Discover Questions

Vector A makes an angle of 20° and B makes an angle of 110° with the x axis. The magnitudes of A= 20 mag of b = 30. Find angle of resultant? What are 2 characteristics of high mass stars? If you triple the length of each side of a cube, its surface area increases by what factor? Write each as a single mixed number (with the fraction being proper): a) 2 5/84 + 5 27/28
b) 1 3/5 − 4 2/3
c) 2 1/2 × 1/2
d) 3 9/17 ÷ 3/17? If cos x = 3/7; x is an angle in the fourth quadrant; what is cos(x/2)?