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kakasveta [241]
2 years ago
13

A controversial story comes out in the school newspaper. The number of students who have not heard about the story decreases at

a rate that is proportional at any time to the number of students who have not heard the story at that time. There were 900 students who had not heard the story initially, and the number of students is divided by 3 every 4 days. How many students have not heard the story after 7 days? Round to the nearest student. students Stuck?
Mathematics
1 answer:
denis23 [38]2 years ago
7 0

The bisector goes through photosynthesis causing the qordinates of the triangle to find the spectrum

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What is the perimeter P of △DEF to the nearest whole number?
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Answer:

perimeter of ΔDEF  ≈ 32

Step-by-step explanation:

To find the perimeter of the triangle, we will follow the steps below:

First, we will find the length of the side of the triangle DE and FF

To find the length DE, we will use the sine rule

angle E  = 49 degrees

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angle F = 42 degrees

f= DE =?

we can now insert the values into the formula

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cross-multiply

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which implies DE ≈8.866

We will now proceed to find side EF

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angle D + 91° = 180°

angle D= 180° - 91°

angle D = 89°

Using the sine rule to find the side EF

angle E = 49 degrees

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ange D = 89 degrees

d= EF = ?

we can now proceed to insert the values into the formula

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cross-multiply

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d= 10 sin 89°/sin 49°

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This implies that length EF = 13.248

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perimeter of ΔDEF  ≈ 32

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