 times row 1 from row 2 to get row 2 in the form [0 1 0 -2 | -2].
Step 2: Divide row 2 by -2 to get row 2 in the form [0 1 0 1 | 8].
Step 3: Subtract 3 times row 2 from row 1 to get row 1 in the form [1 0 0 1 | 8].
Step 4: Subtract 4 times row 2 from row 3 to get row 3 in the form [0 0 1 0 | 0].
Step 5: The reduced row-echelon form of the augmented matrix for the system of equations is now: [1 0 0 1 | 8], [0 1 0 -2 | -2], [0 0 1 0 | 0]. This means that the first equation is reduced to x_1 + x_4 = 8, the second equation is reduced to x_2 - 2x_4 = -2, and the third equation is reduced to x_3 = 0.
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Why and how did the colonists declare independence?
Answer:The American colonies declared independence from British rule in 1776 because they were seeking to establish themselves as a sovereign nation, separate from British control and governance.
The colonies had grown increasingly discontent with British rule and policies, particularly those related to taxation and trade. The colonists felt that they were not being fairly represented in British government and that the laws and taxes imposed on them by Britain were unjust and burdensome.
In 1765, the British Parliament passed the Stamp Act, which placed a tax on printed materials such as newspapers, legal documents, and books. The colonists saw this as a violation of their rights as British citizens, as they had no representation in Parliament and felt that they were being taxed without their consent. This led to widespread protests and resistance to the tax, known as the Stamp Act riots.
In 1773, the British government passed the Tea Act, which granted a monopoly on the sale of tea to the British East India Company and imposed taxes on tea imported to the colonies. This led to the famous Boston Tea Party, in which colonists dumped 342 chests of tea into the Boston Harbor as a protest against the tax.
These and other events, such as the Quartering Acts and the Intolerable Acts, which were designed to punish the colonies for their resistance, further fueled the colonists' anger and resentment towards British rule.
In 1774, the First Continental Congress was held, in which representatives from the colonies met to discuss a unified response to British policies. The Congress adopted a Declaration of Rights and Grievances, in which they demanded that their rights as British citizens be respected and that they be given fair representation in Parliament.
In 1775, the American Revolutionary War broke out between the colonies and Great Britain. On July 4, 1776, the Second Continental Congress adopted the Declaration of Independence, which stated that the colonies were no longer subject to British rule
Step-by-step explanation:
Answer: The colonists joined together to fight Britain and gain independence.
Step-by-step explanation: Many colonists were angry because no one represented their needs in the British government. Colonists believed they did not have self-government. The British forced colonists to allow British soldiers to sleep and eat in their homes.
What does the distance between two points represent?.
The distance between two points in a two-dimensional coordinate system represents the length of the shortest path between those two points. This length is also called the Euclidean distance, it is a measure of the straight-line distance between two points.
In other words, it is the length of the line segment connecting the two points. It is calculated using the distance formula which is derived from the Pythagorean theorem, it is calculated as the square root of the sum of the squares of the differences of the coordinates of the two points.
The distance between two points is always a positive value and it is a scalar quantity, it does not have any direction associated with it. It is a measure of the separation between two points, regardless of the direction of the line connecting them.
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solve the following quadratic equation
x^2+2x=35
x=
OR
x=
solved, for x^2+2x=35, x=5 or x= -7
x^2+2x=35
Subtract 35 from both sides, and we get
x^2 +2x−35=0
To solve the equation, factor
x^2 +2x−35 using the formula
x^2 +(a+b)x+ab=(x+a)(x+b).
To find a and b, set up a system to be solved.
a+b= 2
ab=−35
Since ab is negative, a and b have opposite signs. Since a+b is positive, the positive number has a greater absolute value than the negative. List all such integer pairs that give product −35.
−1, 35
−5, 7
Calculate the sum for each pair.
−1+35=34
−5+7=2
The solution is the pair that gives sum 2, which are
a=−5
b=7
Rewrite factored expression (x+a)(x+b) using the obtained values.
(x−5)(x+7)
To find equation solutions, solve x−5=0 and x+7=0.
x=5
x= −7
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y=_x + _
what is the slope?
PLS HELP!!!
