Surface area help I am struggling

Surface Area Help I Am Struggling

Answers

Answer 1

Answer:

Total Surface Area: 65.97 cm²

Lateral Surface Area: 37.70 cm²

Step-by-step explanation:

You can solve for the surface area without the height or you can solve for the height and then find the surface are, either way is easy.

Lets first solve without the height. We will solve the surface area with the radius and slant height.

Total Surface area of cone formula: πr (r + s)

Curved surface are formula: πrs

Substitute the values in the picture with the formula

Slant height: 4

Radius: 3

πr (r + s)

π(3)(3 + 4)

(3.141593)(3)(3 + 4)

=9.424778(3 + 4)

=(9.424778)(7)

=65.973446

65.973446 rounded to the nearest hundredth is 65.97
TSA = Total Surface Area

TSA = 65.97 cm²

Now to find the curved surface area or some people call it the Lateral Surface Area

Formula: πrs

Radius: 3

Slant Height: 4

π(3)(4)

(3.141593)(3)(4)

=(9.424778)(4)

=37.699112

37.699112 to the nearest hundredth is 37.70

CSA = Curved Surface Area

CSA = 37.70 cm²

If you choose to compute the height (h) the you have to know both the radius (r) and the slant height (s):

Formula: height (h) = √s² - r²

Slant height = s = 4

Radius = r = 3

Height = h = ?

Now substitute the values into the formula

h = √s² - r²

h = √4² - 3²

h = √16 - 9

h = √7

h = 2.64575131

Height: 2.64575131 cm

Now it's time to find the surface area and curved surface area, now that you have the height:

Surface area formula given height and radius: πr(r + √(r² + h²))

Substitute the values

Height: 2.64575131
Radius: 3

πr(r + √(r² + h²))

π(3)(3 + √(3² + 2.64575131²))

TSA = (3.141593)(3)(3 + √(3² + 2.64575131²)

TSA = 9.424778(3 + √(3² + 2.64575131²)

TSA = 9.424778(3 + √(9 + 7)

TSA = 9.424778(3 + √(16)

TSA = 9.424778(3 + 4)

TSA = 9.424778(7)

TSA = 65.973446

TSA = 65.97

Next, time to find the Curved surface area:

Formula: CSA = πr√(r² + h²)

CSA = πr√(r² + h²)

Substitute the values into the formula

Radius: 3

Height: 2.64575131

Slant Height: 4

CSA  = πr√(r² + h²)

CSA = π(3)√(3² + 2.64575131²)

CSA = 9.424778√(3² + 2.64575131²)

CSA = 9.424778√(9 + 7)

CSA = 9.424778√(16)

CSA = 9.424778(4)

CSA = 37.699112

CSA = 37.70

So, we can conclude that the Total Surface Area is 65.97 and the Lateral Surface Area is 37.70.


Related Questions

Find a prime factorization or 36 and 45

Answers

Answer:

With exponents:

36 = 3² * 2²45 = 5 * 3²

Without exponents

36 = 3 * 3 * 2 * 245 = 5 * 3 * 3

Step-by-step explanation:

Factorization of 36:

363 * 123 * 3 * 43 * 3 * 2 * 23² * 2²

Factorization of 45:

455 * 95 * 3 * 35 * 3²

-Chetan K

Answer:

The Prime factorization of 36 and 45 is 3²

Solution :

36 = 2 × 2 × 3 × 3

= 2² × 3²

45 = 3 × 3 × 5

= 3² × 5

Prime Factorization = 3²

____________________

The perimeter of a rectangular roof shingle is 46 inches. It is 13 inches long. How wide is it?
inches
(Help please)

Answers

Answer:

8.5 in

Step-by-step explanation:

step 1

to find the width, the equation would be:

P/2-L

step 2-plug in

43/2-13=

8.5

Answer:

Step-by-step explanation: 10 + 10 = 20

46 - 20 = 26

26 divided by 2 = 13

Can I have some help?

But needs to be shown with work!

