PLS ADD EXPLANATION
Cylinder radius is 2 cm height is 10cm what is the surface area

Answers

Answer 1

Answer:

150.83 (cm²).

Step-by-step explanation:

1) the area of the bottom and top is: A₁=π*r²*2=2*3.1415*4≈25.13 (cm²);

2) the length of the circle in the bottom/top side is: l=2*π*r=2*3.1415*8≈12.57 (cm);

3) the area of the side surface of the cylinder is: A₂=l*h=12.57*10=125.7 (cm²);

4) the required area of the cylinder is:

A=A₁+A₂=25.13+125.7=150.83 (cm²).


Related Questions

PLEASE HELP!!
ILL GIVE MORE POINTS TO THE FASTEST ANSWER

Answers

It’s really easy do not make it complicated on yourself!

Fist thing you should know ANY NUMBER WHICH IS TO POWER ZERO THE ANSWER WILL ALWAYS BE ONE!!

Part A : (7^2)^x is (49)^x

(49)^x = 1 , here is basically asking you what’s the value of X to know which number to the power of 49 to put so that it equals to 1, obviously the answer is 0 as we said before ANY NUMBER TO THE POWER OF 0 , the answer will be 1

Part A = 0
————————-

Part B IS GONNA BE WAY EASIER NOW TRUST ME!!

(7^0) = 1

(1)^x = 1

So now is asking what number to put for x for you to multiply by one to get one it’s obviously 1, because 1 x 1= 1

Part B = 1
————-
I hope you understand my explanation so good luck and best of wishes!!

Use the Fundamental Counting Principle to find the number of outcomes from tossing a quarter, a dime, and a nickel. ​

Answers

Answer:

aaaaaaaaacvvrcgb

Type the missing number in this sequence: 1, 10, 100, 1,000, 10,000,​

Answers

Answer:

100,000

Step-by-step explanation:

I'm pretty sure. hope this helped <3 also I LOVE UR PFP ;)

Answer: 100,000

Explanation: I assumed that the next number was missing, so if we continued this pattern 100,000 would be next. This is just adding another 0 to the end of the last number.

which shape has no lines of symmetry, four unequal sides, two right angles and one pair of parallel lines?

Answers

Answer:

circle and two lines that don't touch and are the same length are parrarell

Circle they dint have sides

IT ISNT THE 1st OR 2nd HELP LOOK AT IMAGE PLEASE

Answers

Answer:

Last option

Step-by-step explanation:

First method :

Red Line:

Take 2 coordinates through which the line passes. Let it be (0, 7) and (14, 0).

[tex]slope, m=\frac{ 0-7}{14-0} = -\frac{7}{14} = -\frac{1}{2}[/tex]

[tex]Equation : (y - 7) = -\frac{1}{2}(x)[/tex]

                [tex]2y - 14 = -x\\2y + x = 14\\4y + 2x = 28[/tex]                  [tex][ multiply \ by \ 2 \ on \ both \ sides][/tex]

Blue Line:

Take coordinates through which the line passes.

Let it be (-4, -12) and (-10, -9).

[tex]slope, m = \frac{-9 + 14}{-10} = \frac{5}{-10} = -\frac{1}{2}[/tex]

[tex]equation : (y + 12) = -\frac{1}{2} (x+4)\\[/tex]

              [tex]y = -\frac{1}{2}x - 2 - 12\\\\y = -\frac{1}{2}x -14\\\\2y = -x - 28\\\\-2y = x +28[/tex]

Second Method:

From the graph it is clear the lines are parallel. The slopes of line parallel to each other are equal. So convert each equation into standard line equation form :y = mx + b

And check for set of equation whose slope are same.

First set :

[tex]y = 10x - 15 \\\\=> slope = 10\\\\-9x + 2y = 10\\2y = 9x + 10\\\\y = \frac{9}{2}x + 5 => slope = \frac{9}{2}[/tex]

Slopes are not equal.

Second set :

[tex]2y = 2x + 5\\y = x + \frac{5}{2}\\slope = 1\\\\\\3x -4y = -5\\4y = 3x + 5\\\\\y = \frac{3}{4}x + \frac{5}{4}\\\\slope = \frac{3}{4}[/tex]

Slopes are not equal.

