To find the amount of complete octaves there are on the piano, you must first divide 88/ 12; which is 7.333. Since the question is asking for the amount of complete octaves, you must round down to 7. Your final answer is 7 complete octaves.
If I’m correct, then the answer is D. Someone please correct me if I’m wrong.
Answer:
130 N/cm2
Step-by-step explanation:
7.8 cm2 -> 50N/cm2
3 cm2 -> x N/cm2
x = (50×7.8) / 3
x = 130N/cm2
Step-by-step explanation:
Let the angle of elevation be

Hence, angle of elevation of the sun is 72.35°.