Answers

Answer:

9) y=(-6-3x)/2                 10) y=(2x+15)/3            11) y=8+4x

12) y=1/2x+6                   13) y= (8-3x)/-4            14) y= (10-6x)/-2

Step-by-step explanation:

The methods I used are known as float and ping, and escalator:

9) We can float the 3x to the other side to make

2y=-6-3x

We now escalate the 2 down to make:

y= [tex]\frac{-6-3x}{2}[/tex]

10) We simply escalate the 3 down to give:

y= [tex]\frac{2x+15}{3}[/tex]

11) We simply float the -4x to the other side:

y=8+4x

12) For this question, it will be better to expand the bracket first:

y-8=-1/2x-2

Now we float the -8 to the other side to give:

y=-1/2x-2+8

Which can be simplified to give:

y=1/2x+6

13) We simply float the 3x to the other side to give:

-4y=8-3x

Now we escalate the -4 down to give:

y= [tex]\frac{(8-3x)}{-4}[/tex]  
14) We float the 6x to the other side to give:

-2y=10-6x

Now we escalate the -2 down to give:

y= [tex]\frac{10-6x}{-2}[/tex]

Jeremy is building a birdhouse that is a scale model of his own house. If his house is 16 feet tall, and he wants to build his birdhouse 24 inches tall, what scale should he use?

Answers

Answer: 3:2 is the scale he should use

Step-by-step explanation: You simplify 24/16 by the GCF (greatest common factor) The GCF of 24 and 16 is 8 so [tex]\frac{24}{16}[/tex] ÷ [tex]\frac{8}{8}[/tex] = [tex]\frac{3}{2}[/tex]. 3/2 could also be written as a scale or ratio which is 3:2.

please help me find the lateral surface area of this

Answers

Answer:

96cm

Step-by-step explanation:

can you help me solve A=p+prt for R

Answers

Answer:

[tex]r=\frac{a-p}{pt}[/tex]

Step-by-step explanation:

Solve [tex]a=p+prt:[/tex]

[tex]r=\frac{a-p}{pt}[/tex]

find the radius of cylinder with a volume of 108pi ft3 and height of 12 ft​

Answers

The volume of a cylinder is the amount of space in it

The radius of the cylinder is 3 feet

How to calculate the radius

The volume of a cylinder is:

[tex]V = \pi r^2 h[/tex]

Where r represents the radius, and h represents the height

So, we have:

[tex]108\pi = \pi r^2 * 12[/tex]

Divide both sides by 12pi

[tex]9 = r^2[/tex]

Take the square roots of both sides

3 = r

Rewrite as:

r = 3

Hence, the radius of the cylinder is 3 feet

Read more about volume at:

https://brainly.com/question/10171109

Evaluate the expression for w = 3.1 and x = 13.7.
Write your answer as a decimal or whole number,

WX – 11

Answers

Answer:

31.47

Step-by-step explanation:

WX - 11

3.1 x 13.7 - 11

42.47 -11

=31.47

Hi!

I can help you with joy!

All we have to do here is plug in the numbers.

wx-11

(3.1)(13.7)-11

Multiply:

42.47-11

Subtract:

31.47 (Answer)

I hope this helps!

Ask me if you have any questions.

~Misty~

-[tex]\bf{Silent~[/tex]-

The probability that a particular salesman will leave his sunglasses behind in any store is 1/5. Suppose the salesman visits two stores in succession and leaves his sunglasses behind in one of them. What is the probability that the salesman left his sunglasses in the first store?

Answers

Probabilities are used to determine the chances of events

The probability that the salesman left his sunglasses in the first store is 0.16

How to calculate the probability

The given parameter is:

p = 1/5 ---- the probability that he left his sunglass

The probability that he did not leave his sunglass would be:

q= 1- 1/5

Evaluate the difference:

p = 4/5

So, the probability that the salesman left his sunglasses in the first store is:

Pr = 1/5 * 4/5

Evaluate the product

Pr = 4/25

Express as decimal

Pr = 0.16

Hence, the probability that the salesman left his sunglasses in the first store is 0.16

Read more about probabilities at:

https://brainly.com/question/25870256

In ∆ABC, if <A = 55° and <B = 65°, then = <C=​

Answers

<A+<B+<C=180(sum of triangle)

55+65+<C=180

120+<C=180

<C=60

Write a polynomial function of least degree with rational coefficients so that P(x)=0 has the given roots.
X=-1 X=7

Answers

Answer:

If P(x) has the roots -11 and 6, then its multipliers can be written as

Step-by-step explanation:

P(x)=(x+11)(x-6)

P(x)=x2-6x+11x-66

P(x) = x2+5x-66

help !! i will give brainliest

Answers

Answer:

The y intercept should be 9 and the graph is incorrect.

A right triangle is shown with a base of 6 cm and a height of 14 cm, what is the area in square cm of the right triangle

Answers

Answer:

42 square cm

Step-by-step explanation:

6 x 14 = 84. 84 divided by 2 = 42.

a = b x h divided by 2

help me with proofs please

Answers

Answer:

D. Subtraction Property of Equality

Step-by-step explanation:

D. Subtraction Property of Equality

From 6-7, you subtract 132 from both sides. You can only do this because of the subtraction property of equality which essentially means that if you subtract something from one side of the equation, you also have to subtract it from the other side. In this case, you subtract 132 from both sides, therefore it is D.

