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Eva8 [605]
3 years ago
8

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

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3 years ago
Solve for the unknown variable 2/5(3x-4)=-4
Elanso [62]

Answer:

x = -2

Step-by-step explanation:

Solve for x:

(2 (3 x - 4))/5 = -4

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5/2×2/5 = (5×2)/(2×5):

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(5×2 (3 x - 4))/(2×5) = (2×5)/(2×5)×(3 x - 4) = 3 x - 4:

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5 (-2) = -10:

3 x - 4 = -10

Add 4 to both sides:

3 x + (4 - 4) = 4 - 10

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3 x = 4 - 10

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3 x = -6

Divide both sides of 3 x = -6 by 3:

(3 x)/3 = (-6)/3

3/3 = 1:

x = (-6)/3

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Answer:  x = -2

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3 years ago
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Mademuasel [1]

Answer:

(-3,5)

Step-by-step explanation:

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x = -3

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The solution of the system is (-3,5).

HELPPP PLZZ (I got you)

<u><em>Ace </em></u>

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