The local maximum and minimum points are:x=-5: Local maximum at ( -5, f(-5) ) = ( -5, 1026 )x=3: Local minimum at ( 3, f(3) ) = ( 3, -32 )
Given derivative function: $f'(x)=(x-5)^2(x+7)$
For this function, the required information is as follows:
a. Critical points of f:The critical points are those where the derivative is either zero or undefined.
At these points, the slope of the function is zero or undefined. In other words, they are the stationary points of the function.
Here, f'(x)=(x-5)^2(x+7)At x=5,
f'(5) = (5-5)^2(5+7) = 0
At x=-7, f'(-7) = (-7-5)^2(-7+5) = 0
So, the critical points are x=5, x=-7.
b. Increasing or decreasing intervals of f:Let's take x < -7: As f'(x) is negative, f(x) is decreasing in this interval.
(x+7) is negative for x < -7.
Let's take -7 < x < 5: As f'(x) is positive, f(x) is increasing in this interval. (x-5) is negative for x < 5 and (x+7) is negative for x < -7.
So, both the factors are negative in this interval.
Let's take x > 5: As f'(x) is positive, f(x) is increasing in this interval. (x-5) and (x+7) are both positive in this interval.
So, f is decreasing for x < -7, increasing for -7 < x < 5 and increasing for x > 5.c. Local maximum and minimum points of f:A local maximum or minimum point is that point where the function changes its trend from increasing to decreasing or vice versa.
For this, we need to find the second derivative of the function.
If the second derivative is positive, then it's a minimum point and if it's negative, then it's a maximum point.
Here, $f'(x)=(x-5)^2(x+7)$
On taking the second derivative, we get
$f''(x)=2(x-5)(x+7)+2(x-5)^2$or
$f''(x)=2(x-5)[x+7+2(x-5)]$
or $f''(x)=2(x-5)[x+2x-3]
$or $f''(x)=2(x-5)(3x-3)
$or $f''(x)=6(x-5)(x-1)
As $f''(x) > 0$ for $1 < x < 5$, there is a local minimum point at x=3, and as $f''(x) < 0$ for $x < 1$, there is a local maximum point at x=-5.
Therefore, the local maximum and minimum points are:x=-5: Local maximum at ( -5, f(-5) ) = ( -5, 1026 )x=3: Local minimum at ( 3, f(3) ) = ( 3, -32 )
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Which of the following is the most reactive? a. Li b. Cu c. Zn d. Na e. Ag
The most reactive element among the options provided is option d. Na (sodium).
the most reactive element, we can consider the periodic trend known as the reactivity trend.
This trend states that reactivity generally increases as you move down Group 1 elements, also known as the alkali metals, in the periodic table.
Sodium (Na) is located in Group 1 of the periodic table, and it is known to be highly reactive. It has one valence electron in its outermost energy level, which it readily donates to other elements.
This makes sodium highly reactive, especially in reactions with non-metals like oxygen (O) or chlorine (Cl).
Comparing sodium (Na) to the other options:
- Lithium (Li) is also a Group 1 element, but it is less reactive than sodium because it has a smaller atomic radius and a stronger attraction between its nucleus and valence electrons.
- Copper (Cu) and zinc (Zn) are transition metals and are less reactive than sodium because they have partially filled d orbitals that shield the valence electrons from outside interactions.
- Silver (Ag) is a noble metal and is the least reactive among the options. It has a completely filled d orbital, making it less likely to participate in chemical reactions.
the sodium (Na) is the most reactive element due to its location in Group 1 and its tendency to readily donate its valence electron in chemical reactions.
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The second derivative of g is 6x.
x=2 is a critical number of g(x).
Use second derivative test to determine whether x=2 is a relative min, max or neither.
To determine whether x = 2 is a relative minimum, maximum, or neither, we can use the second derivative test. The second derivative of g(x) is given as 6x.
At x = 2, the second derivative is 6(2) = 12, which is greater than 0.
The second derivative test states that if the second derivative is positive at a critical point, then the function has a local minimum at that point.
Since the second derivative is positive at x = 2, we can conclude that x = 2 is a relative minimum of g(x). This means that at x = 2, the function g(x) reaches its lowest point within a small interval around x = 2. It implies that the function is increasing both to the left and right of x = 2, making it a relative minimum.
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Two tugboats that are 118 ft apart pull a barge, as shown. If the length of one cable is 206 and the length of
the other is 227, find the angle formed by the two cables.
Answer:
26.903
Step-by-step explanation:
a = 77 m
b = 72 m
c = Distance between the tugboats = 35 m
3/4(x+2)=x-2 . solve for x
help please and thank you
Answer:
I think its right , acute and scalene
Step-by-step explanation:
Using the letters $A$ and $B$, the following two-letter code words can be formed: $AA$, $AB$, $BB$, $BA$. Using the letters $A$, $B$, and $C$, how many different three-letter code words can be formed
Given that using the letters A and B, the numbers two-letter code words can be formed: AA, AB, BB, BA. We are asked to use the letters A, B, and C to determine the number of different three-letter code words that can be formed.
A code word is a string of characters used to represent a message, where each character is usually represented by a unique symbol.A code word is a set of $3$ distinct elements of since it is three letters long. There are a total of $3$ choices for the first letter, $3$ choices for the second letter, and $3$ choices for the third letter.
We then have $3\times3\times3$ or $27$ possible code words that can be formed using these letters. Thus, the number of different three-letter code words that can be formed using the letters A, B, and C is $27$.
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You start a travelling car wash service. You spend $30 on supplies and plan to charge
$6 for each car you wash. Which of the following equations could be used to find your
profit based on the number of cars you wash?
O y = 6x - 30
O y = 6x
O y = 6x + 30
Answer:
y= 6x - 30
Step-by-step explanation:
First yu would take the 30 dollars you spent then you will subtract 6 times how many cars you have done.
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Rearrange 4(2x+y)=11+7y to make x the subject
thanksxx
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable
x = 11+3y/8
Step-by-step explanation:
Answer:
4(2x + y) = 11 + 7y
1. expand the brackets 8x + 4y = 11 + 7y
2. move +4y to the other side 8x = 11 + 3y
3. move 8 to the other side x= (11 + 3y)/8
Step-by-step explanation:
let u and v be vectors in three dimensional space. if u*v = 0, then u=0 or u=0. state if this is true or false. explain why.
The statement "Let u and v be vectors in three-dimensional space. If u*v = 0, then u=0 or u=0." is false, and here's why:
When two vectors u and v have a dot product of 0 (u*v = 0), it means that the vectors are orthogonal, or perpendicular, to each other.
The statement incorrectly states that u=0 or u=0 (which seems like a typo, as it should say u=0 or v=0) if the dot product is 0. This is not necessarily true, as the vectors can be non-zero and still be orthogonal to each other. For example, if u = [1, 0, 0] and v = [0, 1, 0], the dot product is 0 (u*v = 0), but neither u nor v is the zero vector.
So, the statement is false because it is not required that one of the vectors (u or v) must be the zero vector if their dot product is 0. They can both be non-zero vectors and still have a dot product of 0 if they are orthogonal to each other.
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sandeep, hee, sara, and mohammad play euchre with a standard deck consisting of 24 cards (a, k, q, j, 10 , and 9 from each of the four suits of a regular deck of playing cards). in how many ways can the deck be dealt so that each player receives 5 cards, with 4 cards left in the middle, one of which is turned face-up? the order of the 3 cards that are left face-down in the middle does not matter, but who receives a particular set of 5 cards (for example, sara or sandeep) does matter.
There are 23,311,945,600 possible ways to deal the cards to the four players and choose one card to be turned face-up in the middle.
We can calculate the number of ways to deal the cards to the four players and then multiply by the number of ways to choose which card is turned face-up in the middle.
