Mathematics College

the 4.1 m of concrete is made into the shape of a cylinder. The base has radios 0.5 metres. work out the height of the cylinder ( photo attached)

Answers

Answer 1

Answer:

5.22m

Step-by-step explanation:

Rearrange the formula - volume = π × r² × h:

h = volume ÷ (π × r²)

volume = 4.1m³r = 0.5

Plug in the numbers:

h = 4.1 ÷ (π × 0.5²)

h = 5.22028... ≈ 5.22m

Hope this helps!

Related Questions

In a group of 97 students, the number of students taking programming is twice the number of students taking math. There are 53 students taking exactly one of these subjects, and 15 are taking neither of these subjects. How many students are taking math? How many students are taking programming? In a group of 97 students, the number of students taking programming is twice the number of students taking math. There are 53 students taking exactly one of these subjects, and 15 are taking neither of these subjects. How many students are taking math? How many students are taking programming?

Answers

The number of student taking math is 37 while the number of students taking programming is 74

Universal set = 97

let

The number taking math = x

The number taking programming = 2x

The number of students that take exactly one subject = 53

The student taking neither of the subject = 15

The number of students taking only maths will be

x - n(m ∩ p)

The number of students taking only programming will be

2x - n(m ∩ p)

let

n(m ∩ p) = y

Therefore,

x - y + 2x - y = 53

3x - 2y = 53

Also,

97 = x + 2x - y + 15

3x - y = 82

Therefore,

3x - 2y = 53

3x - y = 82

-y -(-2y) = 82 - 53

y = 29

3x - 29 = 82

3x = 82 + 29

3x = 111

x = 111/3

x = 37

Finally,

number of students taking maths = 37

number of student taking programming = 37×2 = 74

Check similar problem on sets: https://brainly.com/question/16132324?referrer=searchResults

the correct written expression for: (9 x 5) + (24 - 9).

Answers

45 + 24 - 9

69 - 9

60

Answer:

Step-by-step explanation:

= 45+ 15

=60

297,060 ÷ 0.0004839 =

Answers

Answer:

613,887,166.76999

Step-by-step explanation:

hshsididodj bdnd

dbdbjdjd

nsbbdbd

bdbbdhd

Answer:

[tex]297,060 ÷ 0.0004839 =613887166.77[/tex]

The container that holds the water for the football team is
1/2
full. After pouring in 9 gallons of water, it is 4/5 full. How many gallons can the container hold?

Answers

Answer:

Step-by-step explanation:

nnnnnnnnnnbbbbbbbhhhhbjjjj

is 78.50 is the same as 78.5

Answers

Answer:

yes, 78.50 is the same as 78.5

Step-by-step explanation:

You can consider 78.50 as 78.5, cause we basically remove the 0 from it. The whole point is, they are both the same.

Hello there!

Yes, 78.50 is the same as 78.5 because you can remove the 0 and the numbers will be identical.

Hope this helps!

~Just a joyful teen

[tex]SilentNature\\(GraceRosalia)[/tex]

3 ice cream cones cost $ 8.25

At this rate , how much do 2 ice cream cones cost ?

Answers

Answer:

The cost of 2 icecream cones is $5.50. Given data: Price of 3 icecream cones is $8.25. 1 icecream come = $(8.25÷3) =$ 2.75.

Step-by-step explanation:

Answer:

5.50

Step-by-step explanation:

8.25 divided by 3 =2.75

Then take 2.75 and multiply it by 2 and you get your answer which is 5.50

A baseball game has a total

Answers

Answer:

The first statement is correct. only the team pitching has to make the 3 outs and once they do they switch positions

Step-by-step explanation:

the team pitching cannot score and once the batting team gets 3 outs then they switch positions, all the way until the end of the 9th inning

Which of the following is the graph of y=sqrd-x-3?

