Question

what is the full from led​

Answer 1

48. If y= u-v then dy/dx is,

a) du/dx-dv/dx

b) du/dx+dv/dx

c) du/dx*dv/dx

d) dx/du-dx/dv

49. If total cost is C= x2

+3x-3 then AC is,

a) 2x+3

b) x+3-3/x

c) x+3

d) 3x-3

50. If total cost is C= x2

+3x-3 then MC is,

a) 2x+3

b) 2x+3-3

c) 2x

d) 3x-3

51. If total cost is C= x2

+3x-3 then MC at x=5 is,

a) 10

b) 37

c) 13

d) 12

52. If total cost is C= x2

+4x-5 then MC is,

a) x+4

b) 2x+4-5

c) 2x+4

d) 4x-5

53. If total cost is C= x2

+4x-5 then MC at x=2 is,

a) 8

b) 7

c) 6

d) 5

54. If marginal cost=2x+4 then MAC is,

a) x+4

b) 4

c) 2

d) 8

55. If marginal cost=2x+4 then MAC at x=10 is,

a) 24

b) 20

c) 60

d) 2

Answer 2

Light-emitting diode