Dave Goes into a car and buys 2 cups of coffee and a piece of cake each cup of coffee cost to pound 50 5K cost £3.85 to the 10th power mode he thinks he'll get more than £1.50 change

Dave will get £1.60 change. Hence Dave is right

Step-by-step explanation:

Complete question

Dave goes into a cafe and buys 2 cups of coffee and a piece of cake.

Each

cup of coffee costs £2.75

The cake costs £2.90

Dave pays with a £10 note.

He thinks he will get more than £1.50 in change.

Is Dave correct?

Solution

Cost of one cup of coffee = £2.75

Cost of two cup of coffee = 2* £2.75 = £ 5.5

Cost of cake =  £2.90

Total amount given by Dave =  £10

Amount left with Dave =  £10 -£ 5.5 - £2.90 = £1.60

Dave will get £1.60 change. Hence Dave is right

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

the discriminant is 64 + 4*1*12 = 112

this is prime.

step-by-step explanation: