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oksian1 [2.3K]
3 years ago
8

Subtract the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers

of x. Subtract: 3x 2 -7x + 4 from 5x 2 - 3x + 8.
Mathematics
2 answers:
nadezda [96]3 years ago
8 0
-2x^2-4x-4 should be your answer.
Svetach [21]3 years ago
8 0

Answer:

2x^2 +4x +4

Step-by-step explanation:

Subtract: 3x 2 -7x + 4 from 5x 2 - 3x + 8.

5x^2 -3x+8 - (3x^2 -7x+4)

To subtract the second polynomial we multiply negative sign inside the second parenthesis.

Change the sign of each term when we multiply negative inside second parenthesis.

5x^2 -3x+8 - 3x^2 +7x-4

Now combine like terms

2x^2 +4x +4

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4 years ago
Charlie wants to buy new carpet for his living room floor the floor is in the shape of a rectangle its length is 15 feet and the
sdas [7]

Answer:

135 square ft.

Step-by-step explanation:

To solve this equation, you need to find the area of this rectangle. Area is always base x height, or in this case, length x width. Now you multply your length, 15', by your width, 9', to get your answer, 135 square feet. When you multiply two measurments of the same unit together, you get square (units), which simply means that you multiplied two of the same unit of measurment together.

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3 years ago
The legs of an isosceles trapezoid have lengths of 48 - 7x and x + 8. What is the length of one of the legs?
sdas [7]

Answer:

13 units

Step-by-step explanation:

The legs of an isosceles trapezoid are congruent, then

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8x = 40 ( divide both sides by 8 )

x = 5

Then

leg = x + 8 = 5 + 8 = 13

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3 years ago
What are two decimals equivalent to 9.1
Marizza181 [45]
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Answer:

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Step-by-step explanation:

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