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AnnyKZ [126]
3 years ago
14

Need!!!!! Help!!!!!!

Mathematics
1 answer:
IrinaK [193]3 years ago
6 0

Answer:

Step-by-step explanation:

V = πr^2*h

radius = d/2 = 18/2 = 9

V = π(9)^2(16)= 4,071.5 cm^2

the solution is the first one

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What is 27+3÷ 3 +4-1+72.4-34.24+6-4+75÷5 <br> Answer this fast please!
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Answer:

86.16

Step-by-step explanation:

27+3÷ 3 +4-1+72.4-34.24+6-4+75÷5

PEMDAS

Multiply and divide first

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Replace these into the equation

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natulia [17]

Answer:

diagonal = = 12.8 inches (to the nearest tenth of an inch)

Step-by-step explanation:

As shown in the diagram attached to this solution:

Let the Length of the rectangular board = a

Let the width = b

Let the diagonal = d

where:

a = 10 inches

b = 8 inches

d = ?

Triangle ABC in the diagram is a right-angled triangle, therefore, applying Pythagoras theorem:

(hypotenuse)² = (Adjacent)² + (Opposite)²

d² = 10² + 8²

d² = 100 + 64

d² = 164

∴ d = √(164)

d = 12.806 inches

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<em>N:B Rounding off to the nearest tenth of an inch is the same as rounding off to 1 decimal place.</em>

3 0
3 years ago
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andrey2020 [161]

Answer:

i think its B

Step-by-step explanation:

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4 0
3 years ago
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