A rectangle is 4 feet longer than it is wide. If the area of the rectangle must be less than or equal to 672 square feet, find the possible values for the width .

On solving the derivatives we got - 6x5-15 , 4x² - 98x  , x-5)²-9,  -3x²-16x+9  , -2

Differentiation is the rate at which a function changes with regard to a variable in mathematics (in mathematics, the rate of change of a function with respect to a variable). The usage of derivatives is necessary while solving calculus and differential equation problems.

1. f(x) = 6x5-15 DERIVATIVE

2.f(x) = 4x² - 98x DERIVATIVE

3. f(x) = (x-5)²-9

4.f(x)= -3x²-16x+9 DERIVATIVE

5.f(x)=-2 DERIVATIVE

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Answer:

Step-by-step explanation:

the answer to the problem is 6 KILA watts

Important Formula:

[tex]p=\dfrac{w}{t}[/tex]

Where p is power(measured in watts), w is work(measured in joules), and t is time(measured in seconds).

[tex]w=60,000J[/tex]

[tex]t=10s[/tex]

[tex]p=?[/tex]

____________

[tex]p=\dfrac{w}{t}[/tex]

____________

[tex]p=\dfrac{60,000}{10}[/tex]

____________

[tex]\fbox{p = 6,000 watts}[/tex]

Therefore the constraints for this problem is the amount of flour used must equal the amount of flour available and the amount of sugar used must equal the amount of sugar available.

When variables are employed in equations to simulate real-world scenarios, constraints must be applied to set limits and bounds on those variables. It's possible that some answers, while theoretically proving an equation correct, may not make sense in the context of a real-world word problem.

Here,

The following resource limitations apply to this issue: -

The amount of flour used must equal the amount of flour available.

The amount of sugar used must equal the amount of sugar available.

Explanation : As the flour is limited therefore the amount of flour used will become a constraint for this problem and similarly the amount of sugar available will become a constraint to amount of sugar used.

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The relation between these three variables is demonstrated by

the formula for Ohm's Law: E = (I)(Z) is 12i.

What is Ohm's Law?

According to Ohm's law, the resistance of the circuit and the current or energy travelling through the resistance are both exactly proportional to the voltage or potential difference between two places. V=IR is the equation for Ohm's law.According to Ohm's Law, assuming the temperature and other physical parameters don't vary, the current flowing through a conductor is precisely proportional to the potential difference applied across its ends. Through a resistor, current is inversely proportional to the voltage difference.

(3+3 i)(2+2 i)

Apply complex arithmetic rule: (a+b i)(c+d i)=(a c-b d)+(a d+b c) i

=(3 .2-3. 2)+(3 .2+3 . 2) i

Simplify [tex]$(3 \cdot 2-3 \cdot 2)+(3 \cdot 2+3 \cdot 2) i: \quad 12 i$[/tex]

[tex]$=12 i$[/tex]

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optimal solution is arrived with value of variables as :

x1=0.9091,x2=1.8182,x3=0,x4=0,x5=0,x6=0

minimize cost:

z=2x₁+3x₂+5x₃+6x₄+8x₅+8x₆=2x

subject to:

20x₁+30x₂+40x₃+40x₄+45x₅+30x₆ ≥70 : amount of protein

50x₁+30x₂+20x₃+25x₄+50x₅+20x₆ ≥100 : amount of carbohydrate

4x₁+9x₂+11x₃+10x₄+9x₅+10x₆ ≥20 : amount of fat

where x₁, x₂, x₃, x₄, x₅, x₆ are units of 6 foods

solution using Simplex method:

After introducing artificial variables:

Min Z=2x₁+3x₂+5x₃+6x₄+8x₅+8x₆+0S₁+0S₂+0S₃+MA₁+MA₂+MA₃

subject to

20x₁+30x₂+40x₃+40x₄+45x₅+30x₆-S₁+A₁ ≥ 70

50x₁+30x₂+20x₃+25x₄+50x₅+20x₆-S₂+A₂≥ 100

4x₁+9x₂+11x₃+10x₄+9x₅+10x₆-S₃+A₃=20

and x₁,x₂,x₃,x₄,x₅,x₆,A₁,A₂,A₃≥0

Refer to the image for Z

Since all Zj-Cj≤0

Hence, optimal solution is arrived with value of variables as :

x1=0.9091,x2=1.8182,x3=0,x4=0,x5=0,x6=0

Min Z=7.2727

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The solution to the differential equation subject to the given initial condition is  log P = 0.07t + log(30)

