Question 1

Round to three decimal places: 1425.90749

Accepted Answer

1425.907

Answer

1430

Answer

1430.000

Answer

1425.908

Question 2

Which of the fomulas below corresponds to this graph?

Accepted Answer

Total costs in euros = 50 + 20 * Number of hours

Answer

Number of hours = 50 + 20 * Total costs in euros

Answer

Total costs in euros = 50 + 25 * Number of hours

Answer

Number of hours = 20 + 50 * Total costs in euros

Question 3

Total costs in euros = 50 + 20 *Number of hours. How many hours have been past when the total cost is 116 euros?

Accepted Answer

3.3 hours

Answer

3 hours

Answer

3.5 hours

Answer

3.8 hours

Question 4

What was the themperature when the size of the gap was 2.8 mm? Use the balancemethod.

Accepted Answer

x = 12

Answer

x = 11

Answer

x = 13

Answer

I have no clue how to do this exercise.

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