What is the surface area of the cylinder with height 8 cm and radius 2 cm? Round your answer to the nearest thousandth.

What Is The Surface Area Of The Cylinder With Height 8 Cm And Radius 2 Cm? Round Your Answer To The Nearest

Answers

Answer 1

Answer:

SA = 125.664 cm²

General Formulas and Concepts:

Symbols

π (pi) ≈ 3.14

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Surface Area of a Cylinder Formula: SA = 2πrh + 2πr²

r is radiush is height

Step-by-step explanation:

Step 1: Define

Identify variables

r = 2 cm

h = 8 cm

Step 2: Find SA

Substitute in variables [Surface Area of a Cylinder Formula]:                       SA = 2π(2 cm)(8 cm) + 2π(2 cm)²Evaluate exponents:                                                                                         SA = 2π(2 cm)(8 cm) + 2π(4 cm²)Multiply:                                                                                                             SA = 32π cm² + 8π cm²Add:                                                                                                                   SA = 40π cm²Evaluate:                                                                                                           SA = 125.664 cm²

Related Questions

Diana averages 6 mph walking
to school. Averaging 35 mph on
the way back home by car, she
takes 3 hour less time.
How far is the school
from her home?

Answers

Answer:

Distance between school and home = 105 miles.

Step-by-step explanation:

Let distance = D miles

Time to take walking/jogging, t1 = D/6 hours

Time by car, t2 = D/35 hours

Average time, t

= (t1+t2)/2

= D(1/6+1/35)

= (D/210)(35+6)

=41D/210 hours

Given t = t1-3 hours

41D/210 - D/6 = 3

Solve for D

41D/210 - 35D/210 = 3

(41-35)D/210 = 3

6D/210 = 3

D = 3*210/6 = 105 miles.

(Appreciate very much Diana's efforts to walk/job 105 miles to school, and we understand how lucky we are in most of Europe and North America)

Find the measure of the missing angle

Answer: a=

Answers

Answer:

Hello! answer: 49

Step-by-step explanation:

This is a complementary angle meaning it will add up to 90 degrees so...

90 - 41 = 49 therefore a = 49 hope that helps!

Answer:

Step-by-step explanation:

anfle a+41 degree=90 degree(being perpendicular)

angle a=90-41

angle a=49

Solve the following equation by completing the square. 4x2 – 160 + 8 = 0

Answers

I’ll get you some help, give me on second

A lawn sprinkler waters Kara's yard in a circular motion. The
lawn sprinkler can water grass within a 7 foot radius. What is
the area of the yard that is watered by the sprinkler?

A. 43.98 ft
B. 87.96 ft
C. 153.94 ft
D. 615.75 ft

NEED HELP ASAP PLEASE, check the picture

Answers

Answer:

option A

is the correct answer

Step-by-step explanation:

Wet grass forms a circular region of radius r=7 m.

∴ Length of the outer edge of wet grass(Perimeter) =2πr=2×

7

22

×7 m=44 m.

someone help please !

Answers

Answer:

x = 11.5

Step-by-step explanation:

using pythagoras theorem

a^2 + b^2 = c^2

x^2 + 8^2 = 14^2

x^2 + 64 = 196

x^2 = 196 - 64

x^2 = 132

x = [tex]\sqrt{132}[/tex]

x = [tex]2\sqrt{33}[/tex]

x = 11.5

Answer:

11.5

Step-by-step explanation:

Use the pythagorean theorem.

a^2 + b^2 = c^2

8^2 + b^2 = 14^2

64 + b^2 = 196

-64             -64

(radical) b^2 = (radical) 132

b = 11.5

Please someone help me. Thank you.​

Answers

Answer:

Step-by-step explanation:

take x degree as reference angle

using tan rule

tan x=opposite/adjacent

tan x=6.1/5.1

tan x=1.19

x=[tex]tan^{-1}[/tex]1.19

x=49.95

x=50 degree

The Aztec came to power in central Mexico
during the A.D 1300s.
fact or opinion

Answers

Answer:

fact

Step-by-step explanation:

help plssssss theres 2 pages

Answers

Answer:

10 × 5 - (- 6)² + (- 8) = 6

(- 5)² × 3 ÷ 5 + 9 = 24

(10 ÷ (- 5) - (- 2)) × (- 3)³ = 0

4 × (- 6) ÷ 8 + 3³ = 24

(- 5)² - 2 × (- 9) + 6 = 49

3 × 10 + 8 - 4² = 22

(- 9) - (- 8) + 2 × 4² = 31

(- 3)³ - 2 + 8 ÷ (- 8) = - 30

8 ÷ (- 4) × (- 6)² + 7 = - 65

4 × (- 8) + 6 - (- 2)³ = - 18

Step-by-step explanation:

