The actual thickness of a machine part is 0.5 cm, and it has to be measured to within a 2% error. What is the largest measurement that is acceptable?
A)
0.49 cm
B)
0.51 cm
C)
0.52 cm
D
0.53 cm

42

step-by-step explanation:

50- 250 is correct i did that one too

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

answer: it's d

step-by-step explanation: