Question

Please answer c and d and b

Answer 1

Answer:

(b) 0.3    (c) 6 / 7    (d)  -ab

Step-by-step explanation:

(b)

$\sqrt[3]{0.27 / 10} = \sqrt[3]{0.027} =\sqrt[3]{(0.3)^3} =0.3$

(c)

$-\sqrt[3]{(-216 / 343)} = -\sqrt[3]{(-6 / 7)^3} = -(-6 / 7) = 6 / 7$

(d)

$- \sqrt[3]{-a^3}$ X $\sqrt[3]{-b^3}$

$= - \sqrt[3]{(-a^3)(-b^3)} = - \sqrt[3]{ab^3} = -(ab) = -ab$

Hope it is useful....