Third set :

[tex]y = 3x +10 \\slope = 3\\\\\\2x - 3y = -6\\3y = 2x +6\\\\y = \frac{2}{3}x + 2\\\\slope = \frac{2}{3}[/tex]

Slopes are not equal.

Fourth set :

[tex]2x + 4y = 28\\4y = -2x +28\\\\y = -\frac{1}{2}x + 7\\\\slope = -\frac{1}{2}\\\\\\-2y = x + 28\\\\y = -\frac{1}{2}x - 14\\\\slope = -\frac{1}{2}[/tex]

Slopes are same.

Help me please Help me please Help me please Help me please

Answers

Answer:

y=-3/4x+3

Step-by-step explanation:

the slope is -3/4

in this case, y=mx+b

so y=-3/4x+b

b is the y intercept, so it would be 3

altogether, y=-3/4x+3

What is the value of x?
26°
オー
X=
[?]
Enter

Answers

273 and my proof is x is the value of 1 and the answer is 273 cause 26 degrees is the value of 273

Answer:

154 degrees

Step-by-step explanation:

A quadrilateral has the sum of the interior angles that is 360 degrees

for the tangent theorem we know that the angles where the lines intercept the circumference have a value of 90 degrees

x + 90 + 90 + 26 = 360

x + 206 = 360

x = 360 - 206

x = 154 degrees

Please help thanks!

Answers

14+36/(-4)
14 + (-9)
5

Therefore your answer is 5.

Answer:

5

Step-by-step explanation:

=14 + 6^2 ÷ (-4)

=14 + 36 ÷ (-4)

divide 36 by -4

=14 + (-9)

=14 - 9

=5

Find the x-intercept and y-intercept of the graph of the equation 2y = 3x - 6.

Answers

Given:

The equation is:

[tex]2y=3x-6[/tex]

To find:

The x-intercept and y-intercept of the graph of the given equation.

Solution:

We have,

[tex]2y=3x-6[/tex]

Substitute [tex]y=0[/tex] to find the x-intercept.

[tex]2(0)=3x-6[/tex]

[tex]0+6=3x[/tex]

[tex]\dfrac{6}{3}=x[/tex]

[tex]2=x[/tex]

So, the x-intercept of the graph of the given equation is 2.

Substitute [tex]x=0[/tex] to find the y-intercept.

[tex]2y=3(0)-6[/tex]

[tex]2y=-6[/tex]

[tex]y=\dfrac{-6}{2}[/tex]

[tex]y=-3[/tex]

So, the y-intercept of the graph of the given equation is -3.

Therefore, the x-intercept is 2 and the y-intercept is -3.

Three times a number increased by ten to equal to twenty less than six times the number. Find the number.

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

will mark brainlist.​

Answers

Answer:

x =10

Step-by-step explanation:

3x + 10 = 6x -20

3x - 6x + 10 = -20

-3x + 10 = -20

-3x = -20 -10

-3x = -30

x = -30/-3

x = 10

Check:

3(10) + 10 = 6(10) - 20

30 + 10 = 60 - 20

40 = 40

It took six people four days to build a wall.
a) Working at the same rate, how long would it have taken eight people to build the wall?
b) Working at the same rate, how many people would have been needed if the wall had
to be completed in two days?

Answers

Answer:

a=5 days, 3 hours

b= 3 people

someone please help me

Answers

Answer:

a. 15%

b. .73

c. 39/100, .39

d. .04, 4%

e. 77/100, 77%

f. 46/100, .46

g. .5, 50%

h. 6/100, 6%

i. 80/100, .8

j. .26, 26%

Step-by-step explanation:

Let's do the Fraction to Percent part first. Since all of the fractions have 100 in the denominator, this should be easy. The first one is 15/100 so this is just 15%, the next one is 73/100 and you can see that it is just 73%. It is the same way going from Percent to Fraction. On part f, we have 46%, so this will be 46/100.

For decimals, I recommend getting the percent first. I will use part f as my example again. You start with 46%. To make this a decimal, you just move the decimal point two spaces to the left. So, you end up with 0.46. To go from decimal to percent, you just move the point 2 spaces to the right.

