3 years ago

A restaurant offers a choice of 4 salads, 9 main courses, and 4 desserts. How many possible 3-course meals are there

Mathematics

1 answer:

Sergeu [11.5K]3 years ago

8 0

Answer:

144

Step-by-step explanation:

Multiply each option together 9X4X4=144

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fomenos

Answer: $b=\sqrt{c^{2}-a^{2}}$

Step-by-step explanation:

To solve the exercise you must solve for b from the formula for the hypotenuse, as you can see below:

- Square both sides of the equation as following:

$c^{2}=(\sqrt{a^{2}+b^{2}})^{2}$

- Now you must subtract a² from each side of the equation, then you obtain:

$c^2-a^{2}=a^{2}-a^{2}+b^{2}$

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- Apply square root to both sides:

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Then:

$b=\sqrt{c^{2}-a^{2}}$

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.................

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