Question

Se $2^{n} = 15$ e $2^{p} = 20$ , o valor de $2^{n-p+3}$ é:

a)6
b)8
c)14
d)16

Answer 1

Explicação passo-a-passo:

$\sf 2^{n-p+3}=\dfrac{2^{n}\cdot2^{3}}{2^{p}}$

$\sf 2^{n-p+3}=\dfrac{15\cdot8}{20}$

$\sf 2^{n-p+3}=\dfrac{120}{20}$

$\sf 2^{n-p+3}=6$

Letra A