Ameasurement is given as the length of an onion cell is 0.4mm to the nearest tenth of a millimeter. find the minimum & maximum possible measurements

The least number which approximates to 0.4mm to the nearest tenth is 0.35 while the largest number which approximates to 0.4mm to the nearest tenth is 0.449

Therefore, the minimum & maximum possible measurements are 0.35 and 0.449 respectively.

Supplementary

Step-by-step explanation:

The 2 angles form a straight angle and are therefore supplementary, hence

3x + 25 + 2x = 180

5x + 25 = 180 ( subtract 25 from both sides )

5x = 155 ( divide both sides by 5 )

x = 31

Hence

3x + 25 = (3 × 31 ) + 25 = 93 + 25 = 118°

2x = 2 × 31 = 62°

The 2 angles are 118° and 62°