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ratelena [41]
3 years ago
9

Which of the following statements best describes the location of −(−2) on a number line?

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
7 0

Answer:

A. It is 2 units to the right of 0.


Step by step explanation

The given number is - (-2)

When we multiply negative by negative, we get positive.

-(-) = +

Therefore, -(-2) = 2            [By applying the sign rule of multiplication]

2 is nothing but 2 units to the right from 0.

Hence the answer is A.  It is 2 units to the right of 0.


Hope you will understand the concept.

Thank you. :)

NeTakaya3 years ago
3 0
The answer is A because the negative on the outside if the parentheses cancels out the negative on the inside of the parentheses making it a positive and there is no other point given so it would be 2 units to the right if 0
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4b - 5 + (-a-3) i = 7 * 8i
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Answer:

Simplifying

4b + -5 + (-1a + -3) * i = 7 + -8i

Reorder the terms:

4b + -5 + (-3 + -1a) * i = 7 + -8i

Reorder the terms for easier multiplication:

4b + -5 + i(-3 + -1a) = 7 + -8i

4b + -5 + (-3 * i + -1a * i) = 7 + -8i

Reorder the terms:

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Reorder the terms:

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Solving

-5 + -1ai + 4b + -3i = 7 + -8i

Solving for variable 'a'.

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Add '5' to each side of the equation.

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Add '-4b' to each side of the equation.

-1ai + 4b + -4b + -3i = 12 + -4b + -8i

Combine like terms: 4b + -4b = 0

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Add '3i' to each side of the equation.

-1ai + -3i + 3i = 12 + -4b + -8i + 3i

Combine like terms: -3i + 3i = 0

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Simplifying

a = -12i-1 + 4bi-1 + 5

Reorder the terms:

a = 5 + 4bi-1 + -12i-1

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