Volume of a sphere is (4/3)(pi)(r)^2 if r is 3.4 than the answer would be 24.65333pi or about 77.4115
check the picture below.

as you may already know, tan⁻¹ function has a range of (π/2, -π/2), and therefore it will give us the negative counterpart angle, however, the positive one we can get it by going the other way, 360 - θ.
Answer:
Elena could tell without finishing by simplifying both sides. The next step would have been 30x +24x = 30x+24. This would have been simplified down to x=1
Step-by-step explanation: