how to find where derivative is positive, negative, and undeffined

Answer:

The rule for this geometric sequence is that the number is being halved each time. This can be expressed as a general rule as follows: an = a1 * (1/2)^n-1 , where a1 is the first term, n is the number of the term in the sequence, and an is the nth term. Therefore, the nth term of this sequence is an = 64 * (1/2)^n-1.

When production volume exceeds the breakeven point, we can expect (a) profit.

The Breakeven Point is the level of production at which a company's total revenue equals its total expenses, and the company neither makes a profit nor incurs a loss.

When production volume exceeds the breakeven point, the company's total revenue exceeds its total expenses, which leads to a profit.

Option (b) :  Fixed cost does not necessarily decrease when production volume exceeds the breakeven point.

Option (c) : Marginal revenue does not necessarily decrease when production volume exceeds the breakeven point.

Option (d) : A loss is not expected when production volume exceeds the breakeven point.

Therefore , If production volume is greater than the breakeven point, the company is expected to make a profit.

The given question is incomplete , the complete question is

When production volume exceeds the breakeven point, we can expected​

​(a) profit

(b) fixed cost to decrease

(c) ​marginal revenue to decrease

​(d) a loss

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Tomatoes are typically lighter than cucumbers since the mean weight for tomatoes is less than the mean weight for cucumbers.

Answer:

Lighter, less

Step-by-step explanation:

The mean is also known as the average. This means that it is the sum of all values divided by the total number. Therefore it is said that on average, tomatoes weigh less than cucumbers.

The solution to the inequality is x > 1

From the question, we have the following parameters that can be used in our computation:

3x - 1 > 2

Subtract -1 from both sides of the expression

So, we have

3x > 3

Divide both sides by 3

This gives

x > 1

Hence, the solution is x > 1

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When x = 4 and y = 5, the expression evaluates to 23.5.

The expression is (x² + y³)/(2 + x). Plugging in x = 4 and y = 5, we get:

(4² + 5³)/(2 + 4) = 16 + 125/(2 + 4) = 141/(6) = 23.5.

So when x = 4 and y = 5, the expression evaluates to 23.5.

The method of substituting values for variables in an expression to find its numerical value is a fundamental concept in algebra and mathematics. When evaluating an expression, we simply replace the variables with the given values and perform the arithmetic operations according to the rules of arithmetic. This process allows us to find the numerical result of the expression for a specific set of inputs.

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A stratified random sample size is being used by Donald. He is segmenting the population into groups and choosing a representative sample of pupils from each category at random.

To examine the eating patterns of all pupils attending his school, Donald is utilising stratified random sampling. In this kind of sampling, the population is divided into strata, or groups, and a proportionate number of people from each category are randomly chosen to make up the sample. To make sure the sample is representative of the total community, Donald in this instance is grouping the pupils by grade level. Then he gathers information from the sample in order to make generalisations about the eating patterns of all the pupils enrolled in his school. A representative sample can be obtained and reliable population inferences can be made using stratified random sampling

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The recommended behavior that Nina is practicing is ethical social media usage.

Ethical social media usage refers to responsible and respectful behavior when using social media platforms. This includes respecting others' privacy, avoiding the spread of false information, not engaging in cyberbullying or harassment, and being mindful of one's own digital footprint.  This is what Nina is doing by making sure what she shares is accurate.

Additionally, ethical social media usage also involves being transparent about one's identity and intentions, and recognizing the power of one's words and actions in the digital world.

.

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Answer:

Read below:

Step-by-step explanation:

To find the perimeter of a triangular prism, you need to add up the lengths of all three sides of the triangular base and all three sides of the rectangular lateral faces.

The formula for the perimeter of a triangular prism is P = a + b + c + 3l, where a, b, and c are the lengths of the sides of the triangular base, and l is the length of each of the rectangular lateral faces.

The perimeter of the triangular prism is solved

A three-dimensional solid object called a prism has two identical ends. It consists of equal cross-sections, flat faces, and identical bases. Without bases, the prism's faces are parallelograms or rectangles.

The volume of a prism is the product of its base area and height

Volume of Prism = B x h

where B = base area of prism

h = height of prism

Given data ,

To find the perimeter of a triangular prism, you need to add the lengths of all the edges. The edges of a triangular prism include the three sides of the base triangle and three additional edges connecting the corresponding vertices of the two base triangles.

So, the formula for finding the perimeter of a triangular prism is:

Perimeter = (Sum of the lengths of the three sides of the base triangle) + (Sum of the lengths of the three edges connecting the corresponding vertices of the two base triangles)

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Step-by-step explanation:

Not much work to show really. It's 36% of 16, which is 5.76

Answer:

Step-by-step explanation:

You would need 100 ounces of apples to get 100% of your daily vitamin C.

