please help me solve this geometry proof i’ll mark brainliest

Answer:

see explanation

Step-by-step explanation:

(a)

to say [tex]\sqrt{32}[/tex] = 2[tex]\sqrt{16}[/tex]

is incorrect in that she has taken the 2 outside the radical, when

(b)

using the rule of radicals

[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab[/tex]

then

[tex]\sqrt{32}[/tex]

= [tex]\sqrt{2(16)}[/tex] ( note 2 remains inside the radical )

= [tex]\sqrt{2}[/tex] × [tex]\sqrt{16}[/tex]

= [tex]\sqrt{2}[/tex] × 4

= 4[tex]\sqrt{2}[/tex]

≈ 4 × 1.5

= 6

The dimensions of the box that will maximize the enclosed volume are l = √(45/2) m and h = (22.5 - l²)/2 m.

To determine the dimensions of the box that will maximize the enclosed volume if we have 45 m² of material to build a box with a square base and no top, we can use the following steps:

Step 1: Write the formula for the volume of the box.V = l²h

Step 2: Write the formula for the surface area of the box.S = 2l² + 4lh

Step 3: Substitute S = 45 m² and simplify.2l² + 4lh = 45 m²l² + 2lh = 22.5 m²h = (22.5 - l²)/2

Step 4: Substitute the value of h in the formula for the volume and simplify.V = l²[(22.5 - l²)/2]V = (22.5l² - l⁴)/2

Step 5: Take the derivative of V with respect to l.dV/dl = 45l - 2l³

Step 6: Set dV/dl = 0 and solve for l.45l - 2l³ = 0l(2l² - 45) = 0l = 0 or l = √(45/2)

Step 7: Determine if the critical point is a maximum or a minimum by taking the second derivative of V with respect to l.d²V/dl² = 45 - 6l²d²V/dl² > 0 for l = √(45/2)

Therefore, the dimensions of the box that will maximize the enclosed volume are l = √(45/2) m and h = (22.5 - l²)/2 m.

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The volume of the softball is estimated to be 9π, so the correct option is C.

We know that the softball is a sphere, and we know that the volume of a sphere of diameter D is given by the formula:

V = π(4/3)*(D/2)²

Where π = 3.14

Here we know that the diameter is 3.8 inches, then we can replace that in the formula above to get the volume.

V = π*(4/3)*(3.8in/2)²

V = 9π

So the correct option is C.

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Answer:

Step-by-step explanation:

the minimum mark the student should obtain is 32

Answer:

2

Step-by-step explanation:

The following factors work to reduce conflict and promote positive interaction between grieving couples who have lost a child by death is open and honest communication, expressing emotions in each other's company, and the ability of partners to reframe each other's behavior in a positive way. The correct option is B. 1, 2, and 4

When grieving couples lose a child due to death, it can lead to tension in their relationship, leading to conflicts between the couple. However, some factors work to reduce conflicts and promote positive interaction between grieving couples who have lost a child by death.

These factors include the following:

:Open and honest communication: Open communication is essential when it comes to expressing emotions, needs, and expectations from one another. It helps to build understanding, trust, and positive interaction between the couples. Honest communication provides room for clarification and better comprehension of each other's feelings and needs

Reframing each other's behavior in a positive way helps to build a healthy relationship and reduce conflicts.Crying separately to minimize the open grief and pain: Crying separately does not help reduce conflicts between the couple as it promotes distance and an unhealthy way of dealing with grief. It is important to grieve together and find support from each other to heal and move forward.

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Answer:

[tex]y = \frac{1}{7} x + 5[/tex]

Step-by-step explanation:

[tex]x - 7y = - 21[/tex]

[tex] - 7y = - x - 21[/tex]

[tex]y = \frac{1}{7} x + 3[/tex]

According to the question the enlarged design requires 450 feet of lights.

Design is the process of creating a plan or solution to a problem. It involves identifying users’ needs and creating a product, service, or system that meets those needs. Designers must consider how their solutions will function, how it will look, and how people will interact with it. Design thinking is a creative process that involves research, brainstorming, prototyping, and testing. Good design can improve user experience, increase engagement, and help businesses achieve their goals.

