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3 years ago

Help pleaseee due tonight :(

Mathematics

2 answers:

mylen [45]3 years ago

7 0

Answer:

x = 3

Step-by-step explanation:

x = -b/2a for a = 1 & b = -6

x = 6/2

x = 3

Serggg [28]3 years ago

5 0

Answer:

x=3

Step-by-step explanation:

substitute into the equation

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Answer:

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Step-by-step explanation:

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prohojiy [21]

Answer:

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Step-by-step explanation:

Here's the required formula to find the missing side of triangle by pythagoras theorem :

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$\begin{gathered} \quad{\longrightarrow{\sf{{(a)}^{2} + {(b)}^{2} = {(c)}^{2}}}} \\ \\ \quad{\longrightarrow{\sf{{(20)}^{2} + {(21)}^{2} = {(c)}^{2}}}} \\ \\ \quad{\longrightarrow{\sf{(20 \times 20) + (21 \times 21) = {(c)}^{2}}}} \\ \\ \quad{\longrightarrow{\sf{(400) + (441) = {(c)}^{2}}}} \\ \\ \quad{\longrightarrow{\sf{400 + 441 = {(c)}^{2}}}} \\ \\ \quad{\longrightarrow{\sf{841= {(c)}^{2}}}} \\ \\ \quad{\longrightarrow{\sf{c = \sqrt{841}}}} \\ \\ \quad{\longrightarrow{\sf{\underline{\underline{\purple{c = 29 \: km}}}}}}\end{gathered}$

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2 years ago

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