A family eats at a restaurant. The bill is $42. The family leaves a tip and spends $49. 77. How much was the tip in dollars'.
1 answer:
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Answer:
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Explanation:
Use the pythagorean trig identity and plug in the fact that
Isolating sine leads to . I'm skipping the steps here, but let me know if you need to see them.
The result is negative because we're in quadrant 4, when y < 0 so it's when sine is negative.
Therefore,
<h2>1.</h2>
Firstly, combine like terms:
Next, subtract r on both sides of the equation:
Next, add 8 onto both sides of the equation:
Lastly, divide both sides by 6 and <em><u>your answer will be r = 3.</u></em>
<h2>2.</h2>Firstly, multiply both sides by e:
Lastly, divide both sides by 3, and <em><u>your answer will be </u></em>