Question

Pacey's computer is infected with a virus. The number of files the virus corrupts doubles every 8 minutes. The following expression represents the number of files corrupted after x minutes.
5(2)^ x/8

Which statement is true?

The expression (0.91)x reveals the approximate rate at which the files are corrupted per hour.
The expression (1.09)x reveals the approximate rate at which the files are corrupted per hour.
The expression (1.09)x reveals the approximate rate at which the files are corrupted per minute.
The expression (0.91)x reveals the approximate rate at which the files are corrupted per minute.
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Answer 1

Answer:

The expression (1.09)x reveals the approximate rate at which the files are corrupted per minute.

Step-by-step explanation:

The number of files the virus corrupts doubles every 8 minutes.

The following expression represents the number of files corrupted after x minutes.

$5(2)^ {\frac{x}{8}}$

$5(2)^ {\frac{1}{8} \times x}$

$5(1.09)^ x$

Thus The expression (1.09)x reveals the approximate rate at which the files are corrupted per minute.

Hence Option C is correct.

Answer 2

The answer for plato is C The expression (1.09)x reveals the approximate rate at which the files are corrupted per minute.