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denis23 [38]
3 years ago
5

-1/6 + ( -3/7) = A. -25/42 B. -4/13 C. 11/42 D. 2/13

Mathematics
2 answers:
alekssr [168]3 years ago
6 0

Answer: the anwser is A

Step-by-step explanation:

I used a calculator lol

spin [16.1K]3 years ago
3 0

Answer:

C: 11/42

Step-by-step explanation:

-1/6 + (-3/7)

This can also be written as -1/6 + 3/7

Find the LCD: 42

Divide 42 by the original denominators: 42 / 6 = 7. 42 / 7 = 6

Multiply the numerators by the quotient: -1 x 7 = -7. 3 x 6 = 18

New equation: -7/42 + 18/42

Focus on the numerators: -7 + 18 = 11

Put it all together: 11/42

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Answer: $ 48


Explanation:

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Step-by-step explanation:

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4 years ago
I need help desperately! Could someone explain this math concept for me please?
Nana76 [90]

The inequality that represents the range of k so that inequality 1 has real solution is -3 < k < 5

<h3>How to determine the range?</h3>

<u>Inequality 1</u>

x^2 + (k + 1)x + k + 4 > 0

The discriminant is calculated using

D = b^2 - 4ac

So, we have:

D = (k + 1)^2 - 4 * 1 * (k + 4)

Evaluate

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This gives

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Factorize the equation

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The inequality cannot be read, because of the image quality

Read more about discriminant at:

brainly.com/question/7784687

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