50. which of the following is true about deep sea hydrothermal vents? a. they are in an estuarine habitat. b. chemosynthesis rather than photosynthesis provides energy at the base of the food web. c. they are devoid of life. d. they are nutrient poor. e. they are found only in cold water

By the triangle inequality theorem, if two sides of a triangle have lengths of 3 and 7, what are all the possible lengths of the third side? a) 3 < x < 8 b) 3 < x < 7 c) 4 < x < 10 d) 5 < x < 7

Drag and drop a statement or reason to each box to complete the proof. statement reason △abc , de⎯⎯⎯⎯⎯∥ac⎯⎯⎯⎯⎯ given corresponding angles postulate △bde∼△bac babd=bcbe polygon similarity postulate ba=bd+dabc=be+ec bd+dabd=be+ecbe substitution property of equality bdbd+dabd=bebe+ecbe addition of fractions 1+dabd=1+ecbe simplify. dabd=ecbe subtraction property of equality

Equilateral triangle pbj is inscribed in a circle as shown. determine the measure of arc pjb.