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sasho [114]
4 years ago
15

1.What's the least common multiple of 9,12,15.

Mathematics
2 answers:
Keith_Richards [23]4 years ago
4 0
1. 180 
2. 140
3.126 (you meant least common multiple right?)

sergey [27]4 years ago
3 0
Its 180 
140 
and 126

Hope this helps :D

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If c is a real number and if 1 + i is a solution of the equation x^2 -2x + c = 0, what is the value of c?
Nana76 [90]

Answer:

c = 2

Step-by-step explanation:

Substitute x = 1 + i into the equation

(1 + i)² - 2(1 + i) + c = 0 ← distribute left side

1 + 2i + i² - 2 - 2i + c = 0 ( note that i² = - 1 )

1 + 2i - 1 - 2 - 2i + c = 0 ← collect like terms on left

- 2 + c = 0 ( add 2 to both sides )

c = 2

6 0
3 years ago
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Answer:

rational

Step-by-step explanation:

is not an Irrational number because it can be expressed as the quotient of two integers: 91÷ 1

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elena55 [62]

Answer:

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5 0
3 years ago
3x+-6+2 &gt; = 5x -8......can someone please solve this
Maksim231197 [3]

Answer:

x ≤ 2

Step-by-step explanation:

If you referencing ">=" as greater than or equal to, follow the solution below:

Solve:

3x - 6 + 2 ≥ 5x - 8

Combine like terms.

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Add 4 to both sides.

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Divide both sides by -2, while flipping the inequality as well since you're dividing by a negative number.

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Your answer would be x ≤ 2

6 0
3 years ago
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3 years ago
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