10 × 5 - (- 6)² + (- 8)

10 × 5 - 36 - 8

10 × 5 - 36 - 8

50 - 36 - 8

50 - 44

6

(- 5)² × 3 ÷ 5 + 9

25 × 3 ÷ 5 + 9

75 ÷ 5 + 9

15 + 9

24

(10 ÷ (- 5) - (- 2)) × (- 3)³

(10 ÷ (- 5) - (- 2)) × - 27

(10 ÷ - 5 + 2) × - 27

(- 2 + 2) × - 27

0 × - 27

0

4 × (- 6) ÷ 8 + 3³

4 × (- 6) ÷ 8 + 27

- 24 ÷ 8 + 27

- 3 + 27

24

(- 5)² - 2 × (- 9) + 6

25 - 2 × - 9 + 6

25 + 18 + 6

49

3 × 10 + 8 - 4²

3 × 10 + 8 - 16

30 + 8 - 16

30 - 8

22

(- 9) - (- 8) + 2 × 4²

(- 9) - (- 8) + 2 × 16

- 9 + 8 + 2 × 16

- 9 + 8 + 32

32 - 1

31

(- 3)³ - 2 + 8 ÷ (- 8)

- 27 - 2 + 8 ÷ - 8

- 27 - 2 - 1

- 27 - 3

- 30

8 ÷ (- 4) × (- 6)² + 7

8 ÷ (- 4) × 36 + 7

- 2 × 36 + 7

- 72 + 7

- 65

4 × (- 8) + 6 - (- 2)³

4 × (- 8) + 6 - (- 8)

- 32 + 6 + 8

- 32 + 14

- 18

[tex]10 x 5-(-6)^2 +(-8)\\10x5-36+(-8)\\50-36+(-8)\\50-28\\22[/tex]

[tex](-5)^2[/tex]x3÷5+9

25x3÷5+9

75÷5+9

15+9

24

(10÷(-5)-(-2))x(-3)³

((-2)-(-2))x(-3)³

0x(-3)³

0x(-27)

0

4x(-6)÷8+3³

4x(-6)÷8+27

(-24)÷8+27

(-3)+27

24

(-5)²-2x(-9)+6

25-2x(-9)+6

25+18+6

43+6

49

3x10+8-4²

3x10+8-16

30+8-16

38-16

22

(-9)-(-8)+2x4²

(-9)-(-8)+2x16

(-9)-(-8)+32

(-9)-24

(-33)

(-3)³-2+8÷(-8)

(-27)-2+8÷(-8)

(-27-2+(-1)

(-27)-1

(-28)

8÷(-4)x(-6)²+7

8÷(-4)x(-36)+7

8÷144+7

0.055+7

7.055

4x(-8)+6-(-2)³

4x(-8)+6-8

(-32)+6-8

(-26)-8

(-34)

I hope this will help you. ^^

Help me please!!! Who ever helps gets brainliest!!!!!
Evaluate 3 + (-h) + (-4) where h = -7.

Answers

[tex]\boxed{6}[/tex] ✅

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]

[tex]3 + ( - h) + ( - 4)[/tex]

Putting the value "h = -7" in the above expression, we have

[tex]3 + [ - ( - 7)] - 4 \\ = 3 + 7 - 4 \\ = 10 - 4 \\ = 6[/tex]

Note:-

[tex]\sf\purple{BODMAS\: rule.}[/tex]

B = Brackets

O = Orders

D = Division

M = Multiplication

A = Addition

S = Subtraction

( And )

[tex]\sf\red{(-\:x\:-)\:=\:+}[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]

Answer:

6

Step-by-step explanation:

Replace h with -7

3+ [-(-7)]+(-4)

Multiply the negative with -7. The answer for it is 7

Add 3 and 7, which is 10

Subtract 10 with -4 which is 6

Answer is 6

Hope this helps!

Find the slope of the line on the graph.

Answers

The slope should be -1/2, because the line goes down 1 unit and then right 2 units.

Also it would be y = -1/2x+1 in y=mx+b.

Amy's art class is 6 hours long. How long is her class in minutes?

Answers

Answer:

360 minutes.

