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Scilla [17]
3 years ago
15

What is the simplified version of this?

7D" id="TexFormula1" title="\frac{\sqrt{2} }{3+\sqrt{5} }" alt="\frac{\sqrt{2} }{3+\sqrt{5} }" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
ExtremeBDS [4]3 years ago
3 0

Answer:

  • (3√2 - √10)/4

Step-by-step explanation:

<u>Simplify, rationalize the denominator</u>

  • √2/(3 + √5) =
  • √2(3 - √5)/(3 + √5) (3 - √5) =
  • (3√2 - √10)/(3² - 5) =
  • (3√2 - √10)/4
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6. All angles in the figure below are right angles. What is the area of the figure? (4 point)
jok3333 [9.3K]

Answer:

Area the figure = 45 - 9 = 36 units² ⇒ last answer

Step-by-step explanation:

<em>"I have added screenshot of the complete question as well as the diagram"</em>

All the angles of the figure are right angles

<u>From the attached figure:</u> <em>we can find the area of the figure by subtracting the area of the cutting part from the area of the rectangle of dimensions 9 units and 5 units</em>

∵ All the angles of the figure are right angles

∴ We can consider that the figure of dimensions 9 units and 5 units

  as a rectangle

∵ Area of any rectangle A = L × H , where L, H are the dimensions

  of the rectangle

∵ L = 9 units and H = 5 units

∴ Area of the rectangle = 9 × 5 = 45 units²

- The dimensions of the cutting part are 3 units and

  [9 - (2 + 4) = 9 - 6 = 3 units]

∴ The cutting part is a square

∵ Area any square = S², where S is the length of the side of the square

∵ S = 3 units

∴ The area of the cutting part = 3² = 9 units²

∵ Area of the figure = area rectangle - area square

∵ Area the rectangle = 45 units²

∴ Area the square = 9 unit²

∴ Area the figure = 45 - 9 = 36 units²

5 0
4 years ago
If one face of a cube has an area of 6 square inches, what is the surgace area of the entire cube?
postnew [5]
36 is the answer, there are 6 faces of a cube multiply it by 6.
3 0
3 years ago
A scientist wants to estimate the number of roads living near a lake.
QveST [7]
90 + 50 = 140
140 - 7 = 133
130 - 140
7 0
3 years ago
What does n^9/n^5 equal
vovangra [49]

Answer:

n^4

Step-by-step explanation:

Rule:

\dfrac{a^m}{a^n} = a^{m - n}

Your problem:

\dfrac{n^9}{n^5} = n^{9 - 5} = n^4

4 0
4 years ago
Please give me the answer and show me how you solved it
Yuri [45]

Answer:

Option 1: -8c^8

Step-by-step explanation:

We multiply the numbers by the numbers, then the variables times the variables.

-2 times 4 gives us -8

c^3 times c^5 = c ^8. When multiplying a variable with exponents, you add the exponents.

You only multiply the exponents when it's something like (c^3)^5

4 0
3 years ago
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