Let's assume the original design is X feet.
The enlarged design is 2X feet.
Therefore, the scale factor is 2.
The original design requires 225 feet of lights.
We can use the scale factor to calculate the amount of lights required for the enlarged design.
225 * 2 = 450 feet
Therefore, the enlarged design requires 450 feet of lights.

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Complete Question:

The value of the side of the triangles are;

18. 17. 89

19. y = 9. 43, x = 5. 67

Using the Pythagorean theorem stating that the square of the hypotenuse side is equal to the sum of the squares of the other two sides of a triangle.

From the diagram shown, we have;

21² = 11² + x²

find the squares

441 = 121 + x²

collect the like terms

x² = 320

Find the square root

x = 17. 89

To determine the value of y

sin 59 = y/11

y = 11 × 0. 8571

y = 9. 43

To determine the value of x

11² - 9. 43² = x²

x = √32.096

x = 5. 67

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Answer:

3.44 is the area of the shaded region between the square and circle

Area:

The size of a surface that can be calculated by multiplying the length by the width.

Area of square = [tex]x^{2}[/tex] , where 'x' is the side of square

Area of circle = π[tex]r^{2}[/tex] , where 'r' is the radius of circle

According to the given information:

Let the side of the square be 'A'

the radius of the circle intercepts the side of square equally

which gives us radius = A/2

so if radius is 2 , side of square will be 4

So the area of shaded region = Area of square - Area of circle

Area of shaded region = [tex]A^{2}[/tex] - π[tex][A/2]^{2}[/tex]

Area of shaded region = [tex]A^{2}[/tex]-π[tex]A^{2}[/tex]/4

Area of shaded region = [4[tex]A^{2}[/tex] - π[tex]A^{2}[/tex]]/4

Area of shaded region =[4*16 - 3.14*16]/4

Area of shaded region = 3.44[tex]unit^{2}[/tex]

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Answer:

The area of the shaded region is 3.4 square units, rounded to the nearest tenth.

Step-by-step explanation:

To calculate the area of the shaded region, we need to subtract the area of circle N from the area of the square JKLM.

The formula for the area of a circle with radius, r, is A = πr².

Given that circle N has a radius of 2 units, the area of circle N is:

[tex]\begin{aligned}\sf Area\;of\;circle\;N&=\pi \cdot 2^2\\&=4 \pi\\&=12.5663706... \; \sf square\;units \end{aligned}[/tex]

The diameter of a circle is the distance across the widest part of the circle, passing through the center, and is equal to twice the radius.

Therefore, the diameter of circle N is:

[tex]\begin{aligned}\sf Diameter\;of\;circle\;N&=2r\\&=2 \times 2\\&=4\; \sf units\end{aligned}[/tex]

The side length of square JKLM is equal to the diameter of circle N, since each side of the square is tangent to the circle.

Therefore, the side length of square JKLM is 4 units.

The formula for the area of a square with side length, s, is A = s².

Therefore:

[tex]\begin{aligned}\sf Area\;of\;square\;JKLM&=4^2\\&=4 \times 4\\&=16\; \sf square\;units\end{aligned}[/tex]

Finally, we can calculate the area of the shaded region:

[tex]\begin{aligned}\sf Area\;of\;shaded\;region&=\sf Area\;of\;square\;JKLM-Area\;of\;circle\;N\\&=16-12.5663706...\\&=3.4336293...\\&=3.4\;\sf square\;units\;(nearest\;tenth)\end{aligned}[/tex]

Therefore, the area of the shaded region is 3.4 square units, rounded to the nearest tenth.

Thus, the total length of lap covered to get the seven different obstacles is found as: 52 units.

the Pythagorean theorem is used to calculate the distance between two locations using the distance formula. The Pythagorean theorem can be rewritten as d = √((x2 - x1)²+(y2 - y1)²)  to calculate the separation between any two locations.

Given data:

Points on  y-axis and an x-axis are given,

M(-3,5), F(8,5), G(8,2), H(3,2), I(3,-5), J(-8,-5), K(-8,-2), and L(-3,-2).