Answer:
Step-by-step explanation:
y= 1/4x + 2.5
If a parabola's focus is at (-1,-1) and directrix is at y = 7, what is the general form of the equation representing this
parabola?
0x² 2x+16y
49 = 0
O x² - 2x + 2y² + 16y - 47 = 0
O x² + 2x + 16y - 47 = 0
Ox²-47-0
A parabola is a u shaped curve. It is a plane curve whose all points are at a fixed distance form a point called focus.
What is Parabola?A parabola is formed by cutting a right circular cone in half along a plane perpendicular to the cone's generator. It is a locus of a moving point whose separation from the focus is equal to its separation from a stationary line (directrix)
Fixed point is called focusFixed line is called directrixIn general, if the directrix is parallel to the y-axis in the standard equation of a parabola is given as: y2 = 4axIf the parabola is sideways i.e., the directrix is parallel to x-axis, the standard equation of a parabola becomes, x2 = 4aythe equation of a parabola can also be y2 = -4ax and x2 = -4ay if the parabola is in the negative quadrants.To know more about Parabola refer to:
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In the figure, a pair of parallel lines is cut by a transversal. What is the measure of angle C is the measure of angle B is 35 degrees.
A. 35 degrees
B. 90 degrees.
C. 145 degrees.
S. 189 degrees.
Answer: C. 145 degrees
Step-by-step explanation:
Using the information given above, we are now supposed to figure out the measure of angle C. Considering the two angles are supplementary, or two angles with the sum of 180°, we can finally assume that the answer is C.
Angle B + Angle C = 180°
Angle B = 35°
180° - 35° = 145°
Answer: C. 145 degrees
What is an expression of more than two algebraic terms?.
An expression of more than two algebraic terms is called Polynomial.
Polynomial:
Polynomials are made up of two terms: poly (meaning "many") and nominal (meaning "terms"). A polynomial is defined as an expression consisting of variables, constants, and exponents combined by mathematical operations such as addition, subtraction, multiplication, and division (not division by a variable). Based on the number of terms in the expression, it is classified as monomial, binomial, and ternary. Examples of constants, variables, and exponents are:
Constant: For example: 1, 2, 3, etc.variables: Example: g, h, x, y, etc.Exponent: Example: 5 in x5, etc.Polynomials can be classified by degree and power. Based on the number of terms, there are three main types of polynomials:
MonomialBinomialTrinomial.Learn more about Polynomial:
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Help me and answer the question
Answer:
In this example the maximum is the one on the top while the minimum is the one on the curve.
Step-by-step explanation:
The value of y is ____ units. Round answer to tenths.
Answer:
y = 5.2
Step-by-step explanation:
We can use the laws of sine to solve for this, the laws of sine state that:
[tex]\displaystyle{\dfrac{\sin A}{a}=\dfrac{\sin B}{b} = \dfrac{\sin C}{c} = 2R}[/tex]
In this diagram, we can rewrite the general form of sinA, sinB, sinC as:
[tex]\displaystyle{\dfrac{\sin F}{f}=\dfrac{\sin E}{e} = \dfrac{\sin D}{d} = 2R}[/tex]
We can use the equation of [tex]\diplaystyle{\dfrac{\sin F}{f} = \dfrac{\sin E}{e}}[/tex] to solve for the value of e. In this case, f is 7 since sides are opposite to measurements, and the opposite of measurement F is side length 7 units. The opposite side of measurement E is side length y units. Hence, f = 7 and e = y.
[tex]\diplaystyle{\dfrac{\sin F}{7} = \dfrac{\sin E}{y}}[/tex]
We know that the measurement E is 48°.
[tex]\diplaystyle{\dfrac{\sin F}{7} = \dfrac{\sin 48 \textdegree}{y}}[/tex]
We can find the measurement F by using the euclidean triangle theory that all sides will add up to 180°. This will result in 42° + 48° + F = 180. Solve the equation:
[tex]\displaystyle{90 \textdegree + F = 180 \textdegree}\\\\\displaystyle{F = 180 \textdegree - 90 \textdegree}\\\\\displaystyle{F = 90 \textdegree}[/tex]
Hence, the measurement of F will equal to 90°.
