Find the surface area of a cylinder with radius 8m and height 5 m

Answers

Answer 1

Answer:

A≈653.45

Step-by-step explanation:

Solution

A=2πrh+2πr2=2·π·8·5+2·π·82≈653.45127


Related Questions

WILL GIVE BRAINLIEST

Answers

Answer:

Step-by-step explanation:

I assume the problem is to graph the lines.  The easiest is to pick two values of x and calculate y for each line.  For example:

21.  y = -4x + 5  I'll randomly choose vales of 1 and 2 for x and calculate y:

(1, 1)  and   (2, -3)

Now mark those two points and draw a straight line through them.  It is an equation of a straight line, so we know this will be correct.

22.  Same process:

(1,6) and (2,7)

23.  (1,0) and (2,-3)

24.  (1,-4) and (2,-6)

=====================

These are shown in the attachment.  What's also shown is the second method of producing the lines:  Use a graphing program such as DESMOS to plot the equations. The points aren't needed - they are there to demonstrate that the first approach also works.

What is the reciprocal of A if A doesn't equal 0?

Answers

Answer:

1/a

Step-by-step explanation:

12. Name the angle included between AB and AD.

Answer fast

Answers

Answer: Either angle DAB or angle BAD

Explanation:

The segments AB and AD have the point A in common. So this common point is the middle letter of the angle name. We could go for angle DAB or angle BAD as they both name the same exact angle. The order doesn't matter as long as the middle letter is fixed like this.

Terre Haute to Indianapolis to Bloomington measure 3 cm on the map. What is the actual distance?

a) 100 km
b) 150 km
c) 200 km
d) 250 km

Answers

From the information given, it can be deduced that the actual distance from Terre Haute to Indianapolis to Bloomington is 150km.

From the complete information, we are told that on the map of Indiana, 1cm = 50km.

Therefore, since Terre Haute to Indianapolis to Bloomington measures 3 cm on the map, the actual distance will be:

= 3 × 50 = 150km

Learn more about distance on:

https://brainly.com/question/2166162

Answer:

if you are from connexus 8th grd 02051 pre-algebra A unit 5 lesson 6

then here are the correct answers

Step-by-step explanation:

1. B. 150 km

2. A. 300 km

3. D. 7.5 cm

4. B. 30 yd ^ 2

5. A. 90 x 45

i hope this helps please coment if you can! = ) <3

10x1+2x60/10

Hi! Um I have only four questions on an assignment thats due Friday, this is one of them and I keep getting stuck, can someone please help me out?

Answers

Answer:

2

Step-by-step explanation:

Bernie had $30 in his bank account. Today, he withdrew d dollars but tomorrow he will
bank account after tomorrow.
deposit $15. Write an expression to represent how much money Bernie will have in his

Answers

Answer:

Step-by-step explanation:

Bernie had $30 in his bank account.

Today he withdrew $d

Now he has = $30 — $d

Because from $30 he took away $d that’s why $d have to subtract from the $30.

Tomorrow he’ll deposit $15 and that will be added up with current balance $30 —$d.

So, the expression to represent how much money Bernie will have in his bank account is $30 —$d + 15

Can someone help me please​

Answers

Answer:

D

Step-by-step explanation:

Hurry I need to get this done

Answers

A. 7 - 4 = 3. So, these points are separated by a distance of 3 units.

B. 2 - 1 = 1. So, these points are separated by a distance of 1 unit.

C. 3 - 1 = 2. So, these points are separated by a distance of 2 units.

D. 8 - 4 = 4. So, these points are separated by a distance of 8 units.

So A. is the correct answer.

Answer:

A. (2,4), (2,7)

Hope you could get an idea from here.

Doubt clarification - use comment section

Hi! im not sure if my answer is correct or not can someone check me :)

Answers

it is correct goodluck

What is 0.02349 written in standard form to 3 significant figures

Answers

Answer: The answer is (B)

Explanation: The answer is (B) because, there are 2 zeros so that means that there would have to be a 2 behind the 10 and then there is 2,3,4,and 9. We take out the 9 and use the other numbers, bring over the decimal and now you have [tex]2.34 x 10^{2}[/tex] .

Let's cancel out from left to right

[tex]\\ \sf\Rrightarrow 0.02349[/tex]

[tex]\\ \sf\Rrightarrow 0.0235\times 10^{-1}[/tex]

[tex]\\ \sf\Rrightarrow 2.35\times 10^{-3}[/tex]

Option C is correct

please help quick

A cone has a height of 10 in. and a radius of 4 in.

What is the slant height of the cone?

A
116−−−√
in.
B
96−−√
in.
C
84−−√
in.
D
104−−−√
in.

Answers

Answer: Choice A.   sqrt(116)

==========================================================

Explanation:

If we were to view a vertical cross section of the cone, then we get a triangle. This triangle splits along the vertical height line to form two congruent right triangles.

The horizontal piece of each triangle is the radius r = 4.

The vertical piece is the height h = 10.

Apply the pythagorean theorem to find the slant height, which is the hypotenuse of the right triangle.

a^2 + b^2 = c^2

r^2 + h^2 = x^2

4^2 + 10^2 = x^2

16 + 100 = x^2

116 = x^2

x^2 = 116

x = sqrt(116)

Simplify the variable expression below as much as possible.
6x + 1 + 7- 3

Answers

Answer:

6X+5

Step-by-step explanation:

Answer:

6x+5

Step-by-step explanation:

6x+1+7-3

6x+(1+7)-3

6x+8-3

6x+5

WHAT IS 12+23+67+10+19+60=

Answers

Answer:

The answer is 191.

Hope that helps. x

Answer:

191

Step-by-step explanation:

12+23=35

67+10=77

19+60=79

Now let's add all three numbers

35+77+79=191

Hope this helps!

