I need all problems on the page solves with work shown.

nd the extreme values of the function and where they occur. 18) y =- x+1 x2 + 2x +2 A) The maximum is - at x =0; the minimum is - - at x =-2. B) The maximum is - - at x - 0; the minimum is - atx=-2. () The maximum is 2 at x =0; the minimum is - at x = -2. D) There are none. Approximate the root by using a linearization centered at an appropriate nearby number. 19) ~9.67 19) A) 3.6700 B) 3.1117 C) 2.8683 D) 3.2233 Solve the problem. 20) Water is falling on a surface, wetting a circular area that is expanding at a rate of 8 mun2/s. How 20) fast is the radius of the wetted area expanding when the radius is 188 mm? (Round approximations to four decimal places.) A) 0.0426 mm/s B) 147.6547 mm/s C) 0.0135 mm/s D) 0.0068 mm/s 21) Electrical systems are governed by Ohm's law, which states the 21) V= IR, where V= voltage, I = current, and R = resistance. If the current in an electrical system is decreasing at a rate of 3 A/s while the voltage remains constant at 12 V, at what rate is the resistance increasing when the current is 28 A? A) - ohms/s 9 B) 196 - ohms/s C) = ohms/s D) - 2 ohms/s 22) A rectangular swimming pool 16 m by 11 m is being filled at the rate of 0.4 m3/min. How fast is the _22) height h of the water rising? A) 0.13 m/min B) 0.74 m/min C) 0.0023 m/min D) 70 m/min 23) One airplane is approaching an airport from the north at 181 km/hr. A second airplane approaches 23) from the east at 191 km/hr. Find the rate at which the distance between the planes changes when the southbound plane is 34 km away from the airport and the westbound plane is 21 km from the airport. D) 110 km/hr A) 1524 km/hr B) 380 km/hr C) 1321 kiv/hr 24 ) 24) A man 6 ft tall walks at a rate of 7 ft/s away from a lamppost that is 18 ft high. At what rate is the length of his shadow changing when he is 70 ft away from the lamppost? A ) - ft/s B ) - ft /s C ) - ft /s ft/5 D ) 3 A-4