3 years ago

What is 312.501 rounded to the nearest whole number? A. 310 B. 311 C. 312 D. 313

Mathematics

1 answer:

lorasvet [3.4K]3 years ago

8 0

313. Anything .5 or higher rounds up to the higher number.
Hope it helps!

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PLEASE PLEASE HELP

noname [10]

Answer:

$8.51x10^{-3}cm$

Step-by-step explanation:

In order to add or subtract numbers in scientific notation, the powers of ten must have the same exponent. In this caes the diameter of an average human body cell is a power of -4 and the diameter of a plant cell is a power of -3. In order to add them, we can move the decimal over for the body cell diameter:

$5.1x10^{-4}=0.51x10^{-3}$