First, there are 24 choose 5 ways to deal the first hand, since each player receives 5 cards. Then, there are 19 choose 5 ways to deal the second hand, since there are now 19 cards left. Similarly, there are 14 choose 5 ways to deal the third hand and 9 choose 5 ways to deal the fourth hand.
So, the number of ways to deal the cards to the four players is:
24 choose 5 * 19 choose 5 * 14 choose 5 * 9 choose 5 = (24! / (5! * 19!)) * (19! / (5! * 14!)) * (14! / (5! * 9!)) * (9! / (5! * 4!))
Now, we need to multiply this result by 4, since there are 4 possible cards to turn face-up in the middle. So, the final answer is:
4 * 24 choose 5 * 19 choose 5 * 14 choose 5 * 9 choose 5 = 4 * (24! / (5! * 19!)) * (19! / (5! * 14!)) * (14! / (5! * 9!)) * (9! / (5! * 4!)) = 4 * 5,827,986,400 = 23,311,945,600.
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the set of all possible output values of a function? a. output
b. input
c. range
d. domain
The set of all possible output values of a function is called the range. Option c, range, is the correct answer.
To understand this concept, let's break it down step by step:
1. A function is a relationship between inputs (also known as the domain) and outputs (also known as the range).
2. The domain refers to all the possible input values that can be used as input to the function.
3. The range, on the other hand, refers to all the possible output values that the function can produce.
4. For example, let's consider a function that takes the age of a person as input and returns their height. The domain of this function could be all the possible ages, while the range could be all the possible heights that correspond to those ages.
5. It's important to note that the range can vary depending on the function. In some cases, the range may be limited, while in others, it may be infinite.
6. By understanding the range of a function, we can determine all the possible output values that the function can produce.
In summary, the set of all possible output values of a function is known as the range.
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Which term describes the set of all possible output values for a function?
a. output
b. input
c. range
d. domain
1. Wendy wants to find the width, AB, of a river. She walks along the edge of the river 300 ft and marks point C. Then she walks 80 ft further and marks point D. She turns 90° and walks until her location, point A, and point C are collinear. She marks point E at this location, as shown.
(a) Can Wendy conclude that ΔABC and ΔEDC are similar? Why or why not?
(b) Suppose DE = 50 ft. Calculate the width of the river, AB. Show all your work.
Answer:
It can be deduced that the triangles are similar because the three internal angles are equal for both triangles.
How to solve the triangle?It should be noted that the triangles are similar because the three internal angles are equal.
In this case, the ratio of the corresponding sides are equal and the corresponding angles are congruent.
The width of the river will be:
300/80 = AB/50
AB = (300 × 50)/80
AB = 187.50 feet.
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Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. What was the total cost before sales tax? Round your answer to the nearest cen
The total cost before the sales tax was 19.828 pounds.
For a party, Jordan purchased 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad.
We have to determine the total cost before sales tax.
As per the question, we have prices as:
cost of turkey = 3.95 per pound
cost of egg cheese = 1.3 per pound
cost of egg salad = 0.89 per pound
The total cost of turkey = 3.8 × 3.95 = 15.01 pounds
The total cost of cheese = 2.2 × 1.3 = 2.86 pounds
The total cost of egg salad = 2.2 × 0.89 = 1.958 pounds
The total cost before sales tax = 15.01 + 1.958 +2.86
Apply the addition operation, and we get
The total cost before sales tax = 19.828 pounds
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The question seems to be incomplete the correct question would be:
Jordan bought 3.8 pounds of turkey, 2.2 pounds of cheese, and 3.6 pounds of egg salad for a party. If prices are 3.95 per pound turkey, 1.3 per pound cheese and 0.89 per pound egg salad What was the total cost before sales tax?
amahle makes the minimum salary for an actuary. asaad makes the median salary for a cpa. who makes more money?
Asaad having median salary makes more money in comparison to Amahle who makes minimum salary.