[tex]\diplaystyle{\dfrac{\sin 90 \textdegree}{7} = \dfrac{\sin 48 \textdegree}{y}}[/tex]
Solve the equation for y by firstly multiplying both sides by 7y to clear off denominators.
[tex]\diplaystyle{\dfrac{\sin F}{7} \cdot 7y = \dfrac{\sin 48 \textdegree}{y} \cdot 7y}\\\\\displaystyle{y\sin 90 \textdegree = 7\sin 48 \textdegree}[/tex]
We know that sin90° = 1 so we will have [tex]\displaystyle{y=7\sin 48 \textdegree}[/tex]. Now input the value in a calculator since we cannot evaluate sin48° with an ordinary method.
When you put 7sin48° in a calculator, you will get 5.20201377... then you round the value to nearest tenth. Hence, y is 5.2 units.
How do you write zeros in factored form?.
When the preceding equation can be factored as (a+b)(ab) (a + b) (a b), it can be written as a^2 - b^2.
Example: Think about (y^2-100) (y^2+100). Each term in this sentence can be rendered as a square. Here, (y+10) and (y10) serve as the factors. Let's try to answer this now. A) Since any integer cannot be divided by 0 without the result being an undefined number, 0 cannot be a factor of any number other than 0.
B) One is the factor of every number because when one divides a number exactly, leaving no residue, the quotient is equal to the original number.
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What is the value of x ??
Answer:
123°
Step-by-step explanation:
x + 32 + 25 = 180
x = 123
What is the location of -63.2 on a number line
Answer:
to the left of the zero mark at the -63.2 mark
Step-by-step explanation:
What is the ratio for cos?.
The cosine function (also known as the cos function) in triangles is the ratio between the neighbouring side and the hypotenuse.
The complement of sine and one of the three primary trigonometric functions, cosine is one of the three basic trigonometric functions.
The cosine of a right triangle is the ratio between the lengths of the adjacent side and the longest side, or hypotenuse.
Adjacent Side/Hypotenuse = cos theta
If the ratio between the side and hypotenuse is known, the cos inverse function can be used to calculate the angle of any right-angled triangle. The symbol for the cos inverse is [tex]cosx^{-1}[/tex].
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The cosine function (also known as the cos function) in triangles is the ratio between the neighbouring side and the hypotenuse.
The complement of sine and one of the three primary trigonometric functions, cosine is one of the three basic trigonometric functions.
The cosine of a right triangle is the ratio between the lengths of the adjacent side and the longest side, or hypotenuse.
Adjacent Side/Hypotenuse = cos theta
If the ratio between the side and hypotenuse is known, the cos inverse function can be used to calculate the angle of any right-angled triangle. The symbol for the cos inverse is .
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Parallelogram ABCD is a rhombus. Side BC = 5 cm and segment AO = 3.8 cm.
What is the measure of angle d1?
What is the tangent ratio of angle c2?
Answer:
d1=50 and c2 21/25
Step-by-step explanation:
Two step equation that equals 13
This equation can be solved using the addition and subtraction property of equality, x + 7 = 13.
What is an equation?An equation is an expression containing an equal sign that states the equality of two mathematical expressions. It is a statement that two expressions have the same value. Equations often involve variables, which are placeholders for unknown numbers. An equation contains at least one operation, such as addition, subtraction, multiplication, or division. Equations are used in a variety of mathematical applications, from basic algebra to more advanced topics such as calculus.
Subtract 7 from both sides to isolate x.
x + 7 - 7 = 13 - 7
x = 6
Therefore, the two step equation that equals 13 is x + 7 = 13.
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Graph the equation y = -²- 10x - 16 on the accompanying set of axes. You
==
must plot 5 points including the roots and the vertex.
Click to plot points. Click points to delete them.
-10 9 8 7 6 5 4 3
-2
10
4
y
9
-
-4
-10
3
4
56 7
8
9
10
Answer:
I'm unable to plot graph, but I can give you the steps to graph the equation y = -²- 10x - 16 on the given set of axes.
Plot the vertex of the parabola: The vertex of the parabola is the point where the parabola changes direction. To find the vertex, you can use the formula (-b/2a, f(-b/2a)), where a, b, and c are the coefficients of the equation y = ax² + bx + c. In this case, a = -1, b = -10, and c = -16, so the vertex is (-10/2(-1), -(-10/2(-1))² - 10(-10/2(-1)) - 16) = (5,16).
