Given the system of linear equations 5?1 + 2?2 + ?3 = 45 −2?1 + ?2 − 3?3 = −4 4?1 − ?2 + 8?3 = 2 a. Write the augmented matrix b. Solve the system by Gaussian elimination & backward substitution method.
Given is a PERT project network diagram as shown below. Start D Activity Start ABCDEFGH End Time 0 1.35 3.65 4.327 .36 8.25 1.394 .68 3.250 a) The Project Completion time = (in 2 decimal places) b) The Earliest Start time, Es, of Activity G- (in 2 decimal places) c) The Latest Finish time, LF, of Acitivity C (in 2 decimal places) d) The critical activities are (ex. type in critical activities as ABCD no comma, no space)
QUESTION 6 Find 2 45 s2 + 25-3 5 (write 5/6 by and sin(2t) or cos(31) by sin(2t) or cos(3t). 6.ey-3t) by e-3t 5 points
New... - 12 -BI A , GEA DE E- LET 2 45 5 T 3. (0.5 points) Give the formula for the conjugate base of acetic acid, CH3COOH
Question 15 For the truss shown in the figure below, determine the vertical reaction force at support A 5 kN 3 m 45 1 m 2 m +5 KN + 4.3 kN -3 kN -5 kN Question 16 For the truss shown in the figure below, determine the horizontal reaction force at support D: 5 kN 45° 1 m 2 m + 15 kN - 12.5 kN 0 kN +5 kN Question 17 For the truss shown in the figure...
3 11411311123233211344 2132-411 2-2 4 2 3 3 1 2 1 5 2 3 1-2 45-5 0-234567. 8 9 0 1 2 Homework: Section 2.1 Homework Score: 0 of 5 pts HW Score: 33 33%, 5 of 15 pt the service of the station on the scale of 1-Very Good, 2-Good, 3-Fak, 4 Pow, and 5-Very Poor The station with the codes 1 moening 2 alemoon, 3 evening and 4 various times The accompanying Complete parts a c below Click...
45 Find L 32 +25-3 5 -3t (write 5/6 by 6' , e^{-3t} by e and sin(2t) or cos(3t) by sin(2t) or cos(3t)). **{3+2-3)
Pisrgnmest MtapeTani rnaten I Gaph &onnect Al-5,-i), 1L-3, -2), 113,2) Retket Yaris y) X3, Y+2) Rotate 45 clockw ise, Draw line t aogle
Pisrgnmest MtapeTani rnaten I Gaph &onnect Al-5,-i), 1L-3, -2), 113,2) Retket Yaris y) X3, Y+2) Rotate 45 clockw ise, Draw line t aogle
part 2
Hwill sec 6.2 Previous 2 3 45 Next Question 3 of 5 (1 point) View problem in a pop-up For a certain group of individuals, the average heart rate is 73 beats per minute. Assume the variable is normally distributed and the standard deviation is 2 beats per minute. If a subject is selected at random, find the probability that the person has the following heart rate. Round the final answers to four decimal places and intermediate z-value...
3-5 12. Perform the indicated operation. (8-V-45) – (3 + V-80) b.