Differential equation in which the variables can be separated from one from one another are called separable differential equations

A general form to write a separable differential equation is

dy/dx = f(x)g(y)

where the variable x and y can be separated from each other

According to the question,

We have to solve dP/dt=0.07P by using separation of variable

=> dP/dt=0.07P

Dividing P both sides and multiplying dt

=> dP / P = 0.07 dt

Now Integrating both the sides

=> [tex]\int\limits {\frac{1}{P} \, dP = \int\limits {0.07} \, dt[/tex]

=> log P = 0.07t + c ------(1)

It is given that  P(0)=30

which means at t = 0 , the value of P = 30

Substituting t = 0 and P = 30

log(30) = 0 + c

=> c = log(30)

Substituting the value of c back to equation (1)

log P = 0.07t + log(30)

=> log(P / 30) = 0.07t is our solution

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When an equation's discriminant is zero, the following is the given statement that is correct: There is just one viable solution.

Having the form ax2 + bx + c = 0, quadratic equations are second-degree algebraic expressions. The name "Quadratic" is derived from the word "Quad" which means square. A quadratic equation is an "equation of degree 2," to put it another way. A quadratic equation is employed in numerous situations.

There are a maximum of two solutions for x in the second-degree quadratic equations. These two solutions for x are denoted as (α, β) and are also known as the roots of quadratic equations.

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Therefore, the example of the polynomial function f(x)=[tex]x^{2} +x^{4} +x^{6}[/tex] is even and the polynomial function f(x)=[tex]x+x^{3} +x^{5}[/tex] is odd

A mathematical function from one set X to another gives each element of X exactly one element of the other. The sets X and Y, respectively, represent the function's domain and codomain.

Here,

The polynomial function f(x)=[tex]x^{2} +x^{4} +x^{6}[/tex] is even.

The polynomial function f(x)=[tex]x+x^{3} +x^{5}[/tex] is odd

As we can see,

The function

f(x)=[tex]x^{2} +x^{4} +x^{6}[/tex]

when we put

f(-x)=[tex](-x)^{2} +(-x)^{4} +(-x)^{6}[/tex]

f(-x)=[tex]x^{2} +x^{4} +x^{6}[/tex]

Thus f(x)=f(-x)

Therefore it is even.

The function

f(x)=[tex]x+x^{3} +x^{5}[/tex]

f(-x)=[tex](-x)+(-x)^{3} +(-x)^{5}[/tex]

f(-x)=[tex]-x-x^{3} -x^{5}[/tex]

Thus f(x)≠f(-x)

Therefore it is odd.

Therefore, the example of the polynomial function f(x)=[tex]x^{2} +x^{4} +x^{6}[/tex] is even and the polynomial function f(x)=[tex]x+x^{3} +x^{5}[/tex] is odd

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The value of R is 2.5 or (5/2) . We can find the answer by using concepts of slope of line.

What is the slope of a line?

Slope of a line measures its steepness . Mathematically, its calculated as "rise over run".

When two points are given,

Slope of a line = (y2 - y1)/(x2 - x1)  

Here, y2 = R

          y1 = 1

         x2 = 7

          x1 = 9

Slope of a line = (R-1)/(7-9)

In the que, its given slope  = -3/4

So, (R-1)/(-2) = -3/4

      R = 5/2 or 2.5

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a) The estimate of the proportion of defectives when the process is in control is 0.054

b) The standard error of the proportion if the sample size is 100 is 0.0226.

c) The upper control limit is 0.1218 and the lower control limit is 0 (since LCL < 0 and p > 0, we can write LCL = 0).

1) The estimate of the proportion of success is

p = (number of success)/(total number of samples)

I.e., p = x/N

2) The standard deviation of the proportion of success is

[tex]\sigma_p = \sqrt{\frac{p(1-p)}{n} }[/tex]

3) The upper and lower control limits for a control chart are:

L.C.L = p - 3[tex]\sigma_p[/tex]

and U.C.L = p + 3[tex]\sigma_p[/tex]

It is given that, there are 25 samples of 100 items each.

So, the total number of items i.e., the total sample size,

N = 25 × 100 = 2500

In 25 samples, a total of 135 items were found to be defective.