Step-by-step explanation:

Answer:

360 minutes

Step-by-step explanation:

DUE IN 5 MINUTES PLEASE HELP

Answers

Answer:

it's a

Step-by-step explanation:

He lost 50 lbs over a 5 moth period

Wally has a coupon to get 28% off a ticket to a Red Sox game. If the original price for his ticket is $160, how much will he pay for the ticket? Show/explain how you know!​

Answers

Answer:

28% off 160.00 is 115.20

The difference is 44.80

Step-by-step explanation:

One way is to multiply 160 by 28 percent, and then divide the answer by one hundred, then deduct that result from the original price.

Purchase Price:

$160

Discount:

(160 x 28)/100 = $44.80

Final Price:

160 - 44.80 = $115.20

Thus, a product that normally costs $160 with a 28 percent discount will cost you $115.20, and you saved $44.80.

You can also calculate how much you save by simply moving the period in 28.00 percent two spaces to the left, and then multiply the result by $160 as follows: $160 x .28 = $44.80 savings.

Furthermore, you can get the final price by simply deducting .28 from 1 and multiplying it by $160 as follows: (1 - .28) x $160 = $115.20 final price.

Answer:

160-44.8=115.2

Step-by-step explanation:

160 would be 100%

28%=x

[tex]\frac{160}{x} = \frac{100}{28}[/tex]

[tex]\frac{x}{160} =\frac{28}{100}[/tex]      x=44.8

28% of 160 would be 44.8

160-44.8=115.2

Rewrite each side with a common base and solve. Round your answer to two decimal places.

3^4x=1/27

Answers

x = -3/4

Explanation:

3^(4x) = 1/27
3^(4x) = 27^(-1)
3^(4x) = 3^(-3)
4x = -3
x = -3/4

Writing in Math Explain how you could convert a rate of miles
per hour to a rate of miles per second.

Answers

Answer:

divide the speed value by 3600

according to the most used browser by the name of g

Step-by-step explanation:

What is the mean of the following numbers?


x-3a,x-2a,x-a,x,x+a

Answers

Answer:

x - a

Step-by-step explanation:

The mean is calculated as

mean= [tex]\frac{sum}{count}[/tex]

         = [tex]\frac{x-3a+x-2a+x-a+x+x+a}{5}[/tex]

         = [tex]\frac{5x-5a}{5}[/tex]

         = [tex]\frac{5(x-a)}{5}[/tex]

         = x - a

Solve the equation 4(c-3)=8
What are two ways to start solving this equation? Choose both ways.

Answers

Answer:

- Use the distributive property to get 4c-12=8

-Divide both sides by 4 to get c-3 = 2

Step-by-step explanation:

- Use the distributive property to get 4c-12=8

[tex]4(c - 3) = 8 \\ 4 \times c - 4 \times 3 = 8 \\ 4c - 12 = 8[/tex]

Answer:4c-12=8

Step-by-step explanation:

4(c-3)=8

4xc-4x3=8

4c-12=8

consider a population consisting of values 2, 3, 5, 7. what is the population standard deviation?

Answers

Answer:

The population standard deviation is 1.92.

Step-by-step explanation:

Population mean:

Sum of all values divided by the number of values. Thus:

[tex]M = \frac{2 + 3 + 5 + 7}{4} = 4.25[/tex]

Population standard deviation:

Square root of the division between the sum of the difference squared of each value and the mean, and the number of values. Thus.

[tex]S = \sqrt{\frac{(2-4.25)^2 + (3-4.25)^2 + (5-4.25)^2 + (7-4.25)^2}{4}} = 1.92[/tex]

The population standard deviation is 1.92.

what was ram previous salary if he now get Rs 18600 after are increment by 20%​

Answers

Answer:

Rs 15500

Step-by-step explanation:

x = previous salary

0.20x + x = 18600

      1.20x = 18600

     /1.20      /1.20

             x = 15500

 

Which of the following is not an undefined term?

point
ray
plane
line

Answers

Answer:

point line and plane

Step-by-step explanation:

they are not an undefined term

the rectangle prism below has a volume of 464 3/4 cubic meters. a- write an equation that could be used to find the length of the prism b- find the length, show your work.

PLEASE HELP!!

Answers

Answer:

ok

Step-by-step explanation:

please mark me brainleast

A shirt was originally priced at $45. The store is having a 35% off sale. How much will you pay for the shirt after the discount (not including tax)

Answers

Answer:

29.25

Step-by-step explanation:

First find the discount

45 *35%

45*.35

15.75

Subtract this from the original price

45-15.75

29.25


Help find average rate of change :)

Answers

Answer:

-6

Step-by-step explanation:

Average rate of change over [-1, 2]

Average rate of change = [tex] \frac{f(b) - f(a)}{b - a} [/tex]

Where,

Where,

[tex] a = -1, f(a) = 8 [/tex]

[tex] b = 2, f(b) = -10 [/tex]

Plug in the values into the formula for average rate of change.

