3 years ago

Help!! I got a few mins left

Mathematics

2 answers:

Westkost [7]3 years ago

7 0

A and B are false C and D are true

IrinaVladis [17]3 years ago

6 0

Answer:

sorry i have no idea!!

Step-by-step explanation:

hope you find it out soon

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A cube has a volume of 7 cubic centimeter what is the surface area

Alborosie

$\bf \textit{volume of a cube}\\\\ V=s^3~~ \begin{cases} s=\stackrel{\textit{length of}}{\textit{a side}}\\[-0.5em] \hrulefill\\ V=7 \end{cases}\implies 7=s^3\implies \sqrt[3]{7}=s$

now, Check the picture below, since it's really just 6 square faces,

$\bf \textit{surface area of a cube}\\\\ SA=6s^2~~ \begin{cases} s=\stackrel{\textit{length of}}{\textit{a side}}\\[-0.5em] \hrulefill\\ s = \sqrt[3]{7} \end{cases}\implies SA=6\sqrt[3]{7}\implies SA\approx 11.477587$