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fredd [130]
4 years ago
12

One eyed, one horned, flying purple people eaters are an endangered species. Their population is decreasing at an annual rate of

34% due to the lack of marshmallows (that they love to place on their horn). There are currently 646 left. Write an exponential function representing the population in 10 years.
Mathematics
1 answer:
Bas_tet [7]4 years ago
7 0
P(t) = 646*0.66^t . . . . . exponential function for population

p(10) = 646*0.66^10 ≈ 10 . . . population in 10 years
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Answer:

x = -9

y = 2

Step-by-step explanation:

x + y = -7   then x = -y - 7

-x + 4y = 17

substitute for x:

-(-y - 7) + 4y = 17

reduce:

5y = 10

y = 2

x = -2 - 7

x = -9

check:

-9 + 2 = -7

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3 years ago
When rope is selling at $.10 a foot, how many feet can you buy for sixty cents?
PSYCHO15rus [73]
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Ava bought some pens for $ 2 $ 2 each and some pencils for $ 1 $ 1 each. She bought 3 3 more pens than pencils and spent a total
zalisa [80]

Answer:

 Number pencils Ava bought = 2

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 Let the number of pen be a and number of pencil be b.

  2 a + b = 12   -----------------------------------Equation 1

 We have, she bought 3 more pens than pencils

   a - b = 3   --------------------------------------  Equation 2

  Equation 1 +Equation 2,  

           2 a + b +  a - b = 12 + 3

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                   a = 5

   Substituting in  equation 2

                 5 - b = 3

                b = 2

    Number pencils Ava bought = 2

 

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3 years ago
What is the length of line segment s a? 1.89 ft 2.43 ft 3 ft 7 ft
Slav-nsk [51]

The ratio of the sides will be constant. Then the value of the length of line segment SA will be 3 ft.

The missing diagram is given below.

<h3>What is the triangle?</h3>

A triangle is a three-sided polygon with three angles. The angles of the triangle add up to 180 degrees.

The triangles ΔABC and ΔSBT are the similar triangles.

Then the ratio of the sides will be constant.

BS / SA = BT / TC

10 / SA = 9 / 2.7

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Then the value of the length of line segment SA will be 3 ft.

More about the triangle link is given below.

brainly.com/question/25813512

#SPJ1

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Which shape could be thought of as being created by stacking congruent polygons?
weqwewe [10]

Answer:

Rectangular prism

Step-by-step explanation:

Edge 2020

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