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Debora [2.8K]
3 years ago
9

Which of the following is a complex number? 0 -7 O 2+√3 O 4 + 91

Mathematics
1 answer:
aivan3 [116]3 years ago
5 0
The second one because it has a square root symbol and the other ones are all numbers whole numbers
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( 7x + 1/2) + ( 7x - 7 and 1/2) Simplify
pishuonlain [190]

Answer:

The answer will be 7(2x - 1)

Step-by-step explanation:

1) Convert 7 and 1/2 to improper fraction. Use this rule: a b/c = ac + b/c

7x +  \frac{1}{2}  + 7x -  \frac{7 \times 2 + 1}{2}

2) Simplify 7 × 2 to 14 .

7x +  \frac{1}{2}  + 7x  -  \frac{14 + 1}{2}

3) Simplify 14 + 1 to 15.

7x +  \frac{1}{2}  + 7x -  \frac{15}{2}

4) Collect like terms.

(7x + 7x) + ( \frac{1}{2}  -  \frac{15}{2} )

5) simplify.

14x - 7

6) Factor out the common term 7.

7(2x - 1)

Therefor, the answer is 7( 2x - 1 ).

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2 years ago
What is $96 spent in 4 hours written as a unit rate in minutes​
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3 years ago
Why is Old Alabama Town important to the south
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Because it shows how Alabamians lived in 19th to the mid 20th century, and buildings that were safe from destruction.
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2 years ago
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Answer:

x int(-7.5, 0)

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Step-by-step explanation:

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Answer:

A triangle is 180 degrees. Imagine that two angles would be given as maybe 89 and 30 degrees. With these two angles already given you can find the last third angle by adding the 2 given angles and subtracting it from 180. There fore it would look like 180-119=61. 61 would be your unknown angle degree.

<u>If you meant something else please comment I will help you more.</u>

7 0
2 years ago
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