Plot the roots: The roots of the equation are the values of x that make y = 0. To find the roots, you can set y = 0 and solve for x. In this case, y = 0 = -x² - 10x - 16. This equation can be solved by factoring or by using the quadratic formula. The roots are x = 4 and x = -2.
Plot five points on the parabola, including the vertex and the roots. To do this, you can substitute different values of x into the equation y = -x² - 10x - 16 and find the corresponding y-values. For example, you could plot the point (4,0), which is one of the roots, and (5,16), which is the vertex.
Connect the points to form a parabola.
Keep
Step-by-step explanation:
What are the zeros of p x )= 5 x2?.
The zeros of function p(x) = 5 - x² are x = √5 and x = -√5
Consider given polynomial function.
p(x) = 5 - x²
We know that the zeros of a function are the values of the variable of the function that makes the function value equal to 0.
To find the zeros of function p(x), we need to equate p(x) to zero then solve it for x.
⇒ p(x) = 0
⇒ 5 - x² = 0
⇒ 5 - x² - 5 = 0 - 5 ....(subtract 5 from each side of equation)
⇒ -x² = -5
⇒ x² = 5 ......(multiply both the sides by -1)
⇒ x = ±√5 .........(taking square-root of both the sides)
Thus x = √5 and x = -√5 are zeros.
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The complete question is:
What are the zeros of p(x) = 5 - x²?.
The following data give the ditribution table of total houe hold expenditure (in<) of manual work in the city
then,find thye average expenditure which i done by the maximum number of manual worker
The average expenditure which I did by the maximum number of the manual worker is 1847.826
We note that the maximum frequency for the class 1500–2000 is 40. As a result, it belongs to the modal class.
The class interval with the most data points, or what we may refer to as the highest frequency, inside a collection of data is called the modal class.
The class that will include the mode is known as the modal class. The modal class may be determined using the formula I0 I 0 + (f1−f02f1−f0−f2)h ( f 1 − f 0 2 f 1 − f 0 − f 2 ) h
l=1500,h=500,f=40,f
1=24, and f 2=33
∴Mode=(l+ 2f−f1/2f−f2f−f 1 )×h
Mode=1500+ 40−24 / 80−24−33×500
⇒Mode=1500+ 16/23 ×500
=1847.826
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Construct a difference table to predict the next term of the sequence.
6, −2, −3, 7, 32, 76, . . .
Based on the constructed difference table, the next term of this sequence 6, −2, −3, 7, 32, 76, . . . is 143.
What is a sequence?In Mathematics, a sequence can be defined as a series of real and natural numbers in which each term or list of elements are ordered in a particular order and repetitions are allowed.
What is a difference table?In Mathematics, a difference table can be defined as a type of table that is constructed by subtracting adjacent elements (entries) in a sequence, and then repeating the process with next those elements (entries).
Number Difference from previous Difference of differences
6
-2 -8
-3 -1 7
7 10 11 4
32 25 15 4
76 44 19 4
143 67 23 4
First column: -2 - 6 = -8; -3 - (-2) = 1; ....... 143 - 76 = 67.
Second column: -1 - (-8) = 7; 10 - (-1) = 11; .... 67 - 44 = 23.
Third column: 11 - 7 = 4; 15 - 11 = 4 .... 23 - 19 = 4.
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Aaliyah, Julio, Dan, and Miriam are each studying sets of data. Aaliyah is working with 14 data pairs with a correlation coefficient of 0.9. Julio is working with 13 data pairs with a correlation coefficient of –0.8. Dan is working with 10 data pairs with a correlation coefficient of 0.1. Miriam is working with 15 data pairs with a correlation coefficient of –0.2. For which two data sets is a linear regression model reasonable?
The two data sets for which a linear regression model is reasonable include the following: a) Aaliyah’s and Julio’s data sets.
What is a positive correlation?In Mathematics, a positive correlation is used to described a scenario in which two variables move in the same direction and are in tandem.
This ultimately implies that, a positive correlation exist when two variables have a linear relationship or are in direct proportion. This ultimately implies that, when one variable increases, the other increases, as well.
