- Grade 11 and 12 Mathematics (Moderator: geoffrey)
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Author Question: A factory has 20 assembly lines producing a popular toy. To inspect a representative sample of 100 ... (Read 4081 times) |
- Grade 11 and 12 Mathematics (Moderator: geoffrey)
The shortest mature adult human of whom there is independent evidence was Gul Mohammed in India. In 1990, he was measured in New Delhi and stood 22.5 inches tall.
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
Most strokes are caused when blood clots move to a blood vessel in the brain and block blood flow to that area. Thrombolytic therapy can be used to dissolve the clot quickly. If given within 3 hours of the first stroke symptoms, this therapy can help limit stroke damage and disability.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.