Decide whether the triangles are similar. If they are, write a similarity statement and state the reason justifying the similarity.
If necessary, you may learn what the markings on a figure indicate.
I WILL MARK BRAINLIEST

Answers

Answer:

Step-by-step explanation:

solve for x round to the nearest tenth if necessary

Answers

Answer:

x = 74.4

Step-by-step explanation:

tan = opp/adj

tan42 = 67 / x

x = 67/tan42

use calculator

x = 74.411038493555922

rounded

x = 74.4

The answer is in fact 74.4

SOMEONE PLEASE PLEASE HELP ME WITH THIS THANK YOU

You can transform ⨀Z to ⨀Z' by translating it and then performing a dilation centered at Z'. Find the translation rule and the scale factor of the dilation.

Simplify the scale factor and write it as a proper fraction, improper fraction, or whole number.

EXPLANATION = BRAINLIEST

Answers

Answer and Step-by-step explanation:

Scale factor of 4

x, y: (3, 10)

Translate 3 units right, up 10 units.

#teamtrese #PAW (Plant aNd Water)

If point P is Nine-elevenths of the distance from M to N, what ratio does the point P partition the directed line segment from M to N into?

9:2
9:9
9:11
9:13

Answers

Given:

Point P is Nine-elevenths of the distance from M to N.

To find:

The ratio in which point P partition the directed line segment from M to N.

Solution:

It is given that, point P is Nine-elevenths of the distance from M to N. So,

[tex]\dfrac{MP}{MN}=\dfrac{9}{11}[/tex]

It can be written as

[tex]\dfrac{MP}{MN}=\dfrac{9}{11}[/tex]

Let the lengths of MP and MN are 9x and 11x respectively. Then,

[tex]PN=MN-MP[/tex]

[tex]PN=11x-9x[/tex]

[tex]PN=2x[/tex]

Now,

[tex]\dfrac{MP}{PN}=\dfrac{9x}{2x}[/tex]

[tex]\dfrac{MP}{PN}=\dfrac{9}{2}[/tex]

[tex]\dfrac{MP}{PN}=9:2[/tex]

It means, point P divides the line segment MN in 9:2.

Therefore, the correct option is A.

Answer:

A . on E  D  G  E

Step-by-step explanation:

trust

PLEASE HELP MEEEEEE PLEASE I need HELP. thank you I love you​

Answers

Answer:

b

Step-by-step explanation:

<ABC refers just to angle B. Angle B is on the opposite side of 98 therefore we would have to divide it by two. 98 divided by 2 is 49

What is constant of proportionality? I'm still having trouble understanding it. Can someone please give me a give problems and tell me how to find the COP (constant of proportionality) <3 thamks.

Answers

Answer:

See Explanation

Step-by-step explanation:

Given two variables (say x and y); the constant of proportionality is the ratio between these to variables.

Illustration; y is directly proportional to x

The above statement can be represented as:

[tex]y\ \alpha\ x[/tex]

When converted to an equation, you get

[tex]y\ =k x[/tex]

k, in the above equation, represents the constant of proportionality

Divide both sides by x to solve for k

[tex]k = \frac{y}{x}[/tex]

Take for instance: [tex]y = 3x[/tex]

Divide both sides by x

[tex]\frac{y}{x} = 3[/tex] --- 3 is the constant of proportionality

Find the percentage of change from 76 inches to 99 inches.

Answers

Answer: 30.26%

Step-by-step explanation:

Answer:

Detailed answer :

where : 76 is the old value and 99 is the new value . in this case we have a positive change ( increase) of 30.2631578947 percent because the new value is greater than the old value.......

Whoever answers these 2 right gets brainliest and 25 points!

