What is the approximate surface area of a cylinder that's base has a radius of 2, and it's lateral rectangle has a length of 6.28, and a width of 4?

Answers

Answer 1

Answer:

Surface area of cylinder = 50.26 unit² (Approx.)

Step-by-step explanation:

Given:

Radius of base r = 2 units

Width of lateral rectangle = 4 units

Length of lateral rectangle = 6.28 units

Find:

Surface area of cylinder

Computation:

Surface area of cylinder = 2[Area of base] + Area of lateral rectangle

Surface area of cylinder = 2[πr²] + [l][b]

Surface area of cylinder = 2[(22/7)(2)²] + [6.28][4]

Surface area of cylinder = 2[(22/7)(4)] + 25.12

Surface area of cylinder = 25.14 + 25.12

Surface area of cylinder = 50.26

Surface area of cylinder = 50.26 unit² (Approx.)


Related Questions

Need help fast
Thank you !!!!

Answers

Answer:

B) height = 5√3

Step-by-step explanation:

height² = 10² - 5² = 100 - 25 = 75

height = √75 = 5√3

Please help I literally don't understand-

Answers

Well, QR is the hypotenuse of the triangle and PT is another side of the triangle. You can use phythagoras theorem to work this out. So squareroot 13-8. That should give your your answer

You could find QT by using the Pythagorean Theorem.

8^2+QT^2=13^2

64+QT^2=169

QT^2=105

QT=

[tex] \sqrt{105} [/tex]

HELP ME PLEASE! I need to find the Interquartile range of : 0,0,0,1,1,3,3,3,4,4,4,6,6,7,7,7,8,8,9,10

Answers

Answer:

The interquartile range is 5

The probability of randomly selecting a white flower from a garden that has green, pink, yellow, and white flowers is 3%.
Which of the following describes the likelihood of selecting a white flower?
A. likely
B. unlikely
C. neither unlikely nor likely
Plz helppp

Answers

Answer: B. Unlikely

You flip a coin 50 times. Of the 50 flips, the coin landed on heads 30 times. Use the questions below to compare the experimental probability of flipping heads with the theoretical probability of flipping heads.

Answers

Given:

Of the 50 flips, the coin landed on heads 30 times.

To find:

The experimental probability of flipping heads and compare it with the theoretical probability of flipping heads.

Solution:

We have,

Total number of trials = 50

Total number of heads = 30

The experimental probability of flipping heads is:

[tex]\text{Experimental probability}=\dfrac{\text{Total number of heads}}{\text{Total number of trials}}[/tex]

[tex]\text{Experimental probability}=\dfrac{30}{50}[/tex]

[tex]\text{Experimental probability}=\dfrac{3}{5}[/tex]

[tex]\text{Experimental probability}=0.6[/tex]

A coin has two sides one is heads and another is tails. So, the theoretical probability of flipping heads is:

[tex]\text{Theoretical probability}=\dfrac{1}{2}[/tex]

[tex]\text{Theoretical probability}=0.5[/tex]

Therefore, the experimental probability of flipping heads is 0.6 and the theoretical probability of flipping heads is 0.5. So, the experimental probability is greater than the theoretical probability of flipping heads.

A cylinder has a volume of 791.28 cubic centimeters. The height of the cylinder is 7.0 inches. Calculate the radius of the cylinder. Use 3.14 for π.

Answers

Answer:

The radius is 6

[tex] \sqrt{v \div \pi \times h =} [/tex]

=791.28/3.14×7.0

=

[tex] \sqrt{36} [/tex]

=6

The radius of cylinder is 3.764 cm.

What is volume?

Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space occupied within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity.

Finding an object's volume can help us determine how much material is needed to fill it, such as how much water is needed to fill a bottle, aquarium, or water tank.

Given volume of cylinder = 791.28 cm³

height  = 7.0 inches

so, 1 inch  = 2.54 cm

7 inch  = 2.54 x 7 = 17.78 cm

height  = h = 17.78 cm

volume of cylinder = πr²h

where r = radius

V = πr²h

791.28 = 3.14(17.78)r²

r² = 791.28/55.8292

r² = 14.1732

r = √14.17732

r  = 3.764 cm

Hence the radius  is 3.764 cm.