Starting and ending point is F.

Points lies between the starting and ending are-

F ,G, H, I, J, K, L, M, F

Total length = sum of all length

d = √((x2 - x1)²+(y2 - y1)²)

FG =  √((8 - 8)²+(2 - 5)²)

FG =  √9

FG =  3

GH =  √((8 - 3)²+(2 - 2)²)

GH  =  √25

GH =  5

HI =  √((3 - 3)²+(2 + 5)²)

HI  =  √49

HI  =  7

IJ =  √((3 + 8)²+(-5 + 5)²)

IJ =  √121

IJ =  11

JK =  √((-8 + 8)²+(-2 - 5)²)

JK =  √9

JK =  3

KL =  √((-8 + 3)²+(-2 + 2)²)

KL =  √25

KL =  5

LM =  √((-3 + 3)²+(-2 - 5)²)

LM =  √49

LM =  7

MF =  √((8 + 3)²+(+5 - 5)²)

MF =  √121

MF =  11

Total length = 3 + 5 + 7 + 11 + 3 + 5 + 7 + 11

Total length = 52 units

Thus, the total length of the lap covered to get the seven different obstacles is found as: 52 units.

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Answer:

We know that there were three large tables with an equal number of guests seated at each table. Let's represent the number of guests at each of these large tables with the variable N.

So, the total number of guests seated at the large tables is 3N.

In addition to these guests, there were 7 late arriving guests seated at a smaller table.

Therefore, the total number of guests in all is:

3N + 7

We also know that the total number of guests in all is 37. So we can set up an equation to represent this:

3N + 7 = 37

Simplifying this equation, we get:

3N = 30

Dividing both sides by 3, we get:

N = 10

So, there were 10 guests seated at each of the 3 large tables.

Rounded to two decimal places, the value of the test statistic is 0.41.

The value of the test statistic to compare the publisher's reported percentage of 75% and the marketing executive's claim that the actual percentage is different can be found by using the formula z = (p1 - p2)/(sqrt[p*(1-p)*((1/n1)+(1/n2))]), where p is the pooled proportion, p1 is the proportion of the publisher's readers owning the particular make of car, p2 is the proportion of the random sample owning the particular make of car, n1 is the total number of the publisher's readers, and n2 is the total number of the random sample.

In this case, p = [tex](75% + 69%)/2 = 72%, p1 = 75%, p2 = 69%, n1[/tex]is unknown, n2 = 250. Thus, the test statistic is z =[tex](75%-69%)/(sqrt[72%(1-72%)((1/n1)+(1/250))]) = 0.41.[/tex]

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The first inequality -4 ≤ x ≤ 3 represents the values of x that fall between the two vertical lines, while the second inequality 1 ≤ y ≤ 6 represents the values of y that fall between the two horizontal lines.

An inequality is a mathematical statement that compares two quantities or expressions using inequality symbols such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "!=" (not equal to).

Inequalities can involve variables or constants, and can be expressed in one variable or multiple variables. The solution to an inequality is the set of values that satisfy the inequality.

For example, the inequality 2x + 3 > 7 is true for values of x that are greater than 2, since if we substitute x = 2, we get 2(2) + 3 = 7, which is not greater than 7. On the other hand, if we substitute x = 3, we get 2(3) + 3 = 9, which is greater than 7, so the inequality is true for x > 2.

Inequalities have many applications in mathematics and other fields, such as economics, physics, and engineering. They are used to represent constraints in optimization problems, to model relationships between variables, and to describe ranges of possible values for a quantity or variable.

To determine the double inequalities that define the shaded region, we need to find the equations of the two boundary lines that form the sides of the shaded region.

The two vertical lines are x=-4 and x=3. The two horizontal lines are y=1 and y=6.

The shaded region is enclosed by these four lines, so the double inequalities that define it are:

-4 ≤ x ≤ 3 and 1 ≤ y ≤ 6

The first inequality -4 ≤ x ≤ 3 represents the values of x that fall between the two vertical lines, while the second inequality 1 ≤ y ≤ 6 represents the values of y that fall between the two horizontal lines. Together, they define the rectangular shaded region with vertices (-4,1), (-4,6), (3,6), and (3,1).