Answers

The first one is B and the second one is C

Audrey owes her parents a debt of $20. Her parents will remove $10 of the debt if she babysits her little brother. Which expressions represent this situation? Choose BOTH expressions. The image is above. NO LINKS OR FAKE ANSWERS OR I WILL REPORT YOU. Thanks the image is above¡¡♡​

Answers

The correct answer is -20+10 and -20-(-10)
-20 + 10 and -20 - (-10) I think pls don’t report if it’s wrong! :’(

10 points!!! Please answer 8 and 9 and hurry

Answers

Answer:

Step-by-step explanation:

since EG bisects angle DEF

31 = x + 15

31 - 15 = x

x = 16 degree

6x - 4 = 56

6x = 56 + 4

x = 60/6

x = 10

Answer:

8. 16

9. 10

abcdefghijklmnopqrstyvwxyz

Graph the line with the equation y=-1/6x+3

Answers

Hope this helps ;)

(not sure if you meant to put a negative sign)
hope this is helps! gl

PLEASE HELP ME: Click on the graph to choose the correct answer to the equation.


x - 2y < 0

(Choose one of the graphs from the image as the answer)

Answers

It's the third one I believe. y>1/2x

EASY EASY EASY EASY EASY EASYYYYY what is the number following k? before k? what is their sum
ANSWER PLSSS. WHOVER ANSWERS FIRST IS BRAINLIEST

Answers

Answer:

following k is l

before k is j

Sum j + k + l

Step-by-step explanation:

I think there may be something missing from your question.

Answer:

um, K=1?  I think you are missing stuff from your question cuz all you gave us was K. So, before K is 0 and after is 2

Step-by-step explanation:

If K were to equal one, It Would go 0, 1(K), 2

So The Sum Could Be Three ( 3 )

Find the measure of the missing angles. (someone help this is so urgent [cry])

Answers

Answer:

b=77

c = 103

Step-by-step explanation:

b and 77 are vertical angles and vertical angles are equal

b= 77

c and 77 are supplemental angles and supplemental angles add to 180

c+77 =180

c = 180-77

c =103

[tex] \large \sf \star \: \blue{Answer} \: \star[/tex]

[tex] \small \sf \mapsto\: b = \fbox{77 °} [/tex]

[tex] \small \sf \mapsto \: c = \fbox{ 103 °}[/tex]

Step-by-step explanation:

Here,

Angle b and 77° both are vertical angles . So, both angles are equal . b = 77 °

And,

Angle b and angle c are on straight line so it's supplementary angles and we know that sum of all angles of supplementary angles is 180 °.

So, b + c = 180 °

77° + c = 180 ° ... { b = 77 -( vertical angle )}

subtract 77 from each sides

77 - 77 + c = 180 ° - 77 °

c = 103 °

the sum of the two fractions is 9/26. if one of the fraction is 1/13, find the other​

Answers

Answer:

7/26

Step-by-step explanation:

let the other fraction be x

according to the question,

1/13 +x =9/26

x = 9/26 - 1/13

take lcm of the denominator . lcm=26

x = 9*1 - 1*2/26

x = 9-2/26

x=7/26

in the figure what is the sum of the measures a,b,c,d,e and f of the angles marked.​

Answers

Answer:

a right angle

b acute angle

c obtuse angle

d obtuse angle

e acute

f obtuse

A study found a relationship between the number of sugary drinks consumed by a child each day and the prevalence of Type II diabetes. What is the dependent variable? The prevalence of Type II diabetes the number of sugary drinks consumed by a child during a day both the prevalence of Type II diabetes and the number of sugary drinks consumed by a child during a day there is no dependent variable

Answers

Answer:

A. The prevalence of Type II diabetes

Step-by-step explanation:

A. The prevalence of Type II diabetes

B. The number of sugary drinks consumed by a child during a day

C. Both the prevalence of Type II diabetes and the number of sugary drinks consumed by a child during a day

D. There is no dependent variable

The prevalence of Type II diabetes depends on number of sugary drinks consumed by a child each day

If

x = The prevalence of Type II diabetes

y = number of sugary drinks consumed by a child each day

Then,

x depends on y

The dependent variable is The prevalence of Type II diabetes

The circumference of a circle is 8.34cm. Find the length of the diameter. Give your answer rounded to 2 DP.

Answers

Answer:

Diameter, D = 2.65 cm

Step-by-step explanation:

Given the following data;

Circumference of circle = 8.34 cm

To find the length of its diameter;

Mathematically, circumference of a circle is equal to;

C = πD

Where;

C is the circumference of a circle.D is the diameter of a circle.Pie, π = 3.142

Substituting into the formula, we have;

8.34 = 3.142 * D

[tex] D = \frac {8.34}{3.142} [/tex]

Diameter, D = 2.65 cm

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