What is the surface area of the cylinder with height 4m and radius 2m? Round your answer to the nearest thousandth.

Answers

Answer 1

Answer:

50.265m^3

Step-by-step explanation:

because the formula for solving this problem is πr^2•height and then to finish solving it would have to be put into cubed as it's 3d


Related Questions

If a thumb is a finger, then three gloves and three shoes normally hold thirty-five fingers and toes

Answers

The given statement is false because the total number of toes and fingers are 30 and not 35.

How to identify true or false mathematical statements?

We are told that If a thumb is a finger, then three gloves and three shoes normally hold thirty-five fingers and toes.

Now, we know that a glove has space for 5 fingers. This means that three gloves would have a total of; 5 * 3 = 15 fingers

Now, a shoe has space for 5 toes. Thus;

Three shoes would have a total of; 5 * 3 = 15 toes

Thus;

Total fingers and toes = 15 + 15 = 30

Thus, we conclude that the given statement is false because the total number of toes and fingers are 30 and not 35.

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Please please help me!!

solve the system of equations by using the substitution method.
{ 4x - 5y = 19
{ y = x - 4

select the correct choice below and, if necessary, fill in the answer box to complete your choice.
A. The solution is __. (simplify your answer. Type an ordered pair.)
B. There are infinitely many solutions.
C. There is no solution.

Answers

Answer:

[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]

[tex]x=1,\:y=-3[/tex]

As the system of equations has only one solution, thus the solution consistent.

Step-by-step explanation:

Given the system of equations

4x - 5y = 19

y = x - 4

Solving the system of equations by using the substitution method.

[tex]\begin{bmatrix}4x-5y=19\\ y=x-4\end{bmatrix}[/tex]

[tex]\mathrm{Subsititute\:}y=x-4[/tex]

[tex]\begin{bmatrix}4x-5\left(x-4\right)=19\end{bmatrix}[/tex]

[tex]4x-5\left(x-4\right)=19[/tex]

[tex]-x+20=19[/tex]

isolate x for [tex]-x+20=19[/tex]

[tex]-x+20=19[/tex]

[tex]-x=-1[/tex]

Divide both sides by -1

[tex]\frac{-x}{-1}=\frac{-1}{-1}[/tex]

[tex]x=1[/tex]

[tex]\mathrm{For\:}y=x-4[/tex]

[tex]\mathrm{Subsititute\:}x=1[/tex]

[tex]y=1-4[/tex]

[tex]y=-3[/tex]

[tex]\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}[/tex]

[tex]x=1,\:y=-3[/tex]

As the system of equations has only one solution, thus the solution consistent.

Please remember that if the system of equations has only one solution, then it is an independent system of equations.

If he drank 80% of his water on his entire hike. How much did he drink? (Remember he brought 3 liters of water.)

p.s i have class

Answers

Answer:

2.4 Litres of water

Step-by-step explanation:

80% of (3 litres)

You can take 3 litres to be 3000 ml which is how I solved it.

OPTION 1_________

80/100 x 3000

=2400 or 2.4 litres

The same can go with not taking ml which you can just use litres

OPTION 2_________

80/100 x 3

=2.4 litres

I used the ml since I do not need the calculator for that one and it is faster to calculate.

Please help
Thanks In advance!

Answers

the answer will be 4

x=4.

the angle ABC is parallel to angle AEF

a wall is covered with 6 wood panels. each panel is a square with a side length of x feet. write an expression to represent the total area, in square feet, covered by the wood panels.

Answers

6x² is the total area, in square feet, covered by the wood panels.

What is area?

The region that an object's shape defines as its area. The area of a figure or any other two-dimensional geometric shape in a plane is how much space it occupies.

A wall is covered with 6 wood panels. Each panel is a square with a side length of "X" feet.

So based on this, we can say that The expression to represent the total area, in square feet,

So, the wood panels is to be considered as the 6 ×  x² = 6x²

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What is the standard fom of the equation of a circle whose diameter is 8 units and whose center is (2, -4)

Answers

Answer: (x-2) (squared) + (y+4) (squared) = 16

A bicycle with 28-inch diameter wheels is traveling at 25 mi/h. find the angular speed of the wheels in rad/min.

