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Pani-rosa [81]
4 years ago
9

Sheila is a wildlife biologist. At the beginning of each year, she tracks the wild turkey and white-tail deer population in the

game reserve where she works. At the first year Sheila counted 121212 wild turkeys, and their number increases by approximately 40\%40%40, percent each year. At the first year Sheila counted 181818 white-tail deer, and their number increases by 101010 additional deer per year.
Mathematics
2 answers:
Alexxx [7]4 years ago
6 0

Answer:

total population after a year ≅ 452525

Step-by-step explanation:

Population of wild turkey after a year = 1.4 x 121212 = 169696.8

Population of white-tail deer after a year = 181818 + 101010 = 282828

Hence total population after a year = 169696.8 + 282828 = 452524.8 ≅ 452525

Ann [662]4 years ago
3 0

Answer:

7th year

Step-by-step explanation:

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Type a digit that makes this statement true.<br> 7,176,260 is divisible by 3.<br> Submit
Margarita [4]

Answer:

1, 4 or 7

Step-by-step explanation:

The divisibility rule/shortcut for 3 is that the sum of its digits is divisible by 3. So, you currently have 29 (7+1+7+6+2+6+0), and you have to make that number divisible by 3.

adding 1 gets you 30, which we know is divisible by 3.

then, instead of trying every digit, we can note that

30 , 33 , 36 , 39 ....

are divisible by 3.

But the most we can add to the sum of 29 is 9 (because that is the highest digit possible)--so numbers above 38 are irrelevant

so, we want to find out if we can make 29 into 30, 33, or 36

adding 1 to 29 = 30

adding 4 to 29 = 33

adding 7 to 29 = 36

So, by making the first digit 1 , 4 , or 7, you make the number divisible by 3 (making the sentence true)

8 0
2 years ago
Read 2 more answers
The radius of a circle is 10 meters. What is the area of a sector bounded by a 90 degree arc?Give the exact answer in simplest f
Wittaler [7]

Since we know a circle has 360 degrees, the sector bounded by a 90 degree arc will be a quarter of circle (360/90 = 4). Then, to calculate the area of that sector, we can calculate the total area of the circle of radius 10, and then divide it by 4.

The area of a cirlce of radius r is:

A=\pi r^2

Then, the area of the sector would be:

A_s=\frac{\pi r^2}{4}A_s=\frac{\pi(10m)^2}{4}=\frac{100\pi}{4}m^2A_s=25\pi m^2

4 0
1 year ago
Prove that sin(Π÷14)sin(3Π÷14)sin(5Π÷14)=2​
Oxana [17]

Answer:

The correct prove will be:

sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14}) = \frac{1}{8}

Step-by-step explanation:

    sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})

            Multiply and Divide by 2cos(\frac{\pi }{14})

= \frac{2sin(\frac{\pi }{14})cos(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14})}{2cos(\frac{\pi }{14})}

⇒ Let \frac{\pi }{14} = Ф  and 7Ф = \frac{\pi }{2}

= sin2Ф sin3Ф sin5Ф ÷ 2cosФ

= 1/2(2sin2Фsin5Ф)sin3Ф ÷ 2cosФ

= (cos3Ф - cos7Ф) sin3Ф ÷ 4cosФ

= 1/2(2cos3Ф sin3Ф) ÷ 4cosФ               ∵cos7Ф = 0      

= sin6Ф ÷ 8cosФ

= sin(7Ф - Ф) ÷ 8cosФ                              

= (sin7ФcosФ - cos7ФsinФ) ÷ 8cosФ      ∵sin7Ф = 1  

= cosФ ÷ 8cosФ

= 1/8

Hence, The correct prove will be:

sin(\frac{\pi }{14})sin(\frac{3\pi }{14})sin(\frac{5\pi }{14}) = \frac{1}{8}

Keywords: prove, sinФ, cosФ

Learn more about trigonometric functions from brainly.com/question/7331447

#learnwithBrainly

4 0
3 years ago
Fred washes a car in 6 minutes, Carl washes a car in 8 minutes. If they wash a car together then how long will it take?
kondor19780726 [428]

Based on the problem Carl will complete...

1/6 of the job per minute.

Fred will complete 1/8 of the job per minute.

Together they will complete... 1/6+1/8 of the job per minute.

That would be 7/24.

How long will that take?

1/(7/24)=24/7=3 3/7

It will take 3 and 3/7 minutes to finish washing the car.

8 0
3 years ago
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Sunny_sXe [5.5K]
Your best answer is C.

Round up 19 bags they ordered to 20, then multiply by 12 to get 240 apples they ordered.

Round down the 42 to 40. 40 x 8 = 320 apples sold.

200 to start + 240 ordered = 440 apples
440-320 = 120
5 0
3 years ago
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