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Ket [755]
3 years ago
15

Arie's airplanes tracked the number of television advertisements they ran along with the corresponding airplane sales. this tabl

e displays how the number of advertisements relates to their total sales. the data can be modeled by a quadratic function.
what function best models the data?

Mathematics
1 answer:
GuDViN [60]3 years ago
8 0

Answer:

y = 7.8x² +317x +1

Step-by-step explanation:

Just finished the exam & I got it wrong...  copied the correct answer from the review.

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A rectangular field is eight times as long as it is wide. If the perimeter of the field is 900 feet, what are the dimensions of
Bas_tet [7]

Answer:

400 feet long

50 feet wide

Step-by-step explanation:

Length = l

Width = w

2l + 2w = 900

l = 8w

Plug the l from the bottom equation into the top equation

2 x 8w+ 2w = 900

16w = 900

Divide both sides by 16

16w/16 = 900/16

w = 50

The width is 50 feet

Now plug the new w into one of the original equations; we'll use the bottom one

l = 8(50)

l = 400

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3 years ago
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Nutka1998 [239]
The answer to (-8) + (-5) = -13
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Question 10 of 13
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Step-by-step explanation:

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Given the expression (8 + 6i) − (−2 + 7i), perform the indicated operation and write the answer in the form a + bi
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