Average rate of change = [tex] \frac{-10 - 8}{2 - (-1)} [/tex]

= [tex] \frac{-18}{3} [/tex]

= -6

y=x^2 + 2
Tell whether it is a minimum or maximum.
O (0, 2); maximum
O (2,0); minimum
O (0, 2); minimum
O (2,0); maximum

Answers

(0, 2) minimum is the correct answer

A tire manufacturer has a 60,000 mile warranty for tread life. The manufacturer considers the overall tire quality to be acceptable if less than 8% are worn out at 60,000 miles. A study was done and researchers were 98% confident that the proportion of tires that are worn out at 60,000 miles lies between 7.8% and 9.6%. What type of statistical inference is this

Answers

Answer:

"Interval estimation" is the correct answer.

Step-by-step explanation:

Throughout the comparison to highlight estimates, the interval estimate would be the use of statistical analysis for calculating a range of potential measured values, which would be a continuous random variable.

The formula which is utilized to find these values is provided below:

⇒ [tex]\mu = \bar x \pm Z_{\frac{\alpha}{2} }\times \frac{\sigma}{\sqrt{n} }[/tex]

Here,

[tex]\bar x[/tex] is the mean.[tex]Z_{\frac{\alpha}{2} }[/tex] is the confidence coefficient.[tex]\alpha[/tex] is the confidence level.[tex]\sigma[/tex] is the standard deviation.[tex]n[/tex] is the sample size.

Which point is located on the y-axis of a coordinate grid?

A. (1, 1)
B. (1, 0)
C. (0, 1)
D. (2, 1)

Answers

Answer:

C

Step-by-step explanation:

(x, y) 0 is x and 1 is y so that is exactly on the y axis

HELP PLSSSSSS I will give Brainlyest

Answers

Answer:

51/8

Step-by-step explanation:

LCM of 8, 4 and 2 = 8

7/4*2=14/8

3/2*4=12/8

15/8+14/8+12/8=41/8 So Jerry played 41/8 or you can say 4 1/8 hours with his friends

Answer:

[tex]5\frac{1}{8}[/tex] hours

Step-by-step explanation:

First find the common denominator for all numbers.

The common denominator for all of those numbers will be 8.

[tex]1\frac{3}{4}=1\frac{6}{8}[/tex]

[tex]\frac{3}{2}[/tex]         The fraction is improper so we must simplify it!

[tex]1\frac{1}{2}[/tex]       Then convert it to a mixed number having a common denominator of 8!

[tex]1\frac{1}{2} =1\frac{4}{8}[/tex]  

Final Results: [tex]1\frac{6}{8} + 1\frac{4}{8} +1\frac{7}{8} =5\frac{1}{8}[/tex]

Final Answer: [tex]5\frac{1}{8}[/tex]

When the admission price for a baseball games was $4 per ticket, 40,000 tickets were sold. When the price was raised to $5, only 35,000 tickets were sold. Assume that the demand function is linear and that the variable and fixed costs for the ball park owners are $0.10 and $95,000 respectively.
A) Find the profit P as a function of x, the number of tickets sold P(x)=
B) Select the graph of P
C) find the marginal profits when 20,000 tickets were sold and when 40,000 tickets were sold. P'(20,000)= $ Per ticket P'(40,000)= $ Per ticket

Answers

Answer and explanation:

A. profit P as a function of x, the number of tickets sold

P(x)= total revenue - total cost

For 40000 tickets at $4

=40000×4-0.10×40000+$95000

=$160000-$99000

=$61000

For 35000 tickets at $5

= 35000×$5-0.10×35000+$95000

= $175000-$98500

= $76500

B. P has a downward slope like a demand curve. Increase in price equal to decrease in profit.

C. P(40000)= $4-$0.10+$95000/40000

= $4-$2.475

= $1.525

Price for 20000 tickets was not stated in question but feel free to use an arbitrary price(price should be higher than that for 35000 tickets and 40000 tickets)

Calculate the length to the line segment between those two coordinates. Briefly describe how you did your calculations.
(-1,2) and (5,-6)
(Please I don’t even know how I’m supposed to calculate that HELP)

Answers

Answer:

3

Step-by-step explanation:

Which inequality represents all values for X for which the product below is defined?