In order to determine if a data set has a good linear relationship, we would have to interpret the correlation coefficient (r), which typically ranges between -1 to 1 as depicted by both Aaliyah’s and Julio’s data sets.
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Complete Question:
Aaliyah, Julio, Dan, and Miriam are each studying sets of data. Aaliyah is working with 14 data pairs with a correlation coefficient of 0.9. Julio is working with 13 data pairs with a correlation coefficient of –0.8. Dan is working with 10 data pairs with a correlation coefficient of 0.1. Miriam is working with 15 data pairs with a correlation coefficient of –0.2. For which two data sets is a linear regression model reasonable?
a)Aaliyah’s and Julio’s data sets
b)Julio’s and Miriam’s data sets
c)Dan’s and Miriam’s data sets
d)Miriam’s and Aaliyah’s data sets
The numbers 630 and 1248 written as the products of their prime products
Answer: The prime factorization of 630 is 2 x 3 x 5 x 7.
The prime factorization of 1248 is 2^4 x 3 x 7.
So, 630 can be written as 2 x 3 x 5 x 7 and 1248 can be written as 2^4 x 3 x 7
In general, to find the prime factorization of a number, you can divide the number by the smallest prime number (2) and continue dividing by prime numbers until the quotient is a prime number. Then divide that quotient by the next smallest prime number, and so on, until the quotient is 1.
Step-by-step explanation:
Find an equation of a phere if one of it diameter ha endpoint (2, 1, 4) and (4, 3, 10
The equation of a sphere if one of its diameters has endpoint (2, 1, 4) and (4, 3, 10) is (x+1)²+(y-1)²+(z+3)²= 11
Using the distance equation to find the distance of the diameter:
d² = (xf-xi)² + (yf-yi)² +(zf-zi)²
d² = (2-4)²+(1-3)²+(4-10)²
d²=4+4+36=44
d=sqrt(44)
The radius is half the diameter, which is: r=d/2
r=sqrt(44)/2
To find the middle of the diameter we are using the center equation:
(xf-xi)/2, (yf-yi)/2, (zf-zi)/2
(2-4)/2, (1-3)/2, (4-10)/2
(-1,1,-3) Center
Now, using the equation for a sphere:
(x-xc)²+(y-yc)²+(z-zc)²=r²
(x+1)²+(y-1)²+(z+3)²=(sqrt(44)/2)²
(x+1)²+(y-1)²+(z+3)²=44/4
(x+1)²+(y-1)²+(z+3)²= 11
Thus, the equation of a sphere if one of its diameters has endpoint (2, 1, 4) and (4, 3, 10) is (x+1)²+(y-1)²+(z+3)²= 11
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d² = (xf-xi)² + (yf-yi)² +(zf-zi)²
d² = (2-4)²+(1-3)²+(4-10)²
d²=4+4+36=44
d=sqrt(44)
The radius is half the diameter, which is: r=d/2
r=sqrt(44)/2
(xf-xi)/2, (yf-yi)/2, (zf-zi)/2
(2-4)/2, (1-3)/2, (4-10)/2
(-1,1,-3) Center
Somebody please help
The expression to represent each ATM transaction for the month is
10 + 2x.
Where x is the number of ATM transactions.
The total cost for 5 ATM transactions is $20.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Monthly account fee = $10
Fee for ATM transaction = $2
The cost of x ATM transaction for a month.
= 10 + 2x
The total cost of 5 ATM transactions for a month.
= 10 + 2 x 5
= 10 + 10
= $20
Thus,
The expression is 10 + 2x.
The total cost is $20.
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What is the maximum value of log x by x?.
The maximum value of log(x)/ x is 1/e.
The function given is f(x) = log(x)/ x
As base is not mentioned assuming that the base is e.
To find maximum value, let us find the critical point of this function equating its first derivative to 0.
d/dx (f(x) = log(x)/ x) = ( 1 - log(x))/ x²
So d/dx (f(x)) = 0 when 1 - log(x) = 0
That is log(x) = 1
So x = e
f''(x) = (2log(x) - 3)/ x³
f''(e) = (2log(e) - 3)/ e³ = -1/e³ < 0
So at x = e, f(x) is maximum.
Thus maximum value of f(x) is at x = e
f(e) = log(e)/ e = 1/e
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