So, the number of defectives x = 135

a) The estimate of the proportion of defectives is p = x/N

On substituting, we get

p = 135/2500 = 0.054

b) The standard error of the proportion if the sample of size 100 is calculated by

[tex]\sigma_p = \sqrt{\frac{p(1-p)}{n} }[/tex]

On substituting p = 0.054 and  n = 100, we get

[tex]\sigma_p = \sqrt{\frac{0.054(1-0.54)}{100} }[/tex]

    = 0.0226

c) The control limits for the control chart are:

Upper control limit =  p + 3[tex]\sigma_p[/tex]

⇒ U.C.L = 0.054 + 3(0.0226) = 0.054 + 0.0678 = 0.1218

Lower control limit = p - 3[tex]\sigma_p[/tex]

⇒ L.C.L = 0.054 - 3(0.0226) = 0.054 - 0.0678 = - 0.0138 ≈ 0

(Since we know that the lower control limit should not be a negative value, it is made equal to 0).

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CASE1: If target is equal to middle, then return mid.

CASE2:If target is less than middle i.e., target<A[mid],we discard all the elements in the right search space including mid element. Now our new high would be mid-1 while 'low' remains as it is.

CASE3:If the target element is greater than middle i.e., target>A[mid],we discard all the elements in the left search space including mid element. Now our new low would be mid+1 while 'high' remains as it is.

Recursive algorithm, a function calls itself again and again till the base condition(stopping condition) is satisfied.

Let us track the search space by using two index start and end. Initialy low=0 and high=n-1(as initialy whole array is search space).At each step, we find mid value in the search space and compare it with target value. There are three cases possible:

CASE1: If target is equal to middle, then return mid.

CASE2:If target is less than middle i.e., target<A[mid],we discard all the elements in the right search space including mid element. Now our new high would be mid-1 while 'low' remains as it is.

CASE3:If the target element is greater than middle i.e., target>A[mid],we discard all the elements in the left search space including mid element. Now our new low would be mid+1 while 'high' remains as it is.

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The theorem use to find the base angles of the triangle ABE is base angle theorem.

An isosceles triangle is a triangle that consists of two equal sides, two equal angles, three edges, three vertices and the sum of internal angles of a triangle equal to 180 degrees.

According to the triangle ABE, the side AB and EB are congruent. This makes the triangle ABE an isosceles triangle.

AB ≅ BE

Therefore, the base angles are congruent.

The base angles theorem states that If two sides of a triangle are congruent, then the angles opposite them are congruent.

Therefore,

∠A ≅ ∠BEA by base angle theorem.

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It is false that the range of the sine function is 0 ≤ ∅ ≤ π

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

Function: sine function

Also from the question, we have

Range: 0 ≤ ∅ ≤ π

As a general rule, we have:

This means that the range of the sine function is from [-1, 1].

This can also be represented as -1 ≤ ∅ ≤ 1

Hence. the given statement about the sine function is false

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Answer:

The answer is false.

Step-by-step explanation:

The range of the sine function is NOT 0 ≤ ∅ ≤ π

The option C, “because 0 is in this interval, we cannot conclude that there is a difference in newspaper reading, on average, for females and males” is correct.

In the given question, the UGA Journalism Department is interesting in determining if there is a significant difference in the number of hours, on average per week, that UGA males and UGA female students spend reading any online or printed newspaper.

Randomly selected students at UGA were asked how many hours per week they read any online or printed newspaper, their age, and gender. The 95% confidence interval for reading newspapers on μ(F)-μ(M) is (-1.1, 1.3).

1) We have to interpret this confidence interval. The given options are:

• Because 0 is not in this interval, we cannot conclude that there is a difference in newspaper reading, on average, for females and males.

• Because 0 is not in this interval, we can conclude that there is a difference in newspaper reading, on average, for females and males.

• Because 0 is in this interval, we cannot conclude that there is a difference in newspaper reading, on average, for females and males.

• Because 0 is in this interval, we can conclude that there is a difference in newspaper reading, on average, for females and males.

Since there interval was given.

The given interval for the 95% confidence interval for reading newspapers on μ(F)-μ(M) is (-1.1, 1.3).

Since the value of interval is between -1.1 and 1.3. So 0 is in this interval. So we cannot conclude that there is a difference in newspaper reading, on average, for females and male.

So the option C, “because 0 is in this interval, we cannot conclude that there is a difference in newspaper reading, on average, for females and males” is correct.

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The correct value of answer is B. $9100.The interest on the loan is 5% of the principal. So, the interest amount is:= $350

To calculate the total amount Callie has to pay back at the end of the loan, we need to add the principal amount (the original loan amount) and the interest accrued over the six-year period.