Answers

Answer:

x ≥0

Step-by-step explanation:

Given the product:

√(5x)*√(x+3)

The function has to be defined if x ≥0

Hence;

√(5x)*√(x+3)≥0

Find the product

√(5x)(x+3)≥0

Square both sides

(5x)(x+3)≥0

5x≥0 and x+3≥0

x≥0/5 and x ≥0 - 3

x ≥0 and x ≥-3

Hence the required inequality is x ≥0

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Somebody please help meee!!!! Claire completed the steps to solve the system of equations. 4 x minus 2 y = 4. 3 x + 3 y = 21. Step 1 12 x minus 6 y = 12. 6 x + 6 y = 42. Step 2 18 x = 54. Step 3 x = 3. Step 4 4 (3) minus 2 y = 4. 12 minus 2 y = 4. 2 y = negative 8. Y = negative 4. Step 5 Solution is (3, negative 4). Is Claire's solution to the system of equations correct? Explain why or why not. Find The Missing Angle Measure A. 34 B. 90C. 6D. 23please help me with this For the following right triangle, find the side length x . Round your answer to the nearest hundredth. -3(7+2) Distributive Property How many crusades were there and what was thier aims? 5a+4a= anyone know how to solve What does NOT happen during interphase A series circuit has 4 identical lamps. The potential difference of the energy source is 60V. The total resistance of the lamps is 20 . Calculate the current through each lamp. One of the following minerals is needed for men more than women : 1.Which of the following stars closest to the Earth?A. Alnilam B. Sirius C. Sun D. Vega2.Why do stars have colors? It is because of the ______________.A. different locationsB. varied temperatureC. presence of oxygenD. presence of carbon dioxide3.Based on apparent magnitude, which of the following stars is the brightest?A. Alpha Centauri C. RigelB. Betelgeuse D. Sirius4. The following are the ways which the stars differ from each other EXCEPTA. Brightness B. Color C. Shape D. Size5.Stars can be found in large groups throughout the universe. What are these groupscalled?A. Asteroids B. Comets C. Constellations D. Solar system6.How do stars appear to move in the night sky? It moves from ______________.A. East to West C. West to EastB. North to South D. South to North7.Why do stars appear in the sky? It is because the __________________.A. night sky is rotatingB. universe is expandingC. new galaxies are formed D. earth is rotating on its axis8. If you are located at the North Pole, where will you see the Polaris?A. OverheadB. Just above the horizonC. Around 450 from the horizonD. Polaris will not be seen in the North Pole PLEASE HELP ME!! ASAPANSWER EXPLANATION = BRAINLIEST & FIVE STARS What is the value of cos Q?Write your answer as a simplified fraction. Pedro vende Televisores a 1020 lempiras y las compra a 800 lempiras cada uno, para mantener su negocio gasta 1000 enluz, 2000 en electricidad y 3900 en otros gastos, ademas debe pagar 45 lempiras de comisin al vendedor por cadaTelevisor que vende (piense si pagar es costo o ingreso y si es variable o fijo). Which one of these is the most accurate in determining the absolute age of two rocks?A. Vertical positionB. the presence of unconformitiesC. Radioactive dating of each layerD. Comparing fossils in the layers The ratio of cars to residents on a small island is 1:112. There are 2,912 residents on the island. How many cars are there on the island?a.2,800c.112b.26d.52 Based on context clues, what is the best definition of the word "expendable?necessary to an operationknowledgeable about a topiccapable of being sacrificeduseless in a specific situation One week, Isabelle bought 2 bags of apples and 3 bags of oranges. The next week, she bought 1 bag of apples and 2 bags of oranges. If a represents the cost of each bag of apples and r represents the cost of each bag of oranges, which expression could Isabelle use to calculate the difference between the amounts she spent each week? A. 3 a minus r B. 3 a minus 5 r C. (2 a minus 3 r) minus (a minus 2 r)D . (2 a + 3 r) minus (a + 2 r) Which phrase best describes the term monarchy?rule by one personrule by a mobrule by the peoplerule by religious elites a. 11.2 in. b. 19.6 in. c. 25.2 in. A group of friends went to lunch. The bill, before sales tax and tip, was $37.50. A salestax of 8% was added. The group then tipped 18% on the amount after the sales taxwas added. What was the amount, in dollars, of the sales tax?Show your work.Answerquestion continued: what was the total amount the group paid, including tax and tip?