Ask question

Ask question

All categories

3 years ago

13

a cylinder shaped barrel has a diameter of 3 feet and a height of 4.5 feet if the barrel is empty approximately how much water i

s needed to fill the barrel and I need work to be shown please and thank you

1 answer:

pav-90 [236]3 years ago

6 0

Volume of Cylindar:
$v = \pi {r}^{2} h$
the radius is half of the diameter

$v = \pi {1.5}^{2} 4.5$
v = 31.8

Option A.) 32 cu. ft.

You might be interested in

Actividad a desarrollar:<br>ayudaa plisss

shutvik [7]

Answer:

a) AUB = { 1 ,2 , 3, 4, 5, 6, 8, 10}

b) A∩ B = { 2, 4, 6 }

c) A-B = { 8 , 10}

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the sets

U = { 1,2,3,4,5,6,7,8,9,10}

A = { 2,4,6,8,10}

B = { 1,2,3,4,5,6}

AUB = { 2,4,6,8,10} U { 1,2,3,4,5,6}

AUB = { 1 ,2 , 3, 4, 5, 6, 8, 10}

<u><em>Step(ii):-</em></u>

A∩ B = { 2 ,4, 6, 8,10} ∩ { 1,2,3,4,5,6} = { 2, 4, 6 }

A-B = { 2,4,6,8,10} - { 1,2,3,4,5,6} = { 8 , 10}

<u><em>Final answer:-</em></u>

a) AUB = { 1 ,2 , 3, 4, 5, 6, 8, 10}

b) A∩ B = { 2, 4, 6 }

c) A-B = { 8 , 10}

5 0

3 years ago

Help me out not all just what you can

lara31 [8.8K]

9514 1404 393

Answer:

1e. 2t² +8t -6

2h. a² +2ab -3b²

3b. 8r +4

4b. 6x +4y -11

5b. e -3

Step-by-step explanation:

1e. Combine like terms.

(3t² +3t -6) +(-t² +5t) = t²(3 -1) +t(3 +5) -6

= 2t² +8t -6

__

2h. (2a² +3ab -4b²) -(a² +ab -b²)

Use the distributive property to eliminate parentheses. Note that all signs change in the second set of parentheses.

= 2a² +3ab -4b² -a² -ab +b² = a²(2 -1) +ab(3 -1) +b²(-4+1)

= a² +2ab -3b²

__

3b. The hash marks indicate sides of the same length. The perimeter is the sum of all side lengths.

P = (4r -2) +2(2r +3)

P = 4r -2 +4r +6 . . . . . . eliminate parentheses

P = 8r +4 . . . . . . . . . . . . combine like terms

__

4b. (3x +4y) +(5x -8) -(2x +3)

Note that the distributive property changes the sign of all terms in the last parentheses.

= 3x +4y +5x -8 -2x -3 . . . . eliminate parentheses

= x(3+5-2) +y(4) +(-8-3) . . . group like terms

= 6x +4y -11

__

5b.

Bill's age - Erin's age = (2e-3) -(e) = e -3

The difference in their ages is (e -3).

6 0

3 years ago

Line f has a slope of -3. What is the slope of the line that is perpendicular to line f?

Fynjy0 [20]

Answer:

1/3

Step-by-step explanation:

slope of line f (m) = -3

Slope of perpendicular line to f m1 = -1/m = -1/-3 = 1/3

6 0

3 years ago

PLEASE HELP ME!!

Grace [21]

Take the derivative:
g’(x) = 12x^3 - 24x^2

Set equal to zero and solve:
0 = 12x^3 - 24x^2
0 = 12x^2 (x - 2)

x = 0 or x = 2

Plug back into original
g(0) = 3(0^4) - 8(0^3)
g(0) = 0 - 0
g(0) = 0

g(2) = 3(2^2) - 8(2^3)
g(2) = 3(4) - 8(8)
g(2) = 12 - 64
g(2) = -52

There is an absolute max at (0,0) or when x = 0

5 0

2 years ago

Damon has 5 dimes and some nickles in his pocket what is the error 5n+50=1.20

Oxana [17]

The 50 is the error because cents are represented with decimals so it has to be .50

3 0

3 years ago