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dimulka [17.4K]
3 years ago
14

Please help, It's for my test.

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0

Answer:

160

Step-by-step explanation:

2(4)³+3(3)²+5

2(64)+27+5

160

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Answer:

a.  $ \frac{\textbf{17}}{\textbf{4}} $

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Step-by-step explanation:

a. $ \textbf{3} \hspace{1mm} \textbf{+} \hspace{1mm} \textbf{1}\frac{\textbf{1}}{\textbf{4}} $

A mixed fraction of the form $ a\frac{x}{y} = a + \frac{x}{y} $

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b. $ \textbf{2} \hspace{1mm} \textbf{-} \hspace{1mm} \textbf{1}\frac{\textbf{5}}{\textbf{8}} $

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$ = \frac{8 - 5}{8} $

$ = \frac{\textbf{3}}{\textbf{8}} $

Hence, the answer.

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