Triangle abc has three sides with these lengths: ab = 9, bc = 40, and ca = 41. what is the value of cos c? a. 9/41 b. 40/9 c. 40/41 d. 9/40

These question are hard can you me with answers

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4