Learn more about volume;

https://brainly.com/question/1578538

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Is it
A.)A=35,B=34
B.)A=28,B=34
C.)A=35,B=28
D.)A=34,B=28


Answers

Answer:

D. A=34, B=28

Step-by-step explanation:

In the bulletin points, it says that seconds 3-5 are decreasing. That means that those heights can't be higher than second 2 (34). The only option that works is option D.

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

Option A is incorrect because it starts with 35ft which is higher than second 2(34) so that is automatically wrong.

Option B is incorrect because it is increasing instead of decreasing.

Option C is incorrect for the same reason as Option A: it starts with 35ft.

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

Therefore, the only correct option is Option D.

Have a nice day!!

PLEASE HELP ASAP!! I WILL GIVE BRAINLIEST. Coleen read 159 pages of a book. This number represents 75% of the number of pages in the book. What is the total number of pages in the book.

Answers

find 25% of 159 and add that on to it
212 pages is the answer

someone please answer this fast 35cos(78)

Answers

Answer:

−30.02310826357

Step-by-step explanation:

−30.02310826357

Elsa drove 864 miles in 12 hours.
At the same rate, how many miles would she drive in 8 hours?

Answers

Answer:

576 miles

Step-by-step explanation:

Answer:

else will drive 567 miles in 8h

Step-by-step explanation:

take 864÷ 12 to get how many hours she drives in one hour

you get 72

then you take 864÷2 to get how many miles she'll drive in 6h

you get 432

then you take 432 and add 144 or 72 + 72

and you get 567 miles in 8h

hope this helped!!

Just need some answers plz and thank you

Answers

5. 153.86

4. 43.96

have an amazing day <3

HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP

Answers

Positive correlation. But the graph does not imply causality.

Positive correlation, because days where more batteries were sold, they also sold more CDs.

There is not causality, because selling more batteries does not automatically mean they will sell more CDs.

Answer:

B

Step-by-step explanation:

It is a positive correlation and it has a causation

Sketch a graph of a function that has all of these properties:

The AROC on [-3,0] is -2 and the AROC on [1, 3] is 0.5.
The IROC at x=1 is -1 and the IROC at x=2 is 1.

AROC means average rate of change
IROC means instantaneous rate of change​

Answers

How are we supposed to make a graph?

A bookcase contains these books. 36 cookbooks 17 autobiographies
39 novels 22 reference books One book is selected at random from the bookcase. Based on the information, which statement is true?
A The book is twice as likely to be a cookbook as a reference book.
B The book is just as likely to be a novel as it is to be an autobiography or a reference book.
C. The book is more likely to be a cookbook than a novel.
D. The item is half as likely to be a reference book as a novel.

Answers

Answer:

A

Step-by-step explanation:

Mind says Paint cost $29.95 per gallon nikki needs 3,6 gallons to complete the paint project please tell me the answer

Answers

Answer: [tex]\$107.82[/tex]

Step-by-step explanation:

Given

The cost of paint is [tex]\$29.95\text{per gallon}[/tex]

Nikki need [tex]3.6[/tex] gallons of paint

So, the cost of the paint is the product of the rate and volume of paint

Put the values

[tex]\Rightarrow 3.6\times 29.95=\$107.82[/tex]

What is the value of x in the equation below? 3x - 15 = 60

Answers

Answer:

3x=60+15

x=75/3

x=25

Thus the answer is 25

Answer:

[tex]3x - 15 = 60 \\ 3x = 60 + 15 \\ 3x = 75 \\ x = \frac{75}{3} \\ x = 25[/tex]

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

The zeros of a quadratic function are -7 and 3. Which of the following could be the function? Select all that apply.
A. F(x)=2x^2-8x-42
B. F(x)=5x^2+20x-105
C. F(x)=x^2+4x-21
D. F(x)=x^2-4x-21

Answers

Answer:

B and C

Step-by-step explanation:

What is the surface area of a cube that has a radius of 9 ft and height of 3 ft

Answers

Answer:

If it has a radius of 9 then the length will be 18 and it would be a 18 by 3 shape and that's not a cube....

Step-by-step explanation:

If n/12 = 15/36 , then n= ___.
pls help me!

