Lars is balancing equations with his study group. He is unsure about one equation because each member of the study group came up with a different answer. Which is the proper way to balance the equation Ca(OH)2 H3PO4 → Ca3(PO4)2 H2O? Ca(OH)2 H3PO4 → Ca3(PO4)2 6H2O 3Ca(OH)2 2H3PO4 → Ca3(PO4)2 6H2O 3Ca(OH)2 2H3PO4 → Ca3(PO4)2 3H2O Ca(OH)2 2H3PO4 → Ca3(PO4)2 6H2O

Vera is on her school's track and field team. in a practice long-jump competition against her teammates, she gets 5 points for landing over the farther line. she gets a total of 7 jumps and lands x times over the farther line and the rest of the times over the closer line. which of the following functions represents vera's total score? a. f(x)=10x b. f(x)=5x+35 c. f(x)=10x+5 d. f(x)=70-5x

Remote sensing of the earth's surface and atmosphere may involve the use of what type of instruments?

This graph represents four ecosystems. each ecosystem has a different number of species, adding to its biodiversity. different colors represent different species. which statements correctly summarize the data depicted by the graph? 1. ecosystem d has more biodiversity than ecosystem c. 2. ecosystem b has more biodiversity than all the other ecosystems. 3. ecosystem a has more biodiversity than ecosystem b but less biodiversity than ecosystem c. 4. ecosystem b has more biodiversity than ecosystems c and d but less biodiversity than ecosystem a. 5. ecosystem a has more biodiversity than ecosystem c but less biodiversity than ecosystem b.