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jenyasd209 [6]
4 years ago
6

Solve for x using the Quadratic Formula: x2 + 2x + 1 = 0 x equals negative b plus or minus the square root of b squared minus 4

times a times c, all over 2 times a
A.x = 2

B.x = 1

C.x = 0

D.x = −1
Mathematics
1 answer:
Jet001 [13]4 years ago
4 0

The answer is D. x= -1

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Which two whole numbers does 7 1/2 lie between
goldfiish [28.3K]

Hi there! :)

<u>Answer:</u>

7 1/2 lies between the two whole numbers <u>7</u> and <u>8</u>.


Step-by-step explanation:

"<u>Whole numbers</u>" are numbers without fractional or decimal parts and no negatives.

The first whole number <u>BEFORE</u> 7 1/2 is 7.

The first whole number <u>AFTER</u> 7 1/2 is 8.


There you go! I really hope this helped, if there's anything just let me know! :)

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3 years ago
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The area in square feet of a rectangular field is x - 70x + 1200. The width, in feet, is x - 30. What is the length, in feet?
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Step-by-step explanation:

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3 years ago
Evalute this expression: -4y + 7y - 10 + 3
Monica [59]

Answer:

3y-7

Step-by-step explanation:

-4y + 7y - 10 + 3

Combine like terms

-4y + 7y      - 10 + 3

3y              -7

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miv72 [106K]

Answer: 2 1/3

Explanation:

10 2/6 - 7 5/6

You can make both a fraction by multiplying the denominator by the whole number, and then adding the numerator to that number, and keeping the denominator the same. So, 10*6 = 60 and 60 + 2 = 62 and you keep the denominator as 6, which would make 62/6

7*6 = 42 and 42 + 5 = 47 so 7 5/6 becomes 47/6

10 2/6 is equivalent to 62/6

7 5/6 is equivalent to 47/6

This just makes it easier to look at.

Now you just work through the equation.

62/6 - 47/6 = 15/6

15/6 = 2 3/6 = 2 1/3

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3 years ago
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