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3 years ago

What is the value of n in the equation below?

Mathematics

2 answers:

k0ka [10]3 years ago

7 0

Answer

Step-by-step explanation:

in this equation , since its a fraction you would divide. With the exponents it would be subtraction. therefore, making it 12 I hope this helps :)

11Alexandr11 [23.1K]3 years ago

5 0

Answer:

Step-by-step explanation:

im not 100% sure

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Evaluate -a -8b when a = 9 and b = -3 someone please help quick!!

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Answer:

Step-by-step explanation:

-a -8b = -9 + 24 = 15

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Answer:

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Step-by-step explanation:

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Use the following image to assist in your answer. a = - 6 - 9 - 4

vfiekz [6]

Step-by-step explanation:

Pythagoras' theorem for the smallest one :

$c^2 = 4^2 + 6^2$

$c^2 = 16 + 36$

$c^{2}$ = 52

Pythagoras' theorem for the middle one :

$b^{2}$ = $6^{2}$ + $a^{2}$

Pythagoras' theorem for the biggest one :

$(4+a)^2 = c^2 + b^2$

$16 + 8a + a^2 = 52 + b^2$

Using the formula before (for $b^2$ ) it becomes :

$16 + 8a + a^2 = 52 + (6^2 + a^2)$

$16 + 8a + a^2 = 52 + 6^2 + a^2$

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16 + 8a = 52 + 36

16+8a = 88

8a = 88-16

8a = 72

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Verifying :

$b^2 = 6^2 + a^2$

$b^2 = 36 + 81$

$b^2 = 117$

$b^{2}$ = 117

The biggest one :

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$(4+9)^2 = 52 + 117$

$13^2 = 169$

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Answer:

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Step-by-step explanation: See annex

Figure in annex is clear,

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And

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