From the attached box plot we have,
Box plot always shows,
First Minimum → Lower quartile → Median → Upper quartile → Maximum
The minimum salary for an actuary is equals to
Approximately 35 dollars
And the median salary for a CPA from the box plot is equals to,
Approximately 60 dollars
Here , by comparing the both the values we have,
Median salary for CPA (60 dollars ) is greater than minimum salary for actuary ( 35 dollars ).
The median salary for a CPA is typically higher than the minimum salary for an actuary.
Therefore, Asaad representing median salary makes more money than Amahle .
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The above question is incomplete, the complete question is:
Amahle makes the minimum salary for an actuary. Asaad makes the median salary for a CPA. Who makes more money?
Box plot is attached.
Derek can do 50 pushups. Roger can do
8% fewer than Derek can do. How many
pushups can Roger do?
Answer: 40
Step-by-step explanation: 50x0.8=40
Okay, maybe im wrong? But i dont see how its 4 thats more than half.
Rodger can do 46 pushups.
50 * 0.92 = 46
Edit: To better clarify, 0.92 is from 1.00 - 0.08.
... 8 percent fewer than 100 percent is 92 percent; 1.00 - 0.08 = 0.92
Keep in mind that:
1.00 = 100%
0.08 = 8%
0.92 = 92%
After finding this you may multiply 50 * 0.92 to get 46.
Give the difinition, formula, and example problem of permutation, combination & probability... please asap huhu I'll mark you as the brainliest if can do this
Answer:
Answer:
Permutation:
In mathematics, a permutation of a set is, loosely speaking, an arrangement of its members into a sequence or linear order, or if the set is already ordered, a rearrangement of its elements. The word "permutation" also refers to the act or process of changing the linear order of an ordered set.
Formula:
\(nPr=\frac{n!}{(n-r)!}\)
Example:
Permutations are the different ways in which a collection of items can be arranged. For example, the different ways in which the alphabets A, B and C can be grouped, taken all at a time, are ABC, ACB, BCA, CBA, CAB, BAC. Note that ABC and CBA are not the same as the order of arrangement is different.
Combination:
In mathematics, a combination is a selection of items from a collection, such that the order of selection does not matter.
Formula:
\(nCr=\frac{n!}{r!(n-r)!}\)
Example:
Combination: Picking a team of 3 people from a group of 10.
C(10,3) = 10!/(7! * 3!) = 10 * 9 * 8 / (3 * 2 * 1) = 120.
Probability:
Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates the impossibility of the event and 1 indicates certainty.
Formula:
Conditional Probability P(A | B) = P(A∩B) / P(B)
Bayes Formula P(A | B) = P(B | A) ⋅ P(A) / P(B)
Example:
Probability is the likelihood or chance of an event occurring. For example, the probability of flipping a coin and its being heads is ½, because there is 1 way of getting a head and the total number of possible outcomes is 2 (a head or tail). We write P(heads) = ½.
~permutation~
Permutation is a term that in mathematics refers to several different meanings in different areas.
Permutation can be permutation with repetition and permutation without repetition.
nPr=
(n−r)!
n!
~Permutation without repetition~
Permutation means to combine the default elements in all possible ways so that each group contains all the default elements.
The number of permutations of a set of n different elements is equal Pn=n×(n-1)×...×2×1=n!
~Permutation with repetition~
If between n given elements there are k1 equals of one kind, k2 equals of another kind,..., ky equals of rth kind, we speak of permutations with repetition.
~combinations without repetition~
In many counting problems, the order of the selected elements is not important.
Each choice of r different elements of an n-member set determines one of its subsets that has r elements, we call it a combination of r-th class without repetition of n elements.
nCr=
r!(n−r)!
n!
~combinations with repetition~
Repetition combinations are combinations in which elements can be repeated.
~Variations without repetition~
A variation of the r-th class in an n-membered set is each ordered r-torque of different elements.
(We can determine this number using the principle of consecutive counting).
~Variations with repetition~
If the elements in ordered r-tuples can be repeated we are talking about variations with repetition.