Answers

The angular speed of the bicycle's wheels that are traveling at 25 mi/h is 1885.7 rad/min

To solve this angular speed problem the formula and the procedure we will use is:

v = w * r

Where:

v = tangential velocityw = angular velocityr = radius

Information about the problem:

v = 25 mi/hd = 28 inchw = ?

Calculating the radius of the wheel, we have:

r = d/2

r = 28 inch/2

r = 14 inch

Converting the velocity unit from mi/h to inch/min, we get:

25 mi/h * (63360 inch / 1 mi) * (1h / 60 min) = 26400 inch/min

Applying the tangential velocity formula and isolating the angular velocity, we get:

v = w * r

w = v / r

w = 26400 inch/min / 14 inch

w = 1885.7 rad/min

What is angular speed?

When an object is in uniform circular motion, the angle described by the radius in each unit of time is known as angular speed. It is measured in units of (rad/s) (revolutions/s).

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how do you do this with decimals

Answers

Answer: x=102


Steps:

This is an isosceles triangle which mean 2 angles and 2 sides are congruent. In this case, the 3.3 sides corresponds to the 39 degree angle. This means that the other angle next to x angle is also 39 degrees.

39+39= 78

All the angles in the triangle needs to equal 180.

So subtract 78 from 180 to find the degree of x angle.

180-78= 102

Find the missing side, round to the nearest hundredth.

Answers


1st Triangle

Answer: 10.57

Steps:

Use the Pythagorean theorem:
a^2 + b^2 = c^2

5.2^2 + 9.2^2 =c^2

27.04 + 84.64 =c^2

111.68=c^2

c=10.57




2nd Triangle


Answer: 5.91


Steps:

Use Pythagorean theorem

2.7^2 + b^2 = 6.5^2

7.29 + b^2 = 42.25

b^2 = 34.96

b = 5.91

Answer:

1)10.57

2)5.91

Step-by-step explanation:

1)According to Pythagoras theorem

c=√a²+b²

=√5.2²+9.2²

=√27.04+84.64

=√111.68

=10.57

2) according to Pythagoras theorem

c²=a²+b²

6.5²=2.7²+b²

b²=6.5²-2.7²

b=√6.5²-2.7²

=√42.25-7.29

=√34.96

=5.91

how can a cosmetologist make his or her clients feel more secure about the image that they present?​

Answers

Answer:

They focus on the positive, by focusing on the positive the client feels better  about himself and it builds more confidence.

2 + 2x + 1 = 3 + 2 + 3
A one solution
B no solutions
C infinite solutions

Answers

Answer:

The correct answer is A. one solution.

The actual solution is x = 2.5.

Step-by-step explanation:

Here is the solution below:

Step 1: 2 + 2x + 1 = 3 + 2 + 3 <----- Here is the original problem.

Step 2: 2 - 2 + 2x + 1 - 1 = 8 - 2 - 1 <----- Subtract 1 and 2 from both sides.

Step 3: 2x = 5 <----- Simplify

Step 4: 2x/2 = 5/2  <---- Divide both sides by 2.

x = 2.5

Hope this helps! :D

Answer:

A. One Solution

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form: x=5/2

Decimal Form: x=2.5

Mixed Number Form: x=2 1/2

Write a linear function to describe the sequence. Explain your function. The first 5 terms of an arithmetic sequence are shown. 5, 2, –1, –4, –7 Write a linear function to describe the sequence. Explain your function.

Answers

Answer:

The linear function is;

Tn-1 = Tn + 3

What this mean is that to get the term before the present term, we add 3 to the present term

Step-by-step explanation:

Here, we want to write a liner function to describe the function

As we can see from the numbers listed,

the next term is simply obtained by deducting 3 from the previous term

We can write this as:

Tn-1 = Tn + 3

Where Tn is the next term and Tn-1 is the previous term

What the function is saying is that to get the term before the present term, we add 3 to the present term

Julio, Mandy, Angie, and Tyrone each set a goal to run 5 miles a week. This table shows how much of each runner's goal has been met.