We know that 8 ounces of apples contains 8% of your daily vitamin C.

To find out how many ounces of apples are needed to get 100% of your daily vitamin C, we can use the following proportion:

(8 ounces / 8%) = (x ounces / 100%)

where x represents the number of ounces needed for 100% of the daily vitamin C.

To solve for x, we can cross-multiply and divide:

8 ounces * 100% = 8% * x ounces

8 ounces * 100 = 8 * x ounces

800 = 8x

x = 100

Therefore, you would need 100 ounces of apples to get 100% of your daily vitamin C.

Original Equation:

[tex]\frac{3}{4} + x < \frac{1}{6}[/tex]

1) Subtract 3/4 from both sides:

[tex](\frac{3}{4}+x)-\frac{3}{4} < \frac{1}{6}-\frac{3}{4}[/tex]

2) Simplify:

[tex]x < \frac{1}{6}-\frac{3}{4}[/tex]

Find a common denominator for both fractions (I will use 12)

[tex]x < \frac{2}{12} -\frac{9}{12}[/tex]

Simplify:

[tex]x < \frac{-7}{12}[/tex]

We cannot simplify the expression anymore, therefore this is the answer!

The rule that describes the composition transformation that maps ABCD to A''B''C''D'' is;

''Translation of negative 6 units x, 1 units y composition reflection across the x-axis''.

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

The given coordinates of parallelogram ABCD are;

⇒ (3, 5), (6, 5), (4, 1), (1, 1)

The coordinates of the parallelogram A'B'C'D' are;

⇒ A'(3, -5), B'(6, -5), C'(4, -1), D(1, -1)

The coordinates of the parallelogram A''B''C''D'' are;

⇒ D(-5, 0), C''(-2, 0), A''(-3, -4), B''(0, -4)

The image of the point (x, y), following a reflection about the x-axis is the point (x, -y).

And, The difference in the coordinates of the parallelogram ABCD and A'B'C'D' is the change in the sign of the y-coordinates

Therefore, the transformation that gives the parallelogram A'B'C'D' from the parallelogram ABCD is a reflection about the x-axis

Thus, The difference between the coordinates of the vertices of the parallelogram A'B'C'D' and the parallelogram A''B''C''D'', is a change in the x-value by (-6), and a change in the y-value by (+1)

Therefore, the parallelogram A''B''C''D'' can be obtained from parallelogram A'B'C'D', by a translation of -6 units (left) in the x-direction and a translation of 1 unit, x in the y-direction.

Which gives;

The composition transformation that maps the pre-image ABCD to the final image A''B''C''D'', (given that in a composition transformation, the transformation to the right is done first) are; which is the option;

''Translation of negative 6 units x, 1 units y composition reflection across the x-axis''.

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The required simplified value of the given expression is given as 11/12x² + 7/15x - 1/3.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
Given expression,
= (11/12x-5/6) (x-2/5)
= 11/12x (x - 2/5) + 5/6 (x - 2/5)
= 11/12x² - 11/30x + 5/6x - 1/3
= 11/12x² + 7/15x - 1/3

Thus, the required simplified value of the given expression is given as 11/12x² + 7/15x - 1/3.

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Answer:

2.5

Step-by-step explanation:

The minimum is the smallest value taken by the function.

Ten percent of the 30 team members which means that  [tex]$\dfrac{10}{100} \cdot 30 = 3$[/tex]  team members are new to the team. So, the answer is 6 new team members. Option D is correct.

To understand how we got the answer, we need to understand the concept of "percentage". The percentage is a way of showing a number as a fraction of 100. So, 10% means  [tex]$\dfrac{10}{100}$[/tex].

Now, if we multiply this fraction by the total no. of team members, we'll find the no. of new team members.

[tex]$\dfrac{10}{100} \cdot 30 = 3$[/tex]

So, 10% of the 30 team members are equal to 3 team members, and that's why the answer is D-6.

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If $450.46 were invested at 2% interest that is compounded annually, it would be worth after 6 years.

The future value of a loan or investment may be determined using the formula FV = P*(1+R/N)(N*T), where FV is the future value, P is the original principal, R is the annual interest rate, N is the number of times interest is compounded annually, and T is the amount of time in years.

A = P(1+r/n)ⁿ

From the question, we have

P = $400

t = 6 year

r = 2%

r = 0.02

n = 1

A = P(1+r/n)ⁿ

A = 400(1+0.02/1)⁶

A = 400(1.02)⁶

A = $450.46.

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Answer:

Step-by-step explanation:

P = x

The Hawthorne Effect can be mitigated by utilizing research designs that obscure the presence of the researcher, such as randomized controlled trials and naturalistic observation studies.

