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12345 [234]
2 years ago
10

7x^2 - 16x - 15please help find the factored form​

Mathematics
1 answer:
myrzilka [38]2 years ago
8 0

Step-by-step explanation:

7x^×2-16x-15

14x^-16x-15

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Is (2,-2) a solution to the following system of equations?
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Answer:

yes?

Step-by-step explanation:

is this a true or false question

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3 years ago
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highland has a population of 12,200. Its population been increasing at a rate of 300 poeple per year. Lowville has a population
Amanda [17]

Answer:

  • 16 years

Step-by-step explanation:

<u>Equation for the Highland population</u>

  • 12200 + 300x

<u>Equation for the Lowville population</u>

  • 21000 -250x

<u>Populations are equal after</u>

  • 12200 + 300x = 21000 - 250x
  • 300x + 250x = 21000 - 12200
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3 years ago
A bench is located where the shadows casted by a 16 foot tall flagpole and 40-foot tall tree meet. If the bench is 18 feet from
saveliy_v [14]

Answer:

<em>The distance from the flagpole to the tree is 27 ft</em>

Step-by-step explanation:

<u>Similar Triangles</u>

Since the elevation angle from which the trees cast their shadows has the same measure and given the tree and the flagpole and the ground form right angles, both triangles are similar.

Similar triangles have their corresponding side lengths proportional. The ratio between the distances from the bench to the tree and flagpole and their heights is constant, i.e.:

\displaystyle \frac{16}{18}=\frac{40}{x}

Where x is the distance from the bench to the tree.

Solving for x:

\displaystyle x=40\cdot \frac{18}{16}

x = 45 feet

Thus the distance from the flagpole to the tree is 45 - 18 = 27 feet

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2 years ago
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krok68 [10]

Answer:

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Step-by-step explanation:

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((36/2)/(3×9))/2

((36/2)/(3×9))/2 = 36/(3×9×2×2):

36/(3×9×2×2)

36/9 = (9×4)/9 = 4:

4/(3×2×2)

4/2 = (2×2)/2 = 2:

2/(3×2)

2/(3×2) = 2/2×1/3 = 1/3:

Answer: 1/3

6 0
3 years ago
Read 2 more answers
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