The interest can be calculated using the formula: Interest = Principal * Rate * TimeHere, the principal amount is $7000, the interest rate is 5% (or 0.05 as a decimal), and the time is 6 years.

Interest = $7000 * 0.05 * 6 = $2100

Adding the interest to the principal, the total amount Callie has to pay back is:

Total amount = Principal + Interest = $7000 + $2100 = $9100

Therefore, the correct answer is B. $9100.

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Work done by the vector is 11π/16.

We know that,

the given closed curve in the plane is,

F(x,y) = [tex](\frac{x^{2}y }{4} + \frac{y^{3} }{3} )[/tex] i+xj

Suppose C be a simple smooth closed curve in the plane. It is also oriented counterclockwise.

Let S be the interior of C.

Let P = [tex]\frac{x^{2}y }{4} +\frac{y^{3} }{3}[/tex] and Q = x

so the partial differentiation is,

[tex]\frac{dP}{dy} = \frac{x^{2} }{4} + y^{2}[/tex]  and  [tex]\frac{dQ}{dx}[/tex] = 1

By the Green's theorem work done by F is given as,

W = ∫ F dr

W = ∫∫ ( [tex]\frac{dQ}{dx} - \frac{dP}{dy}[/tex] )dxdy

W = ∫∫ [tex](1 - \frac{x^{2} }{y} -y^{2} )dxdy[/tex]

Let C = x² + y² = 1

and x = rcosθ, y = rsinθ ;

0 ≤ r ≤ 1; 0 ≤ θ ≤ 2π

Therefore

W = ∫∫ (1 - r²cos²θ/4 - r²sin²θ) [tex]|\frac{d(x,y)}{dr,0} |[/tex] dθdr

and d(x,y)/d(r,θ) = [cosθ  -rsinθ; sinθ  rcosθ] = r

Thus

W = ∫∫ (1 - r²cos²θ/4 - r²sin²θ)rdθdr

after solving we get,

W = 11π/16.

Hence the work done along with the vector is 11π/16.

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The correct answer to how many different ways he can draw is 24.

The three options that describe the in-center of the given triangle are;

B. Point A is the center of the circle that passes through points X, Y, and Z.

C. ZA ≅ YA

E. AX ≅ AY

The incenter of a triangle is defined as the point of intersection point of all the three interior angle bisectors of the given triangle. This means that, it can also be said to be the point where all the internal angle bisectors of the triangle cross each other.

Now, we are told that Point A is the incenter of triangle DEF. From the definition above, we can deduce that;

An inscribed circle can be drawn with center A passing through points X, Y and Z.

Similarly, since it passes through X, Y and Z, then it means that ZA≅YA, AX≅AY.

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The chocolate bar costs 9 cents. The little girl is missing 10 cents and the little boy is missing 1 cent, so together they are missing 11 cents.

Cost is a monetary measure of the amount of resources, such as time or money, that must be expended to produce a product or service. It is a fundamental factor of economic production, as it is necessary to make products and services available to consumers. Cost can be determined in a variety of ways and can be linked to economic theory through the concept of opportunity cost. In business, cost is a major factor in decisions related to production, pricing, and marketing. Cost is also a factor in accounting and budgeting, as it is necessary to track and report the costs of organizational operations.

The chocolate bar costs 9 cents. The little girl is missing 10 cents and the little boy is missing 1 cent, so together they are missing 11 cents. If the chocolate bar cost 9 cents, that would leave 1 cent for them to split.

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Yes, it is possible for two sets of data to have the same regression equation but different correlations.

Correlation quantifies the strength of the linear relationship between a pair of variables, whereas regression expresses the relationship in the form of an equation.

The use of correlation analysis allows for the quantification of relationships between two continuous variables, such as those between two independent variables or between a dependent and independent variable.

Regression analysis is the process of determining how one or more variables and the outcome variable relate to one another. Risk factors, co-founders, and the outcome variable are all referred to as predictors or independent variables. The outcome variable is also referred to as the dependent or response variable. Regression analysis displays the dependent variable as "y" and the independent variables as "x".

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The absolute maximum and absolute minimum of f(x,y) = 3 + xy -x - 2y is f(0,0) and f(1,1) respectively.

The absolute maximum point is a point where the function obtains its greatest possible value.

And Absolute minimum is a point where the function obtains its least possible value. This is the smallest value that a mathematical function can have over its entire curve.

