An investor has an account with stock from two different companies. last year, her stock in company a was worth $3160 and her stock in company b was worth $5800. the stock in company a has increased 20% since last year and the stock in company b has increased 4%. what was the total percentage increase in the investor's stock account? round your answer to the nearest tenth (if necessary).

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle

F(2) = 0f(-2) = 0due to the way the equation is, answers with 0 are correct.