Suppose a triangle has sides a, b, and c let theta be the angle opposite the side of length a. if cos theta < 0 what must be true?

a- b^2+c^2> a^2
b- a^2+b^2=c^2
c- b^2+c^2 d- a^2+b^2> c^2

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?

10% of 1,900,000. show me how you got the answer

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.