Which list shows the numbers in the table in order from least to greatest?


0.27, 27, 35%, 35

27, 0.27, 35, 35%

0.27, 27, 35, 35%

27, 0.27, 35%, 35

Answers

Answer:

The sorted inputs in order from least to greatest is:

0.27 < 35% < 27 < 35

Step-by-step explanation:

Given the data

0.27, 27, 35%, 35

as

35% = 35/100=0.35

so Rewriting these inputs as decimals:

0.27, 27, 0.35, 35

Sorting this table by decimal values in order from least to greatest:

0.27    35%        27       35

0.27  <  0.35    <  27  <   35

Thus, the sorted inputs in order from least to greatest is:

0.27 < 35% < 27 < 35

Answer:

A

Step-by-step explanation:

0.27

2/7 = .28

35% = 0.35

3/5 = 0.6

WILL GIVE BRAINLEST HELPPPP

Answers

1 = 63
2 = 49
3 = 87
4 = 44
1- 54
2- 49
3- 87
4- 44

Please mark brainliest is correct!!

Solve the following inequality 18x<-25

Answers

Answer:

X = - 25/18 the answer is that

Answer:

x < -1[tex]\frac{7}{18}[/tex]

Step-by-step explanation:

18x < -25

Divide both sides by 18.

x < -25 ÷ 18

Evaluate.

x < -1[tex]\frac{7}{18}[/tex]

whats the answer giving brainliest answer

Answers

Answer:

C because its the only one that fits the question its asking. 12-6 8-4 4-2

Step-by-step explanation:

Tommy went to Taco World and bought 3 tacos and 4 burritos and spent $14.30. Burritos cost twice as
much as tacos. What was the cost of each taco and each burrito?

Answers

If Tommy spent $14.30 and the cost of burritos is twice as much as tacos then the cost of Taco is $1.30 and the cost of burrito is $2.60.

Given that Tommy spent $14.30 and the cost of burritos is twice as much as tacos .

We are required to find the cost of each tacos and burrito.

Suppose the cost of a taco be x and the cost of burrito be y.

Because the cost of burrito is twice as the cost of taco so y=2x.

Total expenditure by Tommy=3x+4*2x

14.30=3x+8x

11x=14.30

x=1.30

y=2*1.3

y=$2.60

Hence if Tommy spent $14.30 and the cost of burritos is twice as much as tacos then the cost of Taco is $1.30 and the cost of burrito is $2.60.

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Leeza deposited $1,600 in a savings account with a simple interest rate of 4.5%.
How much interest will Leeza earn after 6 years if she makes no additional deposits
or withdrawals?

Answers

her end amount will be $2,083.62
so 2,083.62-1,600= 483.62
she made 483.62 in interest

help asap!! really do not understand pleas explain!

Answers

describe how a spaceship sent back on earth

Subtract 5¢ from $4.10. Include the dollar sign and no spaces in your answer.

Answers

Answer:

4.05 c

Step-by-step explanation:

Answer:

$4.05

Step-by-step explanation:

$4.10 - $0.05 = $4.05

4(1-x)+2x=-3(x+1)
-) 7/5
-) -7/5
-) -3/4
-) -7

Answers

Answer:

the last one -) -7

Step-by-step explanation:

if this help you please give me a crown please

-7 ! Is the correct answer

The price of a TV rose from $350 to $371 in one
month. By what percent did the TV price rise?

Answers

6% increase


To calculate the percentage increase:
First: work out the difference (increase) between the two numbers you are comparing.

Increase = New Number - Original Number

Then: divide the increase by the original number and multiply the answer by 100.

% increase = Increase ÷ Original Number × 100.

If your answer is a negative number, then this is a percentage decrease.

Brad went to the mall and bought two sweaters and a pair of pants for $120. The next week he went to the mall and bought one sweater and two pairs of pants, at the same price as last week, for $120. The cost of one sweater is Response area .

