Question

Os valores de a,M e n na igualdade $\sqrt[n]{7^{2} }= M^{a/3}$ são,respectivamente:

A)- 2,7 e 3.

B)- 3,2 e 7.

C)- 2,3 e 7.

D)- 7,2 e 3.

Answer 1

Resposta:

x=5⋅6

\begin{gathered}{\green{\boxed{{{\large \displaystyle \sf {\pink{{ x=30 }}}}}}}} \\\\\end{gathered}

x=30

{\large \displaystyle \sf { b) \ \frac{x}{4}=12 }}b)

4

x

=12

{\large \displaystyle \sf { x=4\cdot12 }}x=4⋅12

\begin{gathered}{\green{\boxed{{{\large \displaystyle \sf {\pink{{ x=48 }}}}}}}} \\\\\end{gathered}

x=48

{\large \displaystyle \sf { c) \ \frac{x}{7}=2 }}c)

7

x

=2

{\large \displaystyle \sf { x=7\cdot2 }}x=7⋅2

\begin{gathered}{\green{\boxed{{{\large \displaystyle \sf {\pink{{ x=14 }}}}}}}} \\\\\end{gathered}

x=14

{\large \displaystyle \sf { d) \ \frac{x}{3}-5=10 }}d)

3

x

−5=10

{\large \displaystyle \sf { \frac{x}{3}=10+5 }}

3

x

=10+5

{\large \displaystyle \sf { \frac{x}{3}=15 }}

3

x

=15

{\large \displaystyle \sf { x=3\cdot15 }}x=3⋅15

\begin{gathered}{\green{\boxed{{{\large \displaystyle \sf {\pink{{ x=45 }}}}}}}} \\\\\end{gathered}

x=45