Plz answer rn nmmmm ASAP!!

Answers

Answer:

C

Step-by-step explanation:

At 7 P.M., a burning candle is 16 inches tall. At 9:30 P.M., the candle is only 3.5 inches tall. At what rate is the height of the candle decreasing?


Answers

Answer: 5 inches per hour or 2.5 inches per half an hour

Step-by-step explanation:

Amount of Time Passed: 2 hours 30 minutes

Difference in Candle Height: 12.5 inches

12.5 / 2.5 = 5 inches

5 inches per hour or 2.5 inches per half an hour

If it is incorrect, please let me know.

What is the area of the square?



32 square units
64 square units
24 square units
16 square units

Answers

Answer is 64 square units

Answer:

64 square units

Step-by-step explanation:

All you have to do is multiply 8 by 8 to get 64.

my Christmas present to you​

Answers

Answer:

i can help u if u need help

Step-by-step explanation:

Answer:

it's not Christmas but OK.

Step-by-step explanation:

btw thx!!

The population of the bacteria triples each hour. Initially, there are 20 bacteria in the lab. Find the number of bacteria at the end of 5th hour
1620
4500
4860
5000

Answers

Answer:

4860

Step-by-step explanation:

Get the product of twenty and three, then multiply that to three again, repeat this for three more times.

Answer the ones you want to. Answer at least one.

Have no idea how to do this. Please help I beg you.

Answers

Answer:

I will answer one of them! Let's do... number 2.

Step-by-step explanation:

Conjecture: Each number increases by 5 each time.

1/5 divided by 2/15 as a mixed number

Answers

Answer: 1 1/2

Step-by-step explanation:

Step One: 3 / 2 = 1.5000 = 1

Step Two: 3 - (2 x 1) = 1

Step Three: 1 1/2

Please mark me branliest

3/2 I think
Hope this helps

1. Find the total of $18.93 with a 4.5% sales tax. *
$19.73
$38.66
$19.78
$38.71

Answers

Answer:

$19.78

Step-by-step explanation:

0.045 X 18.93 = 0.85185

0.85185 + 18.93 = 19.78

Plot the value(s) on the number line where this function is equal to zero: fx) = (x + 5)(x - 1).​

Answers

Answer:

x = - 5, x = 1

Step-by-step explanation:

let f(x) = 0 , that is

(x + 5)(x - 1) = 0

Equate each factor to zero and solve for x

x + 5 = 0 ⇒ x = - 5

x - 1 = 0 ⇒ x = 1

Plot the points - 5 and 1 on the number line

Find the slope and the y-intercept of the equation below:

1. 4x-3y=12
2. 2y=6x-12

if you can put the step please do so. Tysm.

Answers

Answer:

m = 4/3; b = -4m = 3; b = -6

Step-by-step explanation:

In each case, solve for y. You do this by getting the y-term by itself, then dividing by the coefficient of y.

1.

  -3y = -4x +12 . . . . . subtract 4x

  y = 4/3x -4 . . . . . . . divide by -3

The slope is 4/3; the y-intercept is -4.

__

2.

  y = 3x -6 . . . . . . divide by 2

The slope is 3; the y-intercept is -6.

_____

Additional comment

Whatever you do to one side of the equation, you must also do to the other side. When we say "subtract 4x", that means 4x is subtracted from both sides of the equation. The reason for doing that in the first equation is to eliminate the 4x term from the left side.

(Sometimes, you may see operations described as "move ...". There is no property of equality called "move." There are addition, subtraction, multiplication, division, and substitution properties of equality. Any equation solving process will make use of one or more of these.)

mai has 36$ to spend on movie tickets each movie ticket cost 4.50$ how many ticket can she buy multiplication problem

Answers

Answer:

8

Step-by-step explanation:

Mai has $36 and each movie ticket is $4.50.

You wanna divide 36 by 4.50 to find out how much tickets she can purchase which is 8.

Identify the center and radius of the circle (x – 5)^2 + (y+1)^2 = 4.
²
O A. Center: (5,-1), r= 4
O B. Center: (-5,1), r = 4
C. Center: (5, -1), r= 2
O D. Center: (-5,1),r= 2

Answers

Answer:

The answer is C.

Step-by-step explanation:

The equation of a circle, centre (a, b), radius r is given by (x - a)² + (y - b)² = r².

Determine the slope of the line that passes through pair of points: (-4, 11) and (1,-9)

Answers

Answer:

rise/run= -20/5= -4/1=-4 slope

or you sound use the slope formula (y2-y1)/(x2-x1)

(-9-11)/(1+4)

-20/5

-4

Hope this helps

Hard work problem please help me find the sum

Answers

-3 + -2 + -4 = -9

the total is -9

What is the result when the number 15 is increased by 20%

Answers

Answer:

75

Step-by-step explanation:

15 divided by .20 = 75

75
20% is .20 and
15/.20 = 75 therefore your answer should be 75

maths question algebra

Answers

Answer:

x = ± [tex]\sqrt{\frac{7y+8}{5} }[/tex]

Step-by-step explanation:

5x² - 3y = 4y + 8 ( add 3y to both sides )

5x² = 7y + 8 ( divide both sides by 5 )

x² = [tex]\frac{7y+8}{5}[/tex] ( take square root of both sides )

x = ± [tex]\sqrt{\frac{7y+8}{5} }[/tex]

Solve for x.
2x + 20=2x - 4
+
x = [?]
Enter

Answers

Answer:

x=24

Step-by-step explanation:

2x+20=2x-4+x

Subtract 2x from both sides

2x+20-2x=2x-4+x-2x

Simplify

20=-4+x

Add 4 to both sides

24=x

Switch sides

x=24

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