Answers

Answer:

the cost of one sweater is $40

Step-by-step explanation:

The computation of the cost of the one sweater is shown below;

Let us assume the sweater be x

And, the pant be y

Now the equations are

2x + y = $120 ..............(1)

x + 2y = $120................(2)

Now multiply by 2 in equation 1

4x + 2y = $240

x + 2y = $120

3x = $120

x = $40

Hence, the cost of one sweater is $40

express this number in scientific notation 2,000,000​

Answers

Answer:

In scientific notation the number would be 2×10^6.

Hope it helps!

answer is 2 x 10^6 or 2e6

Is the equation linear or non-linear?

2x-2y=18

Answers

It’s a non-linear equation

Center middle school open the boys basketball team has had the same record every season the team has won a total of 84 games while losing only six games find the constant of a personality of winds to loses

Answers

The constant of Proportionality of wins to loses is 12.

Given, The total no. of games won by team is 84 and the team loses 6 games in the season.

When two or more parameters are directly or indirectly proportional to one another, their relationship is expressed as a = kb or a = k/b, where k indicates how the two variables are related. This k is known as the proportionality constant.

So, let a = Total no. of games won by team

and b = no. of games lost by team

So, proportionality constant (k) = Total no. of games won by team(a)  / no. of games lost by team(b)

k = 84/6

k = 12.

Hence, the proportionality constant is 12.

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Question 10(Multiple Choice Worth 1 poi
(01.04 LC)
Solve for x: 2x - 2> 4x + 6.

Answers

Answer:

Step-by-step explanation:

(2x - 2) - 2x > (4x + 6) - 2x

-2 > 2x + 6

(-2) - 6 > (2x + 6) - 6

-8 > 2x

-8/2 > (2x)/2

-4 > x

Answer:

x < - 4

Step-by-step explanation:

2x - 2 > 4x + 6 ( subtract 4x from both sides )

- 2x - 2 > 6 ( add 2 to both sides )

- 2x > 8

divide both sides by - 2, reversing the symbol as a result of dividing by a negative quantity.

x < - 4

25 points plus brainliest

Answers

Answer: 3x+4y=5

Step-by-step explanation:

[tex]\displaystyle\\y=-\frac{3}{4}x+\frac{5}{4} \\\\Multiply \ both\ parts\ of \ the\ equation\ by\ 4:\\\\(4)(y)=(-\frac{3}{4}x )(4)+(\frac{5}{4})(4)\\\\4y=-3x+5\\\\4y+3x=-3x+5+3x\\\\ 3x+4y=5[/tex]

PLS HELP ME ASAP I DONT HAVE TIME IT ALSO DETECTS IF ITS RIGHT OR WRONG

Answers

Answer:

5 hours

Step-by-step explanation:

Let x represent the amount of hours that ralph can do.

Let y represent the money he earned.

Let m represent how much he earns per hour.

Let b represent the initial fee

y=mx+b

y=33x + 24

189=33x+24

Solve for x:

189=33x+24

165 = 33x

x=5

Find a quadratic function that includes the set of values below.
(0,6) (2,12) (3,9)

The equation of the parabola is y= ____

Answers

The quadratic function that includes the set of values is y = -2x^2 + 7x + 6

How to find a quadratic function that includes the set of values?

The set of values is given as

(0,6) (2,12) (3,9)

A parabola is represented as

y = ax^2 + bx + c

At (0, 6), we have

6 = a(0)^2 + b(0) + c

This gives

c = 6

So, we have

y = ax^2 + bx + 6

At (2, 12), we have

12 = a(2)^2 + b(2) + 6

This gives

4a + 2b = 6

At (3, 9), we have

9 = a(3)^2 + b(3) + 6

This gives

9a + 3b = 3

Using a graphing tools, we have

a = -2 and b = 7

So, we have

y = -2x^2 + 7x + 6

Hence, the quadratic function that includes the set of values is y = -2x^2 + 7x + 6

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