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Blizzard [7]
3 years ago
7

Study the equation. y = x2 - 4x - 77 Write the equation in graphing form (vertex form).

Mathematics
1 answer:
Julli [10]3 years ago
4 0

Answer:

y=(x-2)^2-81

Step-by-step explanation:

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It would be to little because it would only be 30 cents
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Choose the best answer. The diagonals of a rectangle:
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C.) Are the same length

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No matter how long the rectangle is the diagonals always will measure the same length. Think about two sides of a square, they have to equal the same length because if they were not the same then the shape wouldn't be a square.

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The Magic Carpet charges $90 for installation and $9 per square yard of carpeting. The Carpeteria's installation price is $50 bu
Sophie [7]

Answer:

The cost of the carpet at Magic Carpet is: 90 + 9*(area of carpet)

The cost of carpet at Carpeteria is: 50 + 13*(area of carpet)

The algebraic expression for which the cost is the same is: 90 + 9*(area of carpet) = 50 + 13*(area of carpet)

The area of carpet for which the cost is the same is: 10 square yard

Step-by-step explanation:

6a) The cost for magic carpet:

This company charges a fixed fee and a price for each square yard of carpeting, therfore the expression for the cost is:

cost = 90 + 9*a

Where a is the area of carpet to be installed.

6)b) The cost for Capeteria:

This company also charges a fixed fee and a price for each square yard of carpeting, so the expression is:

cost = 50 + 13*a.

6) c) The algebraic expression for the cost to be the same in both stores:

90 + 9*a = 50 + 13*a

6) d) We need to solve the expression above for a:

50 + 13*a = 90 + 9*a

13*a - 9*a = 90 - 50

4*a = 40

a = 40/4 = 10

8 0
3 years ago
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Answer:

(-4, 0)  (8, 0)

Step-by-step explanation:

I did the K12 test.

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Which words in the sentence are the indirect objects?
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