Questions by Feng

Questions by Feng

The formula for the circumference C of a circle with radius r is C = 2πr. Which of the following is a formula for π (pi) of the circle in terms of the circumference and radius? A. PI=C+2r B: C-2r C: PI=2R/C

asked May 18, 2017

1 answer

1 vote

218k views

What should be done whenever you are finish using microscope

asked Apr 20, 2017

2 answers

2 votes

231k views

The development of vascular tissue allowed some seedless plants to A. perform photosynthesis. B. grow taller. C. make sugars for energy. D. use alternation of generations.

asked Jun 9, 2016

1 answer

5 votes

215k views

Will water evaporate faster than orang juice

asked Jan 6, 2016

2 answers

1 vote

220k views

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