A bag contains 3 red, 5 yellow, and 7 purple marbles. Find the probability of drawing a purple marble followed by a red marble.
1 answer:
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Answer and Step-by-step explanation:
You are correct in that we need to use the Law of Sines: .
Here, when we use the Law of Sines, we have: .
Cross multiply:
(sinB) * 28 = (sin63) * 29
28sinB ≈ 25.839
sinB ≈ 0.9228
Now, in order to solve for B, we need to use inverse sin ():
The sines on the left cancel out, and we're left with:
B ≈ 67.3 degrees
Now, one thing to keep in mind when doing Law of Sines is that there is potentially more than one answer possible for the degree measure. The other degree measure can be found by subtracting this one from 180:
180 - 67.3 = 112.7 degrees.
Hope this helps!
Hello there.
Explanation:
↓↓↓↓↓↓↓↓↓↓
First, subtract by 4 from both sides.
Second, simplify.
Third, divide by -1 from both sides.
Fourth, simplify.
Next, add by 3 from both sides.
Then simplify.
Therefore, divide by 2 from both sides.
Finally, simplify.
<u><em>Answer⇒⇒⇒⇒x=2</em></u>
Hope this helps!
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-Charlie