It is often seen in studies involving health services research, where individuals being studied change their behavior due to the presence of the researcher, or the knowledge that they are being observed. This can have an impact on research objectivity, as the behavior of the subjects might not be representative of the behavior they would normally exhibit while not being observed.

The Hawthorne Effect can be mitigated by utilizing research designs that obscure the presence of the researcher, such as randomized controlled trials and naturalistic observation studies. Additionally, researchers can also use methods such as questionnaires and interviews to gain insight into the experiences and behavior of the research subjects, in order to better understand the impact that the Hawthorne Effect might have on the research results.

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Answer:6

Step-by-step explanation:

Maximum number of voters support renovation project is 44082.

Margin of error provides a clearer understanding of what a survey’s estimate of a population characteristic means.  it’s expressed with a plus and minus sign together, e.g. + or -1%.

A recent survey of 250 citizens showed that 56% favored a renovation project for the local library.

The survey had a margin of error of ±1.9%.

Total number of voters in the town = 78,717

56% of 78717= 44081.52 ⇒44082(rounded to nearest whole number)

Hence, maximum number of voters support renovation project is 44082.

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If 29 student tickets were sold, then all possible values for the number of adult tickets that the drama club must sell in order to meet the show's expenses are 54 and 55 .

the price for each student ticket is $4.50 and adult is $8 ;

The number of people auditorium can hold is = no more than 84 people ;

the number of children tickets sold is = 29 tickets ;

Let "x" be number of adult tickets sold.

The total revenue from ticket sales = $4.50×29 + $8×(x)

⇒ $130.5 + $8x.

The total revenue must be at least $560,

So , $130.5 + $8x ≥ $560.

Subtracting $130.5 from both sides, we get $8x ≥ $429.5   ;

Dividing both sides by 8, we get x ≥ 53.69    ;

Since the number of adult tickets sold must be an integer, the minimum number of adult tickets that must be sold is 54.

The maximum number of people allowed in the auditorium is 84, so the maximum number of adult tickets that can be sold is 84 - 29 = 55.

Therefore, the possible values for the number of adult tickets that must be sold are 54, 55.

The given question is incomplete , the complete question is

The drama club is selling tickets to their play to raise money for the show's expenses. Each student ticket sells for $4.50 and each adult ticket sells for $8. The auditorium can hold no more than 84 people. The drama club must make at least $560 from ticket sales to cover the show's costs. If 29 student tickets were sold, determine all possible values for the number of adult tickets that the drama club must sell in order to meet the show's expenses.

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The measure of value of x for the given set of parallel lines is found as:

x = 34.

From the definition of  alternate exterior angles:

3x + 1 = 103°

3x = 103 - 1

3x = 102

x = 34

Thus, the measure of value of x for the given set of parallel lines is found as: x = 34.

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The scalars 0 and any scalar with magnitude 0 satisfy the equation 4(2−5)(4,4) = 0 for every pair of vectors (4,4).

Vectors are mathematical objects that have both magnitude and direction. They can be multiplied by scalars, which are non-zero real numbers.

In this case, we are looking for non-zero scalars that satisfy the equation 4(2−5)(4,4)=0 for every pair of vectors (4,4).

To begin, we simplify the equation.

The expression 2−5 equals to -3, so

=> 4(-3)(4,4) = 4(-12,-12).

Next, we multiply 4 by -12 to get -48. The expression

=> 4(-12,-12) = (-48,-48).

Now, we need to find non-zero scalars that multiply (-48,-48) to give us a zero vector, which is a vector with magnitude of 0 and direction undefined.

Any scalar that satisfies this condition is a solution. For example, the scalar 0 satisfies this condition because

=> 0 * (-48,-48) = (0,0).

Additionally, any scalar with magnitude 0 will also satisfy this condition because the product of a vector and a scalar with magnitude 0 is always the zero vector.

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The stated combination of coins is not possible as the number of quarters are highly more than the number of dimes and nickels.

Let the number of dimes be x. So, the number of an nickels will be 2x. The number of quarters will be (30 - 3x). As per the known information, the one nickel is 0.05 dollars, one dime is 0.1 dollars and one quarter is with 0.25 dollars.

Now forming the expression -

x×0.1 + 2x×0.05 + (30-3x)×0.25 = 3

Performing multiplication on Left Hand Side of the equation

0.1x + 0.1x + 7.5 - 0.75x = 3

Performing addition on Left Hand Side of the equation

0.2x - 0.75x = 3 - 7.5

On subtraction we will find the value on Left Hand Side will be negative. Thus, the stated combination is not possible.

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The quarter mile grounding rule for rural electric utilities for direct-buried jacketed distribution cables says that they must have at least 4 grounds per mile.