Answers

Answer: n=5

have an amazing day <3

n x ? = 15
12 x ? = 36

12 x 3 =36
15 / 3 = 5

N= 5

What is the measure of the missing angle?
35°
105°

Answers

Answer:

Answer: 40 degrees

Step-by-step explanation:

If this is a triangle the missing angle would be 40 degrees because

35 + 105 + 40 = 180

Hope this helps!

Always remember that the three angles of a triangle must add up to 180 degrees. No exceptions for any triangle. With that being known, you know that of the 180 degrees a triangle is supposed to have, 140 degrees is already there (35+105). The remaining degrees left is 40 degrees (180-140). 40 degrees is the measure of the missing angle.

Please Help me with this question. Will give Brainllest

Answers

Answer:63

Step-by-step explanation:

What is the measure of angle z in this picture? NEED HELP ASAP

Answers

137

Step-by-step explanation:

43+ z=180

z=180-43

= 137

Answer:

137°

Step-by-step explanation:

Subtract 43 from 180

180 is the degree of a straight line

Angles y and 43 degree angle are equal so to find z you subtract the 43 from 180

180 - 43 = 137

What is the solution set for this inequality
-8x + 40 > -16
A. x > 7
B. x < 7
C. x > -3
D. x < -3

Answers

Answer:

Letter c po sorry nasa daan po kasi ako kaya di po ako makakapag explain

Step-by-step explanation:

Sorry po talaga pero sigurado po ako sa sagot ko

Three students wrote a relationship between decimal, fraction, and percent's. Which of the students wrote an equivalent relationship? Lori wrote: 75% = 3/5 Talisha wrote: 0.05 = 50% Shannon wrote: 3/8 = 0.375

Answers

Answer:tyeydStep-by-step dh:

ghe

Which is the graph of y – 3 = -2/3 (x + 6)?

Answers

answer is in attachment!

Lin solved the equation 8(x - 3) + 7 = 2x(4 - 17) incorrectly. Identify the TWO errors Lin made while solving.

Lin’s solution:

Answers

Answer:

when she subtracts 8x to 26 and dividing

Step-by-step explanation:

Step-by-step explanation:

[tex]8(x - 3) + 7 = 2x(4 - 17) \\ 8( \times - 3) + 7 = 2x( - 13) \\ 8x - 24 + 7 = - 26x \\ 8x - 17 = - 26x \\ - 17 = - 34x \\ x = \frac{1}{2} [/tex]

Need some help on this question. Will award brainliest to a correct answer.

A car is moving at a fixed speed. The distance D that the car covers is then directly proportional to the time T it moves. Find the speed of the car. Write a formula that connects D and T. What is the coefficient of variation k equal to?

Answers

The formula is D=kT where k is the constant

Max wants to find our the exercise habits of local children. He plans to survey every third child he sees coming out of sporting goods store. Is this sample biased or unbiased?

Answers

Its biased because Max wants to find out the exercise habits of LOCAL children, but he is specifically going to an area where kids are mostly likely fit die to the fact that they are exiting a sporting good store, so yeah, Biased. Hope it helps.

Miyoko bought 3 packages of tape that each had 1 yard 2 feet of tape in them how many inches of tape did miyoko buy?

Answers

Answer: 180 inch

Step-by-step explanation:

Given

Miyoko bought 3 packages of tape

Each tape has 1 yard and 2 feet of tape

[tex]1\ \text{yard}=3\ \text{foot}[/tex]

[tex]1\ \text{ft}=12\ \text{inch}[/tex]

converting yard to feet

[tex]\Rightarrow 3+2=5\ ft[/tex]

Convert feet to the inch

[tex]\Rightarrow 5\times 12=60\ \text{inch}[/tex]

For 3 tapes, it is

[tex]\Rightarrow 60\times 3=180\ \text{inch}[/tex]

Thus, the total tape is [tex]180\ \text{inch}[/tex]

Please help! I will give brainlist!!

Answers

Answer:

31.5

Step-by-step explanation:

Assuming that the lowest point and the highest point on the Ferris wheel are opposite each other, the difference of height will be the distance between the two points, and thus, the distance across fo the Ferris wheel. Divide this value by (2) to find the radius of the strucutre.

75 - 12

= 63

63 / 2

= 31.5

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