Please help me to answer this questions

General Instructions: Choose the correct answer for each of the following questions. Mark only one answer for each item by shading the circle corresponding to the letter of your choice on the answer sheet provides. STRICTLY NO ERASURES ALLOWED AND EVERY ERASURE MINUS POINTS. 1.) Since 1960 the system of units used by scientists and engineers is the "metric system", which is officially known as the a . "Internation System" or SI units c. "International Sample" or SI units b. "International Symbol" or SI units d. "International System" or SI units Transform the 6.1 x 10-6 to standard notation. a. 6,100,000 b. 0.00061 0.0000061 d . 6,100 3.) Express the 6.4391m in scientific notation with 2 decimals places. a . 643.91x10-3 b . 643.91x10-2 C . 64.39 x10-2 d. 6.4391x10-4 4.) The official world land speed record is 350.0km/h, set on October 15, 1997, by Andy Green in the jet engine car Thrust SSC. Express this speed in meters per second. a . 350m/s b. 5.83m/s 0.28m/s d. 97.22m/s 5.) It is quantity that has both a magnitude and a direction in space. a. Vector quantity b. Graphical method C . Scalar quantity d. Analytical method 6.) Identify the underline words in the sentence. Lina experienced temperature of 41.0 when she got fever. a . Vector quantity b . Graphical method C. Scalar quantity d. Analytical method 7.) It is quantity that having only a magnitude. a. Vector quantity b. Graphical method C . Scalar quantity d . Analytical method 8.) Identify the underline words in the sentence. John covert 6,721 millimeters to meters the result is 6.721 meters from distance of his house to garden. a. Vector quantity b. Graphical method C . Scalar quantity d. Analytical method 9.) What is the disadvantages are that the graphical methods. a . Time-consuming C . Give a good intuitive picture. b. Help you visualize what you're trying to do. d. Very accurate 10.) Determining the resultant of two or more non-perpendicular vectors by adding all their x-components and y- components. a. Vector quantity b. Graphical method C . Scalar quantity d. Analytical method 11.) What is the resultant R of A=50 cm, 60 and B=100 cm 300 by using the analytical method. 50.75cm b. 507.51cm C. 8.67cm d. 86.70cm 12.) What is the angle in vectors of A=230 cm, 750 and B=450 cm 3450 by using the analytical method. 30.110 b. 12.410 C. 11.86 d. 50.750 13.) The scalar product of two vectors A andB is denoted byAB .-. Because of this notation, the scalar product is called a. Cross product b . Dot product c. Scalar product d. Vector product 14.) Solve the unit vectors using the dot productA = 71 + 20/ + 2k, and B = 151 + 8/ + 35k. a . -120 b . 335 C . 1056 d. -231