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Answer:

Step-by-step explanation:

First, we need to calculate the annual interest rate from the given APR.

APR = 2.25%

Daily interest rate = 2.25% / 365 = 0.00616438

Now, we can use the formula for compound interest:

A = P(1 + r/n)^(nt)

Where:

A = the final amount

P = the principal (initial amount)

r = the annual interest rate (as a decimal)

n = the number of times the interest is compounded per year

t = time in years

In this case, P = $2,000, r = 0.00616438, n = 365 (daily compounding), and t = 4.

A = 2000(1 + 0.00616438/365)^(365*4)

A = 2000(1.00616438)^1460

A = $2,388.34 (rounded to the nearest cent)

Therefore, the answer is option D) $2,388.34.

ans- <CDF+<FDE=90(Being right angle)

or, 2x+x+9=90

or, 3x+9=90

or, 3x=90-9

or, 3x=81

or, x=81/3

:.x=27,,

The common difference of the arithmetic sequence is d = 3.

What is an Arithmetic sequence?

An arithmetic progression, also referred to as an arithmetic sequence, is a set of numbers where each term following the first is derived by adding a fixed constant number to the term before it.

To solve this problem, we can use the formula for the nth term of an arithmetic sequence. The formula is as follows:

an = a1 + (n - 1)d

Where an is the sequence's nth term, a1 is the first term, d is a common difference, and n is the number of terms we want to discover:

We know that a1 = 10 and a4 = 19. By entering these numbers into the formula, we obtain:

          a4 = a1 + (4 - 1)d

          19 = 10 + 3d

In order to find d, we can divide by 3 after subtracting 10 from both sides:

          9 = 3d

          d = 3

Therefore, the common difference of the arithmetic sequence is d = 3.

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A differential equation of the form dy/dt = ky, where y(t) is a function of time t, k is a constant, and c is a positive number.

This type of equation is known as a first-order linear differential equation and is commonly used to model exponential growth or decay processes, such as population growth, radioactive decay, or compound interest.

The general solution to this equation is y(t) = ce^(kt), where c represents the initial condition at time t = 0.

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Option a) The finding that the reputation of lawyers with the general public has declined because of advertising is NOT supported by several studies about lawyer advertising.

Lawyer advertising refers to advertising or soliciting the services of lawyers. It is designed to attract potential clients to retain their services. Lawyer advertising may involve a wide variety of mediums, including television, radio, print media, billboards, and the internet. Legal professionals may advertise their services on a wide range of platforms in order to reach as many people as possible.

According to several studies about lawyer advertising, the public considers the ads a valuable source of information. However, the public objects when advertising is invasive. The findings show that the negative effects of lawyer advertising on the reputation of lawyers with the general public are not supported by empirical data. In other words, the reputation of lawyers with the general public has not declined because of advertising.

The following are some of the other findings of several studies about lawyer advertising:

However, the public also perceives lawyer advertising as an attempt to lure them into hiring a lawyer. Lawyer advertising can increase public awareness about the availability of legal services, but it can also lead to unrealistic expectations regarding the outcome of legal disputes.

Hence option a) is correct.

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A and B are acute angles.

C and ZC are obtuse angles.

D and ZD are right angles.

A and B are acute angles (less than 90 degrees), and C and D are obtuse angles (greater than 90 degrees).

The measures of angles A, B, and ZA, ZB are less than 90 degrees, so they are acute angles.

The measure of angle C and angle ZC is greater than 90 degrees, so they are obtuse angles.

The measure of angle D and angle ZD is exactly 90 degrees, so they are right angles.

Therefore, the classification of the angles in the quadrilateral is:

A and B are acute angles.

C and ZC are obtuse angles.

D and ZD are right angles.

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Answer
Y. Answer:

y=30

Step-by-step explanation:

(3)^2 equals 9, so the first blank is 9.