Answers

>> Answer

___________

[tex] \: [/tex]

y = [tex]\sqrt{-x - 3}[/tex]

graph in picture!

in a set of 5 numbers the average of two is 12 the average of the other 3 is 7 what is the average of all five numbers. (fraction or whole number)

Answers

Answer:

The average of all 5 numbers is 9

Step-by-step explanation:

Two of the numbers average 12. That means that their total is 2*12 = 24

Three of the other numbers average 7. That means that their total is 7*3 = 21

The total score for the 5 numbers is 24 + 21 = 45

The average for all 5 numbers is 45/5 = 9

Please answer this math riddle for me ASAP!!! please
I am a four-digit number. My first number has no use because the number would be the same without it. My second and third numbers are mirror images and my fourth number is half of my second number.

Answers

i think maybe 0693 this is just a guess though

Answer:

0884

Step-by-step explanation:

Answer fast please!!!!

Answers

Answer:

6z + 9

Step-by-step explanation:

distribute 3/4 by 8z to get 6z

distribute 3/4 by 12 to get 9

The Davis's drank 9 gal 1 qt of milk last month and 7 gal 2 qt this month. How much milk is that?

Answers

9 gallons + 7 gallons = 16 gallons

1 qt + 2qt = 3 qts

Total = 16 gallons and 3 qts.

1.0286 as a fraction

Answers

Answer:

1 143 /5000

Step-by-step explanation:

help and i ill give brainliest

Answers

Answer:

Step-by-step explanation:

f(16) = 7 + 16/4

= 7 + 4

= 11

pls help i am in k12
What is the slope of Car A’s graph? What does it mean?
(b) What is the slope of Car B’s table? What does it mean?

Answers

if you provide a picture i can help you ❤️

In a project there are 560hrs

Answers

Answer:

560hrs

Step-by-step explanation:

1day=24hrs

560hrs=(560÷24)days

=23.333days

What is the midpoint of the line segment from (5,-2) to (1,-5)?

Answers

To find the midpoint do, [(x1 + x2)/2], [(y1 + y2)/2]

5 + 1 = 6/2 = 3
-2 + -5 = -7/2 = -3.5

(3, -3.5)

Answer:

(3, -3.5)

Step-by-step explanation:

Using midpoint formula:

M = (x1 + x2/2 , y1 + y2/2)

By inserting the points you'll find the answer:

M = (5 + 1/2 , -2 + -5/2)

M = (6/2 , -7/2)

M = (3 , -3.5)

Please help out with this question

Answers

Step-by-step explanation:

5⁴+5³-6(5)²-5(5)-15

= 560

find perimeter and area

Answers

Answer:which one

Step-by-step explanation: which one 50

Please help. I will give brainly. Thank you

Answers

Answer:

a = 1.96

( 1.4 x 1.4)

b= 3750

c= 1/48

a= 2?

dont take my word on that but here.( An arithmetic sequence is any list of numbers that differ, from one to the next, by a constant amount. For example, the list of even numbers, 0,2,4,6,8… is an arithmetic sequence, because the difference from one number in the list to the next is always 2.[1] If you know you are working with an arithmetic sequence, you may be asked to find the very next term from a given list. You may also be asked to fill in a gap where a term is missing. Finally, you might want to know, for example, the 100th term, without actually writing out all 100 terms. A few simple steps can help you do any of these.

b= 3

c= 16-4a

( IM NOT SO CONFIDENT ABOUT 2)

a= 17

b= ( 2squared - 1)

Step-by-step explanation:

Answer:

thank you for the points bozzo

A pillar is fixed at one of the corners of a square meadow. The length of each edge of the meadow is 30m and the angle of elevation of the top of the pillar from the opposite comer is found 60°. Find the height of the pillar.
(A) 93.49 m (B) 83.48 m (C) 69.93 m (D) 73.48m

Answers

Answer:

D. 73.48 m.

Step-by-step explanation:

The diagonal distance across the meadow

= √(30^2+30^2)

= √1800

tan 60 = h / length of the diagonal (where h = height of the pillar).

