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Amiraneli [1.4K]
3 years ago
5

Hello please help i’ll give brainliest

Mathematics
1 answer:
dlinn [17]3 years ago
5 0

Answer:

<h2><em><u>The</u></em><em><u> </u></em><em><u>sun</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>e</u></em><em><u>arth's</u></em><em><u> </u></em><em><u>interior</u></em><em><u> </u></em></h2>

Step-by-step explanation:

As,

The Earth has two basic sources of energy -

  1. <em><u>Earth's</u></em><em><u> </u></em><em><u>I</u></em><em><u>n</u></em><em><u>t</u></em><em><u>e</u></em><em><u>r</u></em><em><u>i</u></em><em><u>o</u></em><em><u>r</u></em><em><u>-</u></em><em><u> </u></em>hat reaching the Earth from the Sun (Solar Energy) and that reaching the surface of the Earth the Earth itself <em><u>(Internal or Geothermal Energy). </u></em>
  2. <em><u>Solar Energy</u></em> - reaches the Earth in the form of radiant energy, and makes up 99.987% of the energy received by the Earth.
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Anna [14]
The answer is 6f+(-6.1)
3 0
3 years ago
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Round 69.65 to the nearest whole number.<br> A) 69 <br> B) 69.7 <br> C) 70 <br> D) 70.6
harina [27]

Answer:

70

Step-by-step explanation:

69.65

We look at the tenths place to determine if we round up or leave it alone

.6 is greater then or equal to five so we need to round the 9 up

69.65 rounds to 70

8 0
3 years ago
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Which expressions are equivalent to 3x + 2(x − 1) − 4? A.) 3x + 2x - 2 - 4 B.) 5x - 6 C.) 3(x - 4) D.) 3(x + 2) - 6 E.) 6(x - 1)
sasho [114]
<span>Multiplication takes precedence
</span>Execute the command multiplication bracket

3x + 2* (x - 1)  - 4 =
3x + 2* x + 2* (-1 )  - 4 =
3x + 2x - 2 - 4 = 

<span>We reduce similar words
</span>
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Answer B  

3 0
4 years ago
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Find the value of y and<br> simplify completely.
Anna [14]

Answer:

y = 8

x = 8√5

z = 4√5

Step-by-step explanation:

Using the formula (which is a geometric mean):

a        y

---- = -----

x        a

Where a is the altitude (y), x is a projection (16), and y is the other projection (4):

y        4

---- = -----

16       y

Cross multiply:

y² = 16 (4)

y² = 64

√y² = √64

y = 8

To find x and z, use the Pythagorean Theorem:

16² + y² = x²

256 + 8² = x²

256 + 64 = x²

320 = x²

√320 = √x²

√64√5 = √x²

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4² + y² = z²

16 + 64 = z²

80 = z²

√80 = √z²

√16√5 = √z²

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z = 4√5

5 0
3 years ago
F(n) = 4n - 2 <br> g(n) = 4n + 3 <br> find f(n) + g(n)
OLga [1]

Answer:

8n-1

Step-by-step explanation:

it would be 8n-1 because you combine like terms

5 0
3 years ago
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