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Ronch [10]
3 years ago
15

Solve each quadratic equation. (2x-1)(x+7)=1

Mathematics
1 answer:
Galina-37 [17]3 years ago
3 0
So you foil out the problem and get
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a) >
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Slope Find Value of Zero
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Answer:

(3, -6) and (7, -6)

Step-by-step explanation:

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3 years ago
What is the mean of -9,-5,-4,-4,-2,0,1,2,3,5
IrinaK [193]

Answer: - 1.3

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(1) Take the sum of -9, -5, -4, -4, -2, 0, 1, 2, 3, 5 and simplify it to -13

(2) Count the number of terms in the data set.

{-9, -5, -4, -4, -2, 0, 1, 2, 3, 5}

{1, 2, 3, 4, 5, 6, 7, 8, 9, 10} - The number of terms in the data set is <u>10.</u>  

(3) Divide the sum by the number of terms and simplify.

-13 / 10 = -1.3 (simplified)

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3 years ago
Does the given ordered pair, (-3,5/2) satisfies the given equation. 5x-2y=5 ?
anzhelika [568]

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No, it does not.

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