3x + 6 = 21....subtract 6 from both sides
3x = 15...divide both sides by 3
x = 5
I graphed it on desmos, hope this helps a little :)
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NicoleGolfLover
Hi there!
To solve this problem, we'll need to proceed methodically. First, we'll find the value of ST. Using the 30-60-90 relationship, we know that ST is equal to 2. Then, we need to find the value of RT. Again using the 30-60-90 relationship, we know that RT is equal to 4. Lastly, using the 45-45-90 relationship, we know that x = 4.
Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
Answer:
the third one
Step-by-step explanation:
first you would multiply the mass and the "amu" of both of the isotopes of copper when you have what you multiplyed, you add that product and get your answer.