Question

Sendo x = 8,1.10²³ e y = 4.10^15, calcule x.y e x:y​

Answer 1

Resposta:

X×Y= 8,1×4×10²³×10¹⁵ = 32,4×10³⁸ = 3,24×10³⁹

X/Y = 2,025×10⁸

Explicação passo-a-passo:

Answer 2

sendo;

$x = 8.1 \times {10}^{23}$

e

$y = 4 \times {10}^{15}$

x•y=

$8.1 \times {10}^{23} \times 4 \times {10}^{15} =$

$8.1 \times4 \times {10}^{23} \times {10}^{15} =$

$32.4 \times {10}^{23 + 15} =$

$32.4 \times {10}^{38} =$

$3.24 \times 10 \times {10}^{38} =$

$3.24 \times {10}^{39}$

e x/y=

$\frac{8.1 \times {10}^{23} }{4 \times {10}^{15} } =$

$\frac{8.1}{4} \times \frac{ {10}^{23} }{ {10}^{15} } =$

$2.025 \times {10}^{23 - 15} =$

$2.025 \times {10}^{8}$

x•y= 3.24 × 10^(39)

x/y= 2.025 × 10^(8)