A utility cooperative is a specific kind of cooperative that is responsible for providing its members with a public utility, such as power, water, or telecommunications. Profits are either distributed to members as "patronage" or "capital credits," which are dividends paid on a member's investment in the cooperative, or they are reinvested for infrastructure. 

Every consumer is a shareholder and a member of the company. This means that, in contrast to investor-owned utilities where the amount of individual authority is determined by the number of shares held, all members have the same level of personal authority. Many utility cooperatives operate their business in accordance with a set of ideals based on the Rochdale Principles, just like cooperatives active in other industries.

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The value of k = −8 for which AB = BA.

[tex]A = \left[\begin{array}{ccc}2&3\\-1&1\end{array}\right][/tex]

[tex]B = \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right][/tex]

Now,

[tex]AB = \left[\begin{array}{ccc}2&3\\-1&1\end{array}\right] \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right] = \left[\begin{array}{ccc}-7&18+3k\\2&-9-k\end{array}\right][/tex]

[tex]BA = \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right] \left[\begin{array}{ccc}2&3\\-1&-1\end{array}\right] = \left[\begin{array}{ccc}-7&-6\\-6-k&-9-k\end{array}\right][/tex]

Thus, in order for AB = BA, we must have that

[tex]\left[\begin{array}{ccc}-7&18+3k\\2&-9-k\end{array}\right] = \left[\begin{array}{ccc}-7&-6\\-6-k&-9-k\end{array}\right][/tex]

Equate the values, and we get

18 + 3k = -6

3k = -6 - 18

3k = -24

k = -8

and 2 = -6 - k

k = -6 - 2

k = -8

Therefore we can say that it is easy to see that these equations are satisfied if and only if k = −8, and thus k = −8 is the (unique) value for which AB = BA.

--The given question is incomplete; the complete question is

"Let [tex]A = \left[\begin{array}{ccc}2&3\\-1&1\end{array}\right][/tex] and [tex]B = \left[\begin{array}{ccc}1&9\\-3&k\end{array}\right][/tex]. What value(s) of k, if any, will make AB = BA?"--

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The mean and median number of times a face will appear are 100 and 99.5. The mean and median face value of the 600 rolls of the die are 96.2 and 94.5

a) Mean number of appearances of each face = [tex]\frac{107+120+84+110+92+87}{6}[/tex]

                                                                             = 100

Median number of appearances of each face = Average of middle two values when arranged in ascending order

Ascending order: 84, 87, 92, 107, 110, 120

Average of middle two values = [tex]\frac{92+107}{2}[/tex]

                                                  = 99.5

b) Mean and Median face values of the 600 rolls of the die:

Mean = [tex]\frac{107\times1+120\times2+84\times3+110\times4+92\times5+87\times6}{21}[/tex]

         = [tex]\frac{2021}{21}[/tex]

         = 96.2

Median = [tex]\frac{92\times5+107}{2}[/tex]

            = [tex]\frac{567}{6}[/tex]

            = 94.5

The question is incomplete. The complete question is

"The following represents the outcomes of rolling a die 600 times

Face       1      2     3     4     5     6

Number 107 120  84  110   92   87

a. What are the mean and median numbers of appearances of each face?

b. What are the mean and median face values of the 600 rolls of the die?"

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The angle of depression from the top of the cliff to the edge of the water

is 54.46°.

Trigonometric functions, often known as circular functions, are, in a nutshell, the functions of the angle of a triangle. This indicates that the relationship between a triangle's angles and sides is provided by these trig functions. The basic trigonometric functions are sine, cosine, tangent, cotangent, secant, and cosecant.

Given the height of the cliff = 70 feet,

the lake water reaches 50 ft away from the cliff.

distance from the base of the cliff to lake water = 50 feet

the angle of depression is found by tanФ

where Ф = angle of depression

tanФ = perpendicular/base

perpendicular = height = 70 feet

base= 50 feet

tanФ = 70/50

Ф = tan⁻¹(1.4)

Ф = 54.46°

Hence angle of depression is 54.46°.

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Absolute value of expression | 6 - 10 | can be simplified into 4.

The absolute value of a number is its distance from zero on the number line, regardless of its sign. It is represented by enclosing the number inside two vertical bars (| |) and is always a non-negative number.

In mathematical terms, the absolute value of x is defined as:

|x| =

a) x if x >= 0

b) -x if x < 0

So, for any number x, its absolute value is always positive or zero.

The expression |6 - 10| represents the absolute value of the difference between 6 and 10. To find the absolute value, we need to consider only the magnitude of the result and ignore its sign. In this case, the difference between 6 and 10 is -4, which is a negative number. Therefore, to find the absolute value, we need to take the absolute value of -4, which is 4. So, the simplified expression is:

|6 - 10| = 4

Hence the result for |6-10| is 4

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