(We can determine this number using the principle of consecutive counting).
Sue has 3 cats. Each cat eats 1 4 of a tin of cat food each day. Sue buys 4 tins of cat food. Has Sue bought enough cat food to feed her cats for 5 days? You must show how you get your answer
Answer:
3 3/4 tins of food
Step-by-step explanation:
Number of cats = 3
Quantity of food for each cat per day = 1/4 of a tin
Total tins of cat food sue bought = 4 tins
Has Sue bought enough cat food to feed her cats for 5 days?
Quantity of food 3 cats eat per day = Quantity of food for each cat per day × Number of cats
= 1/4 × 3
= 3/4 of a tin
Total Quantity of food 3 cats eat for 5 days = Quantity of food 3 cats eat per day × 5 days
= 3/4 × 5
= (3 * 5) / 4
= 15/4
= 3 3/4 tins of food
Total Quantity of food 3 cats eat for 5 days = 3 3/4 tins of food
Recall,
Total tins of cat food sue bought = 4 tins
Therefore, Sue bought enough cat food to feed her cats for 5 days
Why is it important that algorithms be executed in a reasonable time?
Algorithms should be executed in a reasonable time because when an algorithm takes too long to execute, the user may lose interest, and it may not be useful for real-time applications.
As a result, the algorithm's performance should be as good as possible so that the user does not have to wait a long time to get the answer. Additionally, as the number of data sets grows, an algorithm's execution time grows exponentially, making it more difficult to process more significant data sets.
The goal of an algorithm is to accomplish a specific task. When an algorithm can perform a task quickly and efficiently, it is considered successful. The performance of an algorithm can be measured in terms of its execution time, also known as runtime. The runtime is the time it takes for an algorithm to complete its task from start to finish.
A reasonable time for an algorithm is critical since it decides the algorithm's effectiveness in achieving its goal. In general, algorithms must be effective and accurate, but they must also be quick and efficient. If an algorithm does not execute efficiently, it may be useless to the user because it may not be able to process large data sets quickly or in real time.
Algorithms must be executed in a reasonable time to ensure the algorithm's effectiveness and user satisfaction.
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Ayuda con esto vale 7.5% de la nota doy 15 puntos
Answer:
dagdagan mo hoy daya
Step-by-step explanation:
1733
Please help ASAP
Will mark brainliest!
Answer:
x = 13
I hope that is what your looking for, my explanation will make no sense to you because it's so messy. So sorry no explanation
Answer:
x=13
Step-by-step explanation:
jhjsjdbdjdjndjdidbd
Please help me, I need this ASAP.
60 POINTS
Answer:
Yes the ordered pair is a solution
Step-by-step explanation:
plug on the numbers
2< 2(-1) +8
2 < 6
4(2) > -4(-1)-6
8> 4-6
8> -2
Question 4
Davey is setting up a retirement account, planning to invest $5,000 per year. Assume the account earns 9.35%. He will keep these deposits up for the first 20 years, and then stop making deposits, leaving the account open for another 20 years. Based on these assumptions, how much will he have in the account at the end of 40 years?
Hence, after 40 years, Davey will have $1,476,289.64 in his retirement account as n = the number of cycles.
what is unitary method ?A problem-solving strategy known as the unitary technique is determining the worth of one unit of such a quantity and utilising that value to determine the value of an other number of units related to that quantity. For issues where the price of one unit is given and the value of some other quantity is needed, it is a proportionality strategy. The unitary method's fundamental principle is to establish a ratio between two numbers, where one of the numbers is represented in the form of one unit while the other quantity is defined in terms of a greater number of units.
given
If Davey doesn't add any more money to his retirement account for the next 20 years, it will increase to:
\(FV = P * (1 + r)^n\)
where FV is the lump sum's future value
P is the lump sum's present value, which in this example is $214,111.26.
