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serious [3.7K]
4 years ago
12

ASAP someone help; Assume people around a table could only reach 1.5m. Calculate the area that could be reached. Show your worki

ng

Mathematics
1 answer:
Arturiano [62]4 years ago
4 0
Given:
Circle radius = 2.75 m
People's reach = 1.5m

Get the area of the circle.
A = π r² ⇒ 3.14 * (2.75m)² ⇒ 3.14 * 7.5625m² = 23.75 m²

Get the area of the inner circle:
r = 2.75 m - 1.5 m = 1.25 m

A = 3.14 * (1.25m)² ⇒ 3.14 * 1.5625 m² = 4.91 m² 

Subtract the area of the inner circle from the total area to get the area that people can reach.

A = 23.75 m² - 4.91 m² = 18.84 m²
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Bond [772]

Answer:

k = 16 , (4, 0 )

Step-by-step explanation:

Using the discriminant Δ = b² - 4ac

• b² - 4ac = 0 , then 2 real and equal roots

Here

y = x² - 8x + k

with a = 1, b = - 8, c = k , then

b² - 4ac

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64 - 4k = 0 ( subtract 64 from both sides )

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Then

y = x² - 8x + 16

Equate to zero to find the root

x² - 8x + 16 = 0 ← left side is a perfect square

(x - 4)² = 0

x - 4 = 0 ( add 4 to both sides )

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3 years ago
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Delvig [45]
The filled in dot means inclusive and the hallow dot means exclusive. For an inequality, inclusive will mean it can be equal to that number as well as being less or greater than. Exclusive means the opposite.
In terms of x, the number line shows that -2 <= x < 2.

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4 years ago
Please help me it’s due tomorrow and I really need help
Anna35 [415]

Answer:

5 \frac{1}{3}, 10 \frac{2}{3}

Step-by-step explanation:

There is a common ratio r between consecutive terms, that is

\frac{2}{3} ÷ \frac{1}{3} = 1 \frac{1}{3} ÷ \frac{2}{3} = 2 \frac{2}{3} ÷ 1 \frac{1}{3} = 2

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a₆ = \frac{16}{3} × 2 = \frac{32}{3} = 10 \frac{2}{3}

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3 years ago
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Answer:

the answer is 210

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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