In Cheko's school, 2 3 of the students are girls. There are 174 more boys who wear spectacles than those boys who do not wear spectacles. How many boys wear spectacles if there are 3680 girls?

Which of the following is the correct ratio for converting kilograms to grams

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

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