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3 years ago

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The hypothesis test of cost parameters indicates whether: a.the total cost is similar to that of the prior periods. b.the parame

ters are different from zero. c.a correlation exists between fixed and variable costs. d.the parameters are within the boundaries of a firm.

1 answer:

maksim [4K]3 years ago

3 0

Answer:

B. The Parameter are different from Zero

Step-by-step explanation:

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9. Combine the radical expression, if possible.

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Answer:

we conclude that:

$3\sqrt{125}+4\sqrt{20}=23\sqrt{5}$

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Step-by-step explanation:

Given the expression

$3\sqrt{125}+4\sqrt{20}$

Combining the radical expressions

$3\sqrt{125}+4\sqrt{20}$

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Thus,

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similarly solving

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$4\sqrt{20}=8\sqrt{5}$

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$=23\sqrt{5}$ ∵ $15\sqrt{5}+8\sqrt{5}=23\sqrt{5}$

Therefore, we conclude that:

$3\sqrt{125}+4\sqrt{20}=23\sqrt{5}$

Hence, the last option i.e. $23\sqrt{5}$ is correct.

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Answer:

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Step-by-step explanation:

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