Answer: 3t = 60
Step-by-step explanation:
Một lô hàng có 6 chính phẩm và 4 phế phẩm, lấy ngẫu nhiên 2 sản phẩm. tìm kỳ vọng của số chính phẩm
1 answer:
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Answer:
1117 km
Step-by-step explanation:
Because the two cities are approximately on the same North-South line, they are on the same longitude. The difference in their latitudes is 39° - 29° = 10°. We are subtracting because they are both in the northern hemisphere. The distance between them is
Answer:
Step-by-step explanation:
Using pythagoras theorem,