I WILL REPORT IF IT'S A LINK

Answers

Answer:

a) There will be approximately a water depth of 7.5 meters after 3h

b) Approximately 2.5 hours have passed when there is 8 m of water in the tank.

Step-by-step explanation:

a) Look for the y-value when the x-value is 3.

b) Look for the x-value when the y-value is 8.

*The y-axis is the depth (m), and the x-axis is the time (h).

A.(3,7) is a solution to the linear system.
B.(3,7) is Not a Solution to the linear system.

Answers

Answer:

y = 2x + 1 --> linear

y = -4x + 7 --> non-linear

Not a solution for a linear system.

Step-by-step explanation:

for (a), y = 2x+1, substitute the x and y values. keep in mind, that in a linear pair, (x, y). So, for the first equation you get:

7 = 2x3 + 1. This is correct, because 6 + 1 is 7. Therefore, (a) is linear.

for (b), we have to substitute our values again. You get:

7 = -4x3 + 7, which is

7 = -12+7, which is not true. So, (b) is not linear.

This means that for the linear pair (3, 7), it does not satisfy both equations, which means that it is not a solution for the linear system.

Finding angles , please help

Answers

Answer:

m∠C = 43.6°, m∠B = 107.4°, b = 51.2

Step-by-step explanation:

Use the law of sines:

a / sin ∠A = c / sin ∠C26 / sin 29° = 37 / sin ∠Csin ∠C = 37 sin 29° / 26sin ∠C = 0.6899m∠C = arcsin 0.6899m∠C = 43.6°

Find the missing angle:

m∠B = 180° - 29° - 43.6° = 107.4° (rounded)

Use the law of sines to find the length of b:

a / sin ∠A = b / sin ∠B26 / sin 29° = b / sin 107.4°b = 26 sin 107.4° / sin 29°b = 51.2 units (rounded)

Kiran’s backpack weighs 3 pounds less than Clare’s backpack. Clare’s backpack weighs 14 pounds. How much does Kiran’s backpack weigh? WHICH ANSWER IS CORRECT

x+3=14

3x=14

x=14−3

x=143

Answers

Answer:

[tex]x = 14 - 3[/tex]

Step-by-step explanation:

*The key word 'less than' means to subtract.

x + 3 = 14 is incorrect. Kiran isn't adding weight to his backpack.

In other words, the backpack didn't increase in pounds.

3(x) = 14 is incorrect. Multiplying is irrelevant to this problem, it's not saying Kiran's backpack is 3 times a number equal to Clare's backpack weight.

x = 143 is incorrect. This equation is unrealistic.

x = 14 - 3 is correct. This equation is explaining that Kiran's backpack is 3 pounds less than Clare's backpack (14)

pls help! solve for x

Answers

Answer:

21

Step-by-step explanation:

On the left side, 2 multiply by 3 is 6. So you can do the same thing to the right side. 7 multiply by 3 is 21.

Please I am begging!!!
A point on a pre-image is currently located at (1, -3). The pre-image is translated 3 units right and 6 units up.

What are the NEW coordinates for the point after the translation? Use graph paper to sketch the translation if needed.

A.) (3, 4)
B.) (4, 3)
C.) (7, 0)
D.) (-2, 2)

Answers

Answer:

4,3

Step-by-step explanation:

1 plus 3 equals 4.

-3 plus 6 equals 3.

Please I need help with this problem

Answers

Step-by-step explanation:

First problem looks right. Although he started with 145, not 25. Savings and checking combined is the total amount of cash he had before he started working, which is why it's added to the total amount of money he has.

He saves 55 every week. because the multiplier on w, which is weeks is 55. So for every week 55 is added to the multiplication. Ex 2 weeks is 110, 3 is 165, 4 is 220 etc..


He wanted a total of 650 usd. Doesn't matter where it is the total is what matters. Doesn't matetr if hes spending,  storing or even burning the money..
So first make 55w+145=650 then solve

Minus 145 from both sides

55w = 505

About 9 weeks one day and 6 hours. This is a rough estimate since the answer is 9.18181818 weeks.

29-{-36-(-27-31)+40}

Answers

Answer:

-33

Explanation:

29-(-36-(-27-31)+40)=

29-(-36-(-56)+40)=

29-(-36+58+40)=

29-62=-33

6) Find the area of each polygon

Answers

Let's find sides one by one

[tex]\\ \tt\hookrightarrow a^2=2^2+3^2=4+9=13\implies a=\sqrt{13}=3.2[/tex]

[tex]\\ \tt\hookrightarrow b=\sqrt{2^2+4^2}=\sqrt{20}=4.2[/tex]

[tex]\\ \tt\hookrightarrow x=\sqrt{1^2+4^2}=\sqrt{17}=4.1[/tex]

Now

[tex]\\ \tt\hookrightarrow s=\dfrac{4.2+4.1+3.2}{2}=5.7[/tex]

Apply herons formula

Area

[tex]\\ \tt\hookrightarrow \sqrt{5.7(5.7-3.2)(5.7-4.1)(5.7-4.2)}=\sqrt{5.7(2.5)(1.6)(1.5)}=5.84units^2[/tex]

11.94-6.99 divided by .55

Answers

We need to subtract -6.99 from 11.94. This gives us 4.95. Next, we need to divide by .55. This gives us 9.

The answer is 9.

if a hexagon is worth 5 and a triangle is worth 3, what is circle?

Answers

Answer:

A circle has a worth of 0. If your talking about the corners.

PLEASE HELP ME WITH THIS ASAP AND SHOW WORK PLEASE

Answers

Step-by-step explanation:

A: f(x)=8x-2

1. Switch the f(x) to y

y=8x-2

2. Switch y to x and x to y

x=8y-2

3. Solve for y:

------------------------------

1. Add 2 to both sides.

 x=8y-2

+2     +2

2. Divide both sides by 8.

x+2=8y

---     ---

8       8

1/8x+1/4=y

3. Write in f-inverse form

f^-1(x)=1/8x+1/4  

B: g(x)=2/3x+6

1. Switch the g(x) to y

y=2/3x+6

2. Switch y to x and x to y

x=2/3y+6

3. Solve for y:

------------------------------

1. Subtract 6 from both sides.

x=2/3y+6

-6        -6

2. Multiply both sides by 3/2 (to cancel out the 2/3)

x-6=2/3y

2/3x-4=y

3. Write in f-inverse form

g^1(x)=2/3x-4

C: h(x)-4x-12

1. Switch the h(x) to y

y=-4x-12

2. Switch y to x and x to y

x=-4y-12

3. Solve for y:

------------------------------

1. Add 12 to both sides.

x=-4y-12

+12    +12

2. Divide both sides by -4

x+12=-4y

------    ---

-4        -4

-1/4x-3=y

3. Write in h-inverse form

h^2(x)=-1/4/x-3

What value of y makes this true? 12+y>17

Answers

Answer:

5 if the value of y become 5 it makes this true

Hi! Let's solve this inequality!

Move 12 to the right side, using the opposite operation.

y>17-12

y>5

Thus, any value of y greater than 5 will make this inequality true.

Let's try 6, since 6 is greater than 5.

12+6>17

18>17

Yeah, it worked :)

Thus, any value of y greater than 5 will make this inequality true.

Hope it helps!

Enjoy your day!

Please feel free to ask if you have any doubts.

[tex]\bf{M^a^g^i^c^a^l[/tex]

Choose the correct simplification and demonstration of the closure property given: (3x3 2x2 − 5x) − (8x3 − 2x2). 5x3 2x2 5x; is a polynomial 5x3 2x2 5x; may or may not be a polynomial −5x3 4x2 − 5x; is a polynomial −5x3 4x2 − 5x; may or may not be a polynomial.

Answers

The resultant polynomial which is the correct simplification and demonstration of the closure property of give expression is,

[tex]-5x^3 +4x^2- 5x[/tex]

This resultant expression is polynomial.

What is polynomial?

Polynomial equations is the expression in which the highest power of the unknown variable is n (n is real number).

The given expression in the problem is,

[tex](3x^3 +2x^2 - 5x) - (8x^3 - 2x^2).[/tex]

Let the resultant polynomial of the above expression is f(x). Therefore,

[tex]f(x)=(3x^3 +2x^2 - 5x) - (8x^3 - 2x^2).[/tex]

To solve the above polynomial, open the bracket by multiplying the sign with inside values as,

[tex]3x^3 +2x^2 - 5x - 8x^3 +2x^2[/tex]

Separate the same power terms of the variables as,

[tex]f(x)=3x^3- 8x^3 +2x^2 +2x^2- 5x\\f(x)=-5x^3 +4x^2- 5x[/tex]

The resultant polynomial which is the correct simplification and demonstration of the closure property of give expression is,

[tex]-5x^3 +4x^2- 5x[/tex]

This resultant expression is polynomial.

