Chapter 1.2, Problem 72E

Question 1 Reverse the order of integration to calculate .8 .2 A = = So² Son y1/3 cos² (x²) dx dy. Then the value of sin(A) is -0.952 0.894 0.914 0.811 0.154 -0.134 -0.583 O 0.686 1 pts

3 Calculate the integral approximations T and M6 for 2 x dx. Your answers must be accurate to 8 decimal places. T6= e to search M6- Submit answer Next item Answers Answer # m 0 T F4 F5 The Weather Channel UP DELL F6 F7 % 5 olo in 0 W E R T A S D F G ZX C F8 Score & 7 H FO F10 8 の K B N M

Start with a circle of radius r=9. Form the two shaded regions pictured below. Let f(6) be the area of the shaded region on the left which has an arc and two straight line sides. Let g(6) be the area of the shaded region on the right which is a right triangle. Note that the areas of these two regions will be functions of 6; r=9 is fixed in the problem. 0 f(0) (a) Find a formula for f(6)= | | (b)Find a formula for g(6)= lim ƒ (6) (c) 80 = lim g (0) (d) 80 = lim (e) [f(8)/g(6)]= 0 g(0)

My teacher's answer is: 4a⁷b⁶

Explain to me why the answer is: 4a⁷b⁶ if not then defend yours

GUIDED PRACTICE Apply the laws of exponents in each. 1. (4a³b²)(-2a²b²)2

i need the solution of part d and bonus. THANK YOU

Draw the following solid and explain each step to obtain the final result of the volume (see image):

A cook has finished baking a cake and placed it on the bench to cool. The temperature in the room is 20°C and the temperature of the cake when it was taken out of the oven is 160°C (a) Given that the temperature of the cake is governed by Newton's law of cooling, write down a differential equation governing T(t), the temperature of the cake after t hours. What is the appropriate initial condition? (Newton's law of cooling: dT dt =-K(T-Ta), where K is a constant and Ta is the ambient temperature.) (b) From you answer in part (a), derive the solution T(t) = 20 + 140e Kt, where K is a (c) constant. Given that the cake has cooled to 90°C after 1 hour, determine the constant K. (d) The cook decides that the cake is cool enough to be taken out of the cake pan when its temperature lowers to 40 degrees C. Find when this will happen, both in exact form and as a decimal approximation to at least 2 decimal places, showing all working.