R is the annual interest rate, which in this case is 9.35%.
n = the number of cycles (in this case, 20 years)
The following equation can be used to determine Davey's retirement account's potential value after 40 years:
\(FV = 214,111.26 * (1 + 0.0935)^20 = $1,476,289.64\)
Hence, after 40 years, Davey will have $1,476,289.64 in his retirement account as n = the number of cycles.
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In the figure 11 || 12 and 13 is a transversal. What is the value of |5p - 3q|?
The value of ║5p-3q║=180°.
It is given that line l₁ & l₂ are parallel and l₂ & l₃ are transversal then
they must follow the property that the alternate exterior angles must be equal i.e. ∠ q = 135°.
Also ∠ p + ∠ q = 180°.
Therefore, ∠ p = 45°.
Now to solve ║5p-3q║, substituting the values of p & q in the given equation
║5*45 - 3*135║ = 180°.
Hence, ║5p-3q║=180°.
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Which lines are parallel? How do you know?
Answer:
The two at the left are parallel.
Is the airplane’s altitude a function of time?
Answer:
No, because each output of altitude has more than one input of time. ... No, because the altitude is constant between 60 minutes and 130 minutes
Step-by-step explanation:
look at the graph
Answer: C
Step-by-step explanation:
Write an explicit formula for an the nth term of the sequence 7,3, 1,....
Answer:
20
Step-by-step explanation:
Answer:
nth term = 7+(n-1)4
Step-by-step explanation:
6(z+9) I need help figuring this out
Solve For n !
\( \large \frak{2n + 5 = 6( {n}^{2} - 5) }\)
Thank You!:)
The solution to the equation 2n + 5 = 6( n² - 5 ) is n = ( 1 - √(211 )) / 6 and n = ( 1 + √(211 )) / 6
What is the solution to the quadratic equation?Given the quadratic equation in the question;
2n + 5 = 6( n² - 5 )
First we simplify the given equation;
2n + 5 = 6( n² - 5 )
2n + 5 = 6n² - 30
6n² - 2n - 5 - 30 = 0
6n² - 2n - 35 = 0
To solve for n, we use the quadratic formula.
n = (-b±√(b² - 4ac)) / (2a)
Compare 6n² - 2n - 35 = 0 to the quadratic equation in its standard form an² + bn + c = 0.
a = 6b = -2c = -35Plug the values into the quadratic formula
n = (-b±√(b² - 4ac)) / (2a)
n = ( -(-2) ±√( (-2)² - 4 × 6 × -35 )) / (2 × 6 ))
n = ( 2 ±√( 4 + 840 )) / ( 12 )
n = ( 2 ±√( 844 )) / ( 12 )
n = ( 2 ±2√(211 )) / ( 12 )
n = ( 1 ± √(211 )) / 6
n = ( 1 - √(211 )) / 6 or n = ( 1 + √(211 )) / 6
Therefore, the values of n are ( 1 - √(211 )) / 6 and ( 1 + √(211 )) / 6.
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ratio and proportion
One of the angle of pair of supplementary angle is 120 degree. find the ratio of pair of supplementary angles.
Answer:
2 : 1
Step-by-step explanation:
Supplementary angles are two angles whose measures add up to 180°
If one of the angle = 120°
The other angle = sum of supplementary angle - one of the angle
= 180° - 120°
= 60°
The other angle = 60°
ratio of pair of supplementary aangle = 120° : 60°
= 120° / 60°
= 2/1
= 2 : 1
ratio of pair of supplementary aangle = 2 : 1
Find the slope of the line \mathrm{y}=5\mathrm{x}+4y=5x+4.
The slope of the line y = 5x + 4 is 5.
Slope i.e. m = 5.
Given, a line of equation
y = 5x + 4
We have to find the slope of the given line,
Now, as we know the slope-intercept form of a line i.e.
y = mx + c
where, m is the slope of the line and c is the y-intercept of the line.
So, using the same form in the line, we get
y = 5x + 4
the slope of the line is 5.
Hence, the slope of the line y = 5x + 4 is 5.
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