Pls help me find the operations of 3a^2+4a^2+7a^2
2 answers:
You might be interested in
Answer:
3^2 + x^2 = 9^2
9 + x^2 = 81
x^2 = 72
x = , which is about 8.5
Cosine X = 3/9
Cosine X = 1/3
angle x= 70.5
If angle x= 70.5, angle z = 19.5 degrees.
Let me know if this helps!