All categories

3 years ago

Pls help me get full marks

Mathematics

2 answers:

soldier1979 [14.2K]3 years ago

7 0

Answer:

A is smaller

Step-by-step explanation:

Container A

A = 2π·r·h + 2π·r²

= 2π·r(h + r)

r = d/2 = 54mm/2 = 27 mm

h = 4d = 4·54mm = 216 mm

= 2·3.14·27(216 + 27)

= 169.56×243

= 41203.08 mm²

Container B

A = 4·l·h + 2·l²

l = 2d = 2·54mm = 108 mm

h = d = 54 mm

= 4·108·54 + 2·11664

= 23328 + 23328

= 46656 mm²

wlad13 [49]3 years ago

5 0

Answer:

A is smaller

Step-by-step explanation:

Radius = 54/2 = 27

Cylinder:

SA = 2×3.15×27² + 2(3.14×27×(4×54))

= 41203.08 mm²

Cuboid:

SA = 2[(2×54)²] + 4[54×(2×54)]

= 46656 mm²

You might be interested in

Its Estemeited dum dums

weeeeeb [17]

Answer:

wow thats mean

Step-by-step explanation:

7 0

3 years ago

7th grade math , I’ll give brainliest

Dennis_Churaev [7]

25 X 8 = 200

500 - 200 = 300

So if you have 8 weeks and spend 25 dollars a week then you would have $300 left over at the end of the 8 weeks.

Hope this helps Plz mark brainliest

5 0

3 years ago

Read 2 more answers

To finance a bridge costing $94,500, the state contributed twice as much as the county and the county contributed twice as much

bearhunter [10]

The city contributed $13,500; the county contributed $27,000; and the state contributed $54,000.

Let x be the amount the city contributes. Since the county contributes twice as much as the city, the county's amount is 2x. Since the state contributes twice as much as the county, the state's amount is 2(2x) = 4x.

They total 94,500:
x+2x+4x = 94500
7x = 94500

Divide both sides by 7:
x = 13500
2x = 27000
4x = 54000

5 0

3 years ago

What is 5 3/20 as a decimal?

Marrrta [24]

5 3/20 = 5.15 <=====

6 0

3 years ago

On a coordinate plane, a dashed straight line with negative slope goes through (0, 1) and (2, negative 2). Everything to the lef

charle [14.2K]

Answer:

$y$