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BaLLatris [955]
3 years ago
10

Simplify by combing like terms: 7/2x-8.62-3/2x-2.38

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
5 0

\bf \cfrac{7}{2}x-8.62-\cfrac{3}{2}x-2.38\implies \cfrac{7}{2}x-\cfrac{3}{2}x-8.62-2.38\implies \cfrac{7x-3x}{2}-11
\\\\\\
\cfrac{4x}{2}-11\implies 2x-11

Crazy boy [7]3 years ago
4 0

\frac{7}{2}x-8.62-\frac{3}{2}x-2.38\\ \\ (\frac{7}{2}x-\frac{3}{2}x)+(-8.62-2.38)\\ \\ (\frac{4}{2}x)+(-11)\\ \\ 2x-11

This should be your final answer.

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i)

the volume of a cylinder is base area times height.

Vc = pi×r²×h = pi×15²×20 = pi×225×20 = pi×4500 cm³

ii)

similar to volume, the side "mantle" area of the cylinder is the circumference of the base area times height.

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3 0
3 years ago
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