Note: we use m, etc. to denote u, v, w, etc. and r to denote r. question 1 suppose a and b are 3 x 3 matrices. show that if b is obtained from a by adding 100 times the first row of a to the last row of a det (b) then det (a) = question 2 suppose a and b are 3 x 3 matrices. prove that (i) (a+bt-rt + at

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.