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jeka57 [31]
3 years ago
15

2 questions in one. Help?..

Mathematics
2 answers:
daser333 [38]3 years ago
4 0

Answer:

2. 3

3. 4^45

Step-by-step explanation:

{ ({5}^{4} ) }^{m}  =  {5}^{12}  \\  =  >  {5}^{4m}  =  {5}^{12}  \\  =  > 4m = 12 \\  =  > m =  \frac{12}{4}  \\  =  > m = 3 \\  \\ number \: of \: books \: at \: library \\  =   {({4}^{9})}^{5}   \times  {4}^{0}  \\  =  {4}^{45}  \times 1 \\  =  {4}^{45}

AnnyKZ [126]3 years ago
3 0

\huge{ \red{ \fbox{Hello !}}}

\huge\red{\mid{\underline{\overline{\textbf{Your Answer will be is :\:}}}\mid}}

3.

4^{45}

\rule{300}{5}

\huge\blue{\mid{\fbox{\tt{MY\:EXPLANATION:}}\mid}}

Apply exponent rules:

4m=12

Solve: 4m=12: m=3

\boxed{ANSWER~:\;}

m=3

Apply rule: a^{0} =1, a\neq 0

4^{0} =1

= 4^{45}. ~1

Multiply: 4^{45} . 1 = 4^{45}

=4^{45}

\boxed{ANSWER~:\;}

=4^{45}

Hope It Helps. . .

#LearnWithBrainly

\boxed{ANSWER~:\;}

\bold{Jace\;} ^-^

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