Given equation is, f(x,y) = 3 + xy - x - 2y

we will check absolute maximum and absolute minimum of f(x,y) at the points (0,0), (1,0), (1,1).  

f(0,0) = 3 + (0)(0) - 0 - 2(0) = 3

f(1,0) = 3 + (1)(0) - 1 - 2 (0) = 2

f(1,1) = 3 + (1)(1) - 1 - 2(1) = 1

Therefore we get absolute maximum at f(0,0) and absolute minimum at f(1,1).

An absolute minimum also called a global minimum, occurs when a point of the function is lower any other point on the function within the function's domain. A local minimum also called relative minimum occurs when a point is lower than the points surrounding it.

Given question is incomplete. Complete question is:

find the absolute maximum and absolute minimum of f (x, y) = 3 + xy - x -2y  among points in the triangle with vertices (0, 0), (1, 0), and (1, 1).

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The probability that a corn crop has either an ear worm infestation, a corn borer infestation, or both is 0.27.

What is probability?

The area of mathematics known as probability deals with numerical descriptions of how likely it is for an event to happen or for a proposition to be true. A number between 0 and 1 is the probability of an event, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes its certainty.

We have to find the probability that a corn crop has either an ear worm infestation, a corn borer infestation, or both.

Since,

P(E or B) = P(E) + P(B) - P(E and B)

Given,

P(E) = 0.24

P(B) = 0.16

P(E and B) = 0.13

Hence,

P(E or B) = 0.24 + 0.16 - 013

P(E or B) = 0.27

Option D is correct.

Hence, the probability that a corn crop has either an ear worm infestation, a corn borer infestation, or both is 0.27.

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Answer:

Step-by-step explanation:

dudjdjd

The statement nine more than the product of 5 times the number of tires t can be written as, 9 + 5t, so option A is correct.

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement.

Given statement:

nine more than the product of 5 times the number of tires t

The above statement can be written as

= 9 + 5 × t

= 9 + 5t

Therefore, the statement nine more than the product of 5 times the number of tires t can be written as, 9 + 5t.

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The product of the vectors v and w is gotten as; v ⋅ w = 22

We are given the vectors;

r = <8, 8, -6>

v = <3, -8, -3>

w = <-4, -2, -6>

We want to evaluate v.w which is a product of both vectors.

The formula will be;

v.w = (v_x * w_x) + (v_y * w_y) + (v_z * w_z)

Plugging in the values and solving gives;

v.w = (3 * -4) + (-8 * -2) + (-3 * -6)

v.w = -12 + 16 + 18

v.w = 22

We can conclude that the vector expressions has a product of 22

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The number of tiles in the bag of 10 that are yellow in colour are; 5 tiles

We are given;

Total number of tiles in bag = 10 tiles

Now, we are told that in the bag, the tiles are either blue, green, red, or yellow.

Now, after selecting a tile, we are told that it is put back and as such we have after 100 selections that we have 24 blue tiles, 12 green tiles and 12 red tiles. Thus;

Number that will be yellow = 100 - 24 - 12 - 12 = 52 yellow tiles

Thus, it means that the probability of selecting a yellow tile is;

52/100

Thus, number of tiles out of the 10 in the bag that are yellow =

(52/100) * 10 = 5.2

Approximately 5 yellow tiles

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Complete question is;

How many yellow tiles are most likely in the bag? Enter the answer in the box. A tile is randomly selected from a bag that contains 10 tiles. The tiles are either blue, green, red, or yellow. After the color is recorded, the tile is placed back in the bag. A tile is pulled 100 times, of which 24 are blue tiles, 12 are green tiles, and 12 are red tiles.​

The solution to the system of linear equations by substitution is (1, 5)

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

-3x+y=2

-x+y-4=0

Rewrite as

-3x + y = 2

-x + y - 4 = 0

Make y the subject in -x + y - 4 = 0

So, we have

y = x + 4

Substitute y = x + 4 in -3x + y = 2

-3x + x + 4 = 2

Evaluate the like terms

-2x = -2

So, we have

x = 1

Substitute x = 1 in y = x + 4

y = 1 + 4

Evaluate

y = 5

Hence, the solution is  x = 1 and y = 5

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Answer:

Step-by-step explanation:

I forgot to add the last reason is AAS (two angles one side are congruent = triangles are congruent)

S.

1.Given

2. AE = EC

3. <AEB = <CED

4. <CDE = <ABE

5. triangles congruent

R.

1. Given

2. Segment bisector theorem

3. Vertical angles theorem

4. PAI Theorem

Hope this helps!