The length of time it takes to complete a word puzzle is found to be normally distributed with a mean of 71 seconds and a standard deviation of 12 seconds. Using the 50%-34% -14% figures, find the approximate percentages of scores (on time to complete the word puzzle) that will be above or below the following values. (a) Above 59 (f) Below 71 (b) Below 59 (g) Above 95 (c) Above 47 (h) Below 95 (d) Below 47 (i) Above 83 (e) Above 71 (i) Below 83

Q: dr –DA V7 - 5r)

A:

Q: [(et (et + 5)dt

A:

Q: Integrate. 5.

A: Using Substitution method,

Q: Find X ,Y and Z

A:

Q: curl(curl F)= grad(div F) - 2F

A:

Q: Calculate (a +5) -č where a = (-1, 2, 3), 5= (1, 1, 1) and = (2,-2, 1)

A: Consider two vectors u→=u1, u2 and v→=v1, v2. Then the sum of these two vectors is defined by…

Q: 2. (-2, 3) and (2, -1) m%3D X,- X, 1- 2 -

A: Given that (-2,3) and (2,-1)

Q: find x+y+z

A:

Q: Solve the following:

A: 3. Given that the equation is                                    To find the solution of the given…

Q: Fx F Fy bl Fx = 3 Fy = 7 b =

A: tan(theta) = Perpendicular/Base Note that, the side opposite to the angle is taken as perpendicular.

Q: Let a = (-1,0, 5) and 6 = (3,-1,0). Find à x 6. < V

A:

Q: dx Va + V -3

A: Explanation of the solution is given below...