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zheka24 [161]
3 years ago
6

А

Mathematics
1 answer:
ladessa [460]3 years ago
5 0

Answer:

x = 4

Step-by-step explanation:

AD = BC

8x - 12 = 20

8x = 20 + 12

8x = 32

\frac{8x}{8}  =  \frac{32}{8}

x = 4

to be sure

8x - 12 { = }^{?} 20

8 \times 4 - 12 { = }^{?} 20

32 - 12 { = }^{?} 20

20 = 20

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Alenkinab [10]
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Step-by-step explanation:

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Write any 4 laws of exponents.<br>​
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         \rule{50}{1}\large\blue\textsf{\textbf{\underline{Question:-}}}\rule{50}{1}

       <em>Write any 4 laws, or properties, of exponents.</em>

<em />

<em>        </em>\rule{50}{1}\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}\rule{50}{1}

\Large\text{Law number 1:-}

\Large\text{$a^n*a^m=a^{n+m}$}

\Large\text{It states that:-}

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\Large\text{Law number 2:-}

\Large\text{$a^m:a^n=a^{m-n}$}

\Large\text{It states that:-}

                     When we divide numbers with the same base, we

                     subtract the exponents.

\Large\text{Law number 3:-}

\Large\text{$(\displaystyle\frac{x}{y}) ^n=\frac{x^n}{y^n}$}

\Large\text{It states that:-}

                 If we have a fraction to a power, we raise the numerator and

               the denominator to that power.

And then last but not least,

\Large\textit{Law number 4:-}

\Large\text{$a^{-m} =\displaystyle\frac{1}{a^m}$}

\Large\text{It states that:-}

                   If we have a number with a negative exponent, we flip it over.

<h3>Good luck with your studies.</h3>

#TogetherWeGoFar

\rule{50}{1}\smile\smile\smile\smile\smile\smile\rule{50}{1}

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natulia [17]

Answer:

A = 1cm*pi

Step-by-step explanation:

5 0
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