Learn more about polynomial here;

https://brainly.com/question/24380382

:>) The senior class at Wildgrove High School is graduating. The number of students
receiving diplomas dictates the duration of the graduation ceremony.
)) s = the number of students receiving diplomas
d = the duration of the graduation ceremony
=
)) Which of the variables is independent and which is dependent?
1)
s is the independent variable and d is the dependent
variable
d is the independent variable and s is the dependent
variable
Submit

Answers

Answer:

s is the independent variable and d is the dependent variable.

Step-by-step explanation:

--------- :)

On the interval , at which x-value is the average rate of change 56?.

Answers

On the interval {x, 7} , the x-value at which the average rate of change is 56, is 4 and 7.

How to read the data from the table?

Table is a way to represent the data of the two or more variable.

To read the data from the table, look for the value of one variable, and get the resultant value of other variable from the corresponding block.

The table of the given x value is,

x          3,     4,     5,     6,     7

f(x)      12,   24,   28,   96,   192

The average rate of change of value is the ratio of overall change of function output value to the input value.

For the input values of 4 and 7 let's find the average rate of change,

[tex]r=\dfrac{192-24}{7-4}\\r=\dfrac{168}{3}\\r=56[/tex]

Hence, on the interval {x, 7} , the x-value at which the average rate of change is 56, is 4 and 7.

Learn more about the data table here;

https://brainly.com/question/15602982

Answer:

4

x-value is the average rate of change 56

Other Questions
II/ Rewrite the second sentence so that it keeps the same meaning as the root one. (Vit li cu th 2 sao cho ngha ging cu th nht. 1. Jack is a very good football player.Jack plays ________________________2. We saw nobody at the stadium.We didnt ________________________3. This town has two tennis courts.There____________________________4. He spent an hour playing the computer game.It _____________________________________5. She loves drinking coffee every morning.Her ___________________________________help gii h tui ci The process where DNA is copied is know as describe gandhis background and education The perimeter of parallelogram ABCD is 76 cm. AD is 5 cm more than twice AB. Find the lengths of all four sides of ABCD.What does side AB equal? Which is an example of the Earth's spheres interacting?SELECT ALL THAT APPLY! Find the area in square meters of a circular pond with a radius of 7 ft. Use 3.14 for , and round your answer to the nearest hundredth.(1 m 3.2808 ft) what are the positives to British imperialism in India True or false: A company that achieves differentiation parity at a lower cost has implemented a successful cost-leadership strategy. Which of the following CANNOT be revealed about a work of art through observation of stylistic characteristics?A. The artist who created it.B. The meaning of the work of art. C. The region in which it was created.D.The period during which it was made. In the Progressive Era, how and why did reformers seek to address the problems of industrial America A person invest 7500 dollars in a bank. The bank pays 6 interest compounded semi-annually. To the nearest tenth of a year,how long must the person leave the money in the bank until it reaches 10100 dollars? Voting Trend Data Analysis: Nationwide Voter Turnout for Presidential General Elections Analyze the voter turnout data in the tables for the presidential election years of 2016, 2012, 2008, and 2004. In two to three sentences, answer the following question: What are the national trends in overall voter turnout across the past four presidential elections? Be sure to note any major changes or lack of changes in voter participation as well as anything that seems to stand out. Use figures from the chart to support your response. what else is needed to prov these triangles congruent using the saa postulate What is a criticism of the two-party system?It impacts election outcomes by pulling voters from another candidate.It favors liberal over conservative ideologies.It is too polarizing and limits alternative viewpoints.It leads to spoiler candidates. write an equation in point-slope form of the line that passes through the point (2,0) with slope 1. 40 POINTS Solve the following system of equationsy = 2x2y=-3x - 1 To find solutions of equations should we look for x-intercepts or y-intercepts in a graph A school cafeteria surveys the students to see if there is demand for moregluten-free meal choices. The results are in the table.TotalEat gluten-free Not Interested infood gluten-free foodBuy lunch205070Pack lunchSO2070Total2020740The school decides to offer more gluten free options. Which of these reasonsis supported by the survey data?O A. Of the students who buy lunch, the yobability a student isinterested in gluten free food is greater than the probability astudent isnt interested in gluten free foodOB of the students who pack lunch the probability a student isInterested in gluten-free food is greater than the probability astudent is interested in gluten free foodO c The probability that a student is interested in gluten free food isgreater than the probability that he or she is not interested ingluten free foodThe probability that a student buys lunch is greater than theprobability that he or she packs lunch Which report is constructed immediately prior to preparing the financial statements with the purpose of demonstrating that the accounts balance?. [tex] \frac{1}{2} + \frac{1}{4} [/tex]can you please tell me how to do easy way can you please show me in numbers how to multiply