You then multiply it by the 2, so second blank is 18.

18+15=33

33-3=30=y

Answer:

30

Step-by-step explanation:

first space should be 9 since 3² is 9

second space should be 18 since 2×9=18

final space should be 30 since 18+15 is 33-3=30

There are 2(24!) - 23! arrangements of the 26-letter alphabet that contain "the" or "of."

To find the number of arrangements of the 26-letter alphabet that contain "the" or "of," we can use the principle of inclusion-exclusion.

First, we find the total number of arrangements of the 26-letter alphabet, which is 26! (26 factorial).

Next, we find the number of arrangements that contain "the." To do this, we treat "the" as a single letter and arrange the remaining 24 letters along with it. Since there are 24 letters to arrange, the number of arrangements that contain "the" is 24! (24 factorial).

Similarly, we find the number of arrangements that contain "of" by treating it as a single letter and arranging the remaining 24 letters along with it. The number of arrangements that contain "of" is also 24!.

However, if we simply add the number of arrangements that contain "the" and "of," we will be double-counting the arrangements that contain both "the" and "of." To correct for this, we subtract the number of arrangements that contain both "the" and "of."

To find the number of arrangements that contain both "the" and "of," we treat "the of" as a single letter and arrange the remaining 23 letters along with it. Since there are 23 letters to arrange, the number of arrangements that contain both "the" and "of" is 23! (23 factorial).

Using the principle of inclusion-exclusion, the total number of arrangements that contain "the" or "of" is:

24! + 24! - 23! = 2(24!) - 23!

Therefore, there are 2(24!) - 23! arrangements of the 26-letter alphabet that contain "the" or "of."

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We can write the integral of f(x) as the sum of the integral of the even component, e(x), and the integral of the odd component, o(x). This gives us the following equation:  ∫f(x)dx = ∫e(x)dx + ∫o(x)dx

Integrals can be written as the sum of the integral of an odd function and the integral of an even function. This is because any function can be broken down into its even and odd components. Even functions are those that remain unchanged when reflected over the x-axis. This means that the result of evaluating the function for any x-value is the same as the result for its negative. Odd functions are those that change sign when reflected over the x-axis. This means that the result of evaluating the function for any x-value is the negative of the result for its negative.

The integral of an even function is the same regardless of whether it is written as the sum of the integral of an odd function and the integral of an even function, or if it is written just as an integral of the even function. The integral of an odd function is the negative of the integral of the even function when written as the sum of the two integrals.

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The bonus question asks for the application of the integral test to determine the convergence of the series given by 2n*e^(-a).

The integral test is a method used to determine the convergence or divergence of a series by comparing it to the integral of a related function. In this case, we are given the series 2n*e^(-a), and we can use the integral test because the terms of the series involve the variable 'n', and the function e^(-a) can be integrated.

To apply the integral test, we consider the integral of the function corresponding to the series. In this case, we integrate the function f(x) = 2x*e^(-a) from 1 to infinity. If this integral converges, then the series is also convergent. Conversely, if the integral diverges, then the series is divergent.

By evaluating the integral of f(x) and analyzing its convergence or divergence, we can determine whether the given series 2n*e^(-a) converges or diverges. Showing all the steps in evaluating the integral and discussing the convergence properties of the resulting integral will be necessary to receive full credit for this question.

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The probability that a randomly selected gas station in Russia charges more than the mean price in the United States is quite low.

This is because the prices of gas in Russia are typically much lower than the mean price of gas in the United States. The average cost of gasoline in Russia is around $0.50 per liter while in the United States, the average price of gas is around $1.78 per liter.

To explain further, the cost of living in Russia is lower than the cost of living in the United States. This means that there is more disposable income for people living in Russia and as a result, the price of gas is much lower than in the United States.

In addition, the cost of transportation and other production costs are lower in Russia than in the United States, which also keeps the prices of gas in Russia lower.

All of these factors make it unlikely that a randomly selected gas station in Russia would be charging more than the mean price in the United States.

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Amy is picking her fall term classes, including probability 101, 102, and 103 so,

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Mathematics has included probability to forecast the likelihood of certain events. The degree to which something is likely to happen is basically what probability means.

