Question

what number could be added to 0.40 ml for the level of precision to be 0.01 ml? check all that apply 0.2 ml 0.154 ml 6 ml 2.02 ml 8.8331 ml

Explanation:

Step1: Understand precision concept

Precision of 0.01 mL means the number should be accurate to the hundred - ths place.

Step2: Analyze each option

• For 0.2 mL, when added to 0.40 mL, we can express the sum precisely in hundred - ths place (0.40 + 0.2=0.60 mL).
• For 0.154 mL, it has precision of 0.001 mL, which is more precise than required.
• For 6 mL, when added to 0.40 mL, we can write the sum as 6.40 mL, accurate to hundred - ths place.
• For 2.02 mL, when added to 0.40 mL, the sum can be accurately expressed in hundred - ths place.
• For 8.8331 mL, it has precision of 0.0001 mL, which is more precise than required.

Answer:

0.2 mL, 6 mL, 2.02 mL