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3 years ago

Someone plsssssss help me with this

Mathematics

2 answers:

aleksklad [387]3 years ago

6 0

Answer:

99 ÷ 9 equal 11

Step-by-step explanation:

99 ÷ 9 = 11. yeah

Yakvenalex [24]3 years ago

3 0

Answer:

(9+9)÷9+9

Step-by-step explanation:

18÷9=2

2+9=11

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3 years ago

What is 3 multiplied by 5/8 as a mixed number

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3 years ago

How do I solve this equation and check the solutions?

IgorLugansk [536]

<h3>SOLUTION :-</h3>

<u>By squaring on both sides :</u>

$: \implies \sf {\big( \sqrt{20 - 8x} \:\big)}^{2} = x^2 \\ \\$

$:\implies \sf {20 - 8x} = {x}^{2} \\ \\$

<u>Solving quadratic equation :</u>

$: \implies\sf{ {x}^{2} + 8x - 20 = 0 } \\ \\$

$: \implies\sf{ {x}^{2} + (10 - 2)x - 20 = 0 } \\ \\$

$: \implies\sf{ {x}^{2} + 10x - 2x - 20 = 0 } \\ \\$

$: \implies\sf{ x(x + 10) - 2(x + 10 )= 0 } \\ \\$

$:\implies\sf{( x + 10 )(x - 2)= 0 } \\ \\$

$: \implies\sf x + 10 = 0 \: or \: x - 2 = 0 \\ \\$

$: \implies\sf x = 0 - 10\: or \: x = 0 + 2\\ \\$

$: \implies \underline{\boxed{ \bf{x = - 10 \: or \: x = 2}}}$

$\huge {\therefore}$ The roots of this equation are -10 and 2.

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3 years ago

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Someone plsssssss help me with this​

Someone plsssssss help me with this