30) let vector u = (a, b) and vector v = (c, d). if the vectors are located as shown in the graph, then a) ab = -cd b) ac = -bd c) a + b = c + d d) a + d = b + c 31) find the component of a velocity vector of an airplane that is traveling 150 mph at 45° below horizontal. a) < 106.1°,106.1°> b) < 106.1°,-106.1°> c) < -106.1°,106.1°> d) < -106.1°,-106.1°> 32) given: δabc; b= 10; c = 14, and ∠a = 54°. find the length of side a to the nearest whole number. a) 9 b) 12 c) 15 d) 17 33) given: δabc. if ∠b = 35°, a = 4.5 cm, and b = 6.0 cm, what is the measurement of ∠a to the nearest tenth of a degree? a) 21.5° b) 23.2° c) 25.5° d) 30.7° 34) a manufacturer plans on building a better mousetrap. there is a 60% chance the mouse trap will produce a profit of $200,000 for the company, a 20% chance of a $100,000 profit, and a 20% chance the company will lose $200,000. based on this information, should the company build the mousetrap? a) the expected value is $70,000, so the company should build the mousetrap. b) the expected value is $85,000, so the company should build the mousetrap. c)the expected value is $100,000, so the company should build the mousetrap. d)the expected value is -$70,000, so the company should not build the mousetrap. 35) find the magnitude of the sum of v and u if v = < -2,4> and u = < -3,-5> . round to the nearest hundredth of a degree. a) 2.45 b) 3.74 c) 5.10 d) 10.30 asap, you in advance