You will understand the potential outcomes for a random experiment using this fundamental theory of probability, which is also applied to the probability distribution.

a) the probability that she will get 101

P = [tex]\frac{^1C_1*^1^9C_2}{^2^0C_3}[/tex]

= 171/1140

P = 0.15

probability that she will get 101 = 0.15.

b) the probability that she will get 101 and 102.

P = [tex]\frac{1*1*18}{20!*3!(20-3)!}[/tex]

P = 18/1140

= 0.0158

probability that she will get probability 101 and probability 102 is 0.0158.

c) the probability she will get all three probability courses

P = [tex]\frac{^3C_3}{^2^0C_3}[/tex]

= 1/1140

P = 0.0009

The probability she will get all three probability courses is 0.0009.

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Complete question:

Amy is picking her fall term classes. She needs to fill three time slots, and there are 20 distinct courses to choose from, including probability 101, 102, and 103. She will pick her classes at random so that all outcomes are equally likely.

(a) What is the probability that she will get probability 101?

(b) What is the probability that she will get probability 101 and probability 102?

(c) What is the probability she will get all three probability courses?

In conclusion, the power series converges absolutely over an interval given by [tex]\left|x-7\right|>\frac{\left|a_n+1\right|}{\left|a_n\right|}\;\;\;\forall\;\;\;n\in\mathbb{N}\;\;\;\text{and}\;\;\;n>N, where N\in\mathbb{N}[/tex]is a natural number.

The interval over which the power series converges absolutely is given by [tex]\left|x-7\right|>\frac{\left|a_n+1\right|}{\left|a_n\right|}\;\;\;\forall\;\;\;n\in\mathbb{N}\;\;\;\text{and}\;\;\;n>N, where N\in\mathbb{N}[/tex] is a natural number.

In other words, for any given N, the series will converge absolutely over the interval \left|x-7\right|>\frac{\left|a_n+1\right|}{\left|a_n\right|}\;\;\;\forall\;\;\;n>N.

This means that the series will converge absolutely over a larger interval as N increases, since the terms \frac{\left|a_n+1\right|}{\left|a_n\right|} get closer to 1 for larger values of n.

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To maintain an average of 79, Aldo must obtain a score of 82 in his upcoming exam.

To get the solution, let's calculate the total of the first five scores.

Total of the first five scores = 77 + 88 + 77 + 87 + 63 = 392

Now we know that there are a total of six scores, so to get the mean, we will divide the total by six.

Mean = Total/Number of ScoresTherefore, 79 = 392 + x/6

We need to find the value of x that will satisfy the above equation.

Now we will solve for x.79 = 392 + x/6

(Multiply both sides by 6) 6 * 79 = 6 * 392 + x6 * 79 = 2352 + xx = 6 * 79 - 392x = 474 - 392x = 82

Therefore, Aldo needs to score 82 on his next test to achieve an average of 79.


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Answer: It is 160

Step-by-step explanation:

I just completed the test

Therefore , the solution of the given problem of surface area comes out to be the right response is option c 160 in².

Calculating how much space would be needed to fully cover the outside will reveal its overall size. The surroundings are considered when determining the same surface with a rectangular form. The surface area of something determines its overall dimensions. The amount of edges present in the space between a cuboid's four trapezoidal corners determines how much water it can hold inside.

Here,

the base's outermost boundary is:

=> Perimeter = 4s

To locate s,

=> Base  Area = s² = 64 in².

To solve for s, we obtain:

=> √(64 in²) = 8 in

We can now determine the perimeter:

=> perimeter: 4s

=> (4 * 8 inches)/(32 inches)

Finally, we can enter the numbers into the surface area formula as follows:

=>  Base Area + (1/2) x Perimeter x Slant Height

=> Surface Area Surface Area = 64 in² + (1/2) x 32 in x 6 in

=> Surface area = 64 in² + 96 in².

160 in² is the surface area.

Consequently, the cone has a surface area of 160 in².

The right response is (c) 160 in².

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