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garri49 [273]
3 years ago
6

Find the area of a circle with the given equation. (x-7)2+(y + 9)2 =137

Mathematics
1 answer:
Korolek [52]3 years ago
7 0

Answer:  137π

The usual formula for a circle centered at (a,b), with radius r,

(x - a)² + (y - b)² = r²

The area of the circle is πr², so 137π

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worty [1.4K]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
A telemarketer has 4 hours a day to call people for a survey. It takes 3 seconds to dial the number and each call takes 2 minute
schepotkina [342]

The telemarketer can make 117 calls per day

<em><u>Solution:</u></em>

Given that a telemarketer has 4 hours a day to call people for a survey

It takes 3 seconds to dial the number and each call takes 2 minutes

<u><em>To find: Number of calls made in 1 day</em></u>

From given statement,

Total number of hours = 4 hours

<em><u>Convert 4 hours to minutes</u></em>

1 hour = 60 minutes

4 hours = 4 x 60 = 240 minutes

Time taken to dial the number = 3 seconds

<em><u>Convert 3 seconds to minutes</u></em>

Use the following conversion factor

1 \text{ second } = \frac{1}{60} \text{ minute }

3 \text{ second } = 3 \times \frac{1}{60} \text{ minute } = 0.05 \text{ minute }

Thus,

Time taken to dial the number = 0.05 minute

Time taken for call = 2 minutes

Total number of time = 240 minutes

Let "x" be the number of calls made per day

Total number of time = x(Time taken to dial the number + Time taken for call)

Therefore, we get

240 minutes = x(0.05 minute + 2 minute)

240 = x(2.05)

2.05x = 240

x = \frac{240}{2.05}

x = 117

Thus 117 calls can be per day

3 0
3 years ago
A spring of original length 25 cm was stretched to a new length of 28 cm when a force of 12 n was applied. what would its new le
OLga [1]

Answer:

A. 31 cm

Step-by-step explanation:

Hopefully its right :)

4 0
3 years ago
Write the expression 12^-2 in simplest form.
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Answer:

Step-by-step explanation:

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8 0
2 years ago
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Neporo4naja [7]
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