Preview File Edit View Go Tools Window Help LsDv2g-MAC1140 Course Review Sullivan copy v Page 4 of 13 - Edited reads 45 F after 5 minutes, what will it read after being in the room for 8 minutes? Assume the cooling follows 40) Newton's Law of Cooling: U = T + (Uo - T)ekt. (Round your answer to two decimal places.) Find the valu Solve the system of equations by substitution. 41) 32) X + 7y = -2 3x + y = 34 Solve the sy 42 ) Solve the system of equations. If the system has no solution, say that it is inconsistent. 33) S 4x + y = 5 -16x - 4y = - 20 Perform the 43) Solve the system of equations. 34) x - y+ 2z = -5 4x + z= 0 Use the given x + 4y+ z= 20 44) Le Write the augmented matrix for the system. 35 2x + 0.3y = 10.6 Compute the 45) 0.5x + 0.6y = 3.7 Determine whether the system corresponding to the given augmented matrix is consistent or inconsistent. If it is consistent, give the solution. 36) Each matrix i [10 -26 ] 46) 014 -4 0 0 0 0 Perform the row operation(s) on the given augmented matrix. 37) R2= -511 + 12 Solve the syste 1 4 12 47) 5 8 - 8 Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent. 8x + 4y - z = 15 38)x - 2y +72 = 61 4x + y + z= 19 The Find the value of the determinant. 39) 2 2 MacBook Air