h = √1800 * tan 60

= 73.48 m

The required height of the pillar if length of each edge of the meadow is 30m and the angle of elevation of 60 degrees is 73.48m

Angle of elevation and depression

The angle situated below the pillar is known as the angle of elevation

Determine the diagonal distance

The diagonal distance across the meadow is calculated using the Pythagoras theorem:

l = √(30^2+30^2)
l = √1800

Determine the required height of the pillar using the SOH CAH TOA

tan 60 = h/l

where h = height of the pillar

h = √1800 * tan 60

h = 73.48 m

Hence the required height of the pillar if length of each edge of the meadow is 30m and the angle of elevation of the top of the pillar from the opposite comer of 60 degrees is 73.48m

Learn more on angle of elevation here: https://brainly.com/question/25748640

F(x)=-(-1)^2+ 2(-1)-1

Answers

Answer:

f(x)=-4

I recommend this math site that could help you with these kind of problems

Step-by-step explanation:

A landscape supply business charges $30 to deliver mulch. The cost of the mulch is $23 per cubic yard.
Vrite and solve a linear equation to find the cost of having 8 cubic yards of mulch delivered to a site.

Answers

Answer:

209

Step-by-step explanation:

Sarah is buying some school clothes.
She found a sweater she likes that costs $18.85 and some t-shirts that are on sale for $4 each.
She got several t shirts of different colors and spent a total of $54.85.
Which equation describes the situation where x is the number of t shirts?

Answers

The answer is the first one

Simplify.
- 2x - } – 5x + i + x
-
х
-
17/3
-
3
+
10
х
Enter your answer in the box.
Do not use decimals in your answer.

Answers

Step-by-step explanation:

Evaluate:

-[-1⅘ ÷ 0.3(1.2)] - 5/6

⇛-[- 20/5 ÷ 0.3(1.2)]-5/6

⇛- [-20/5 ÷ 0.36] - 5/6

⇛-[-20/5 ÷ 36/100] - 5/6

Here I have changed in expression decimal point into fraction by putting 100 in Denominator.

⇛-[-20/5 × 100/36] - 5/6

⇛-[(-20 × 100)/(5×36)] - 5/6

⇛-[-2000/180]-5/6

Remember (-) × (-) = +.

⇛2000/180 - 5/6

Now, LCM of the denominator 6 and 180 is 180.

⇛(2000 - 150)/180

⇛1850/180

Now, reduce the fraction by extracting and cancaling out by 2.

⇛825/80

Again reduce the fraction by extracting and cancaling out by 5.

⇛165/16 Ans.

Hope this helps!!

If a = -3, find the value of (the 2 on b and c is squared) a) 2a b) a2 c) 3a2

Answers

Answer:

4, -4, 36

Step-by-step explanation:

a) a*2 = -2*-2 = 4

b) a^2 = -2^2 = -4

c) a*3^2= 3*-2^2 = -36

The sum of a number (m) and 15 is 80. Which equation shows this relationship

Answers

Answer:

m+15=80

Step-by-step explanation:

A number plus 15 = 80

m + 15 =80

A person's heart beats 200 times in 3 minutes. How many times will it beat in an hour (remember...60 minutes in an hour) ?

Answers

200 times / 3 minutes = x times / 60 minutes

3x = 12000

x = 4000 times in an hour

A person's heart will beat 4000 times in an hour.

Hope this helps!! :)

Answer: 4000 beats per hour

Step-by-step explanation:

200 beats X 60 minutes

3 minutes 1 hour

The term 'minutes' cancel out therefore you are left with beats per hour

200 x 60 = 12000 = 4000 beats per hour

3 3

Increase £2193.67 by 8.5% Give your answer rounded to 2 DP.

Answers

Answer:

£2380.13

Step-by-step explanation:

An increase of 8.5% is 100% + 8.5% = 108.5% = 1.085 , then

£2193.67 × 1.085 = £2380.13 ( to 2 dec. places )

Pls help due in 10 minutes

Answers

Answer:

here is your answer hope it helps you

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