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tekilochka [14]
3 years ago
8

Simplify the radical √-20

Mathematics
2 answers:
wel3 years ago
4 0

Answer:

2√5 ?

Step-by-step explanation:

Viefleur [7K]3 years ago
3 0

Answer:

\sqrt{-20} = 2\sqrt{-5}

You might be interested in
Determine whether 81a2 − 25z6 is a difference of two squares. If so, factor it. If not, explain why.
aev [14]

81 a² - 25 z^{6} is a difference of two squares and its factors are (9a + 5z³) and (9a - 5z³)

Step-by-step explanation:

The difference of two squares is a binomial of two terms each term is a square and the sign between the two terms is (-), its factorization is the product of two identical binomials with different middle signs

  • a² - b² is a difference of two squares
  • a² - b² = (a + b)(a - b)

∵ The binomial is 81 a² - 25 z^{6}

∵ \sqrt{81} = 9

∵ \sqrt{a^{2} } = a

∴ \sqrt{81a^{2}}=9a

∵ \sqrt{25} = 5

∵ \sqrt{z^{6}} = z³

∴ \sqrt{25z^{6}}=5z^{3}

- The two terms have square root

∵ The sign between them is (-)

∴ 81 a² - 25 z^{6}  is a difference of two squares

∵ Its factorization is two identical brackets with different

   middle signs

∵ 81 a² = 9a × 9a

∵ 25 z^{6} = 5z³ × 5z³

- The terms of the two brackets are 9a and 5z³

∴ 81 a² - 25 z^{6} = (9a + 5z³)(9a - 5z³)

81 a² - 25 z^{6} is a difference of two squares and its factors are (9a + 5z³) and (9a - 5z³)

Learn more:

You can learn more about the difference of two squares in brainly.com/question/1414397

#LearnwithBrainly

7 0
3 years ago
Jordan Michael runs a basketball camp. A group of randomly selected camp participants were asked to give their shirt size. The t
mihalych1998 [28]

Answer: 77

Step-by-step explanation:

6 0
3 years ago
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The railroad company wants to sell $8,134 in tickets. If each ticket costs $7, how many
Licemer1 [7]

Answer:

1162 tickets will need to be sold

Step-by-step explanation:

8134 / 7 = 1,162

8 0
2 years ago
Find f'(x) for f(x) = cos^2(3x^3).
garik1379 [7]

f(x) = \cos^2(3x^3)\\f'(x) = \frac{d}{dx}[\cos^2(3x^3)]\\= 2\cos(3x^3) \cdot \frac{d}{dx}[cos(3x^3)]\\= 2\cos(3x^3) \cdot (-\sin(3x^3)) \cdot \frac{d}{dx}[3x^3]\\= 2\cos(3x^3) \cdot (-\sin(3x^3)) \cdot 9x^2\\= -18x^2\cos(3x^3)\sin(3x^3)

6 0
2 years ago
Write a real-life situation that can be modeled by the expression 1 1/3 x 2.
FromTheMoon [43]
You have 11 ounces of candy per package you got to split 3 ways you have 2 packages how much candy does each person get?

I came up with this...good luck


3 0
3 years ago
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