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3 years ago

5

Cindy bought 3 burgers and 2 soft drinks for $10.50. At the same restaurant, Sean bought 4 burgers and 3 soft drinks for 14.50.

How much does 1 burger cost

1 answer:

grandymaker [24]3 years ago

3 0

Answer:

To much to count

Step-by-step explanation:

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2 years ago

(b) Find the angle between u and v to the nearest degree.

yulyashka [42]

<u>Question 1 (b)</u>

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So,

$\cos \theta=\frac{11}{\sqrt{10}\sqrt{17}}\\\\\theta=\cos^{-1} \left(\frac{11}{\sqrt{10}\sqrt{17}} \right) \approx \boxed{32^{\circ}}$

<u>Question 2 (b)</u>

<u /> $u \cdot v=22\\\\|u|=\sqrt{5^{2}+2^{2}}=\sqrt{29}\\\\|v|=\sqrt{4^{2}+1^{2}}=\sqrt{17}$

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$\cos \theta=\frac{22}{\sqrt{29}\sqrt{17}}\\\\\theta=\cos^{-1} \left(\frac{22}{\sqrt{29}\sqrt{17}} \right) \approx \boxed{8^{\circ}}$

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2 years ago