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aleksley [76]
4 years ago
11

Find the zeros in the function 3x2+ 6 = 0

Mathematics
1 answer:
sattari [20]4 years ago
5 0

Answer:

x = ± i \sqrt{2}

Step-by-step explanation:

Given

3x² + 6 = 0 ( subtract 6 from both sides )

3x² = - 6 ( divide both sides by 3 )

x² = - 2 ( take the square root of both sides )

x = ± \sqrt{-2}

  = ± \sqrt{2(-1)}

  = ± (\sqrt{2} × \sqrt{-1}) → \sqrt{-1} = i

  = ± i \sqrt{2}

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2/3x2/3 <br> -1/3x3/5<br> solve then write in simplest form
kramer

Answer:

11/45 is the correct answer

Step-by-step explanation:

2/3 x 2/3 = 4/9

1/3 x 3/5 = 3/15

convert 4/9 - 3/15 common denominators

20/45 - 9/45 = 11/45

4 0
2 years ago
Find all factors for the following numbers and classify each number as prime or composite explain the classification of each as
Kisachek [45]
Prime numbers have only themselves and 1 as factors, like 7, and all other numbers are composite.
7 0
4 years ago
I need help me wit this
LenKa [72]

Answer:

C: (1, 2.5)

Step-by-step explanation:

The point is not exactly on 2 or 3 on the y axis. So it is at 2.5. and when you read a graph you need to look at it from x to y so it should be C: (1, 2.5).

4 0
3 years ago
Find a ratio equivalent to 15/60
Flauer [41]

Answer:

\large\boxed{\dfrac{15}{60}=\dfrac{5}{20}=\dfrac{3}{12}=\dfrac{1}{4}}

or

\large\boxed{\dfrac{15}{60}=\dfrac{30}{120}=\dfrac{45}{180}=\dfrac{60}{240}}

Step-by-step explanation:

Divide the numerator and the denominator by the same number:

\dfrac{15}{60}\\\\=\dfrac{15:5}{60:5}=\dfrac{3}{12}\\\\=\dfrac{15:3}{60:3}=\dfrac{5}{20}\\\\=\dfrac{15:15}{60:15}=\dfrac{1}{4}\\\vdots

or

Multiply the numerator and the denominator by the same number:

\dfrac{15}{60}\\\\=\dfrac{15\cdot2}{60\cdot2}=\dfrac{30}{120}\\\\=\dfrac{15\cdot3}{60\cdot3}=\dfrac{45}{180}\\\\=\dfrac{15\cdot4}{60\cdot4}=\dfrac{60}{240}\\\vdots

7 0
3 years ago
Read 2 more answers
What is the length of side BC? Round the answer to the nearest tenth.
Nostrana [21]

Answer:

The length of side BC is 2.8 units

Step-by-step explanation:

* Lets revise how to find the distance between two points

- If there are two points their coordinates are (x1 , y1) and (x2 , y2),

 then we can find the distance between them by this rule:

 d = √[(x2 - x1)² + (y2 - y1)²]

- Now lets solve the problem

∵ B = (3 , 3)

∵ C = (5 , 1)

- To find the length of BC use the rule of the distance above

- Let point B is (x1 , y1) and point C is (x2 , y2)

∵ x1 = 3 and x2 = 5

∵ y1 = 3 and y2 = 1

∴ BC = √[(5 - 3)² + (1 - 3)²]

∴ BC = √[(2)² + (-2)²]

∴ BC = √[4 + 4] = √8 = 2.8 units

* The length of side BC is 2.8 units

7 0
3 years ago
Read 2 more answers
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