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Karo-lina-s [1.5K]
3 years ago
7

How much material is needed to make the Nón Lá Vietnamese leaf hat? Round to the nearest tenth.

Mathematics
1 answer:
Rufina [12.5K]3 years ago
8 0

9514 1404 393

Answer:

  408.4 in²

Step-by-step explanation:

The lateral area of a cone is ...

  LA = 1/2πds . . . . . . . where d is the diameter and s is the slant height

Using the given dimensions, the area of the hat is ...

  LA = 1/2π(20 in)(13 in) = 130π in² ≈ 408.4 in²

The surface area is about 408.4 in².

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2 years ago
Read 2 more answers
Pls help me with this
alexgriva [62]

Answer:

x = 1.5

Step-by-step explanation:

Given

\frac{x}{2} \geq 0.75

\frac{x}{2} < 2.5

Required

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if \frac{x}{2} \geq 0.75, then

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Merging these results together; to give

1.5 \leq x < 5

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From the question, x is the smallest rational number; from the range above (1.5 \leq x < 5), the minimum value of x is 1.5 and 1.5 is a rational number;

Hence, x  = 1.5

4 0
3 years ago
Q4.A/Find the linearization L(x, y) of the function f(x, y) = (x + y + 2)² at p. = (1,2)
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Answer:

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