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3 years ago

7

What is the area of a rectangle that measures 9cm by 81mm?

1 answer:

RUDIKE [14]3 years ago

3 0

Well, a Centimeter is 10 times bigger than a Milimeter.

So we can convert 9cm by multiplying it by 10

9 × 10= 90mm

SInce we know the length and width of the rectangle, we can now find the area of it, or "the space inside".

Area = length × width

Area = 90mm × 81mm
Area = 7290mm

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3 years ago

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3 years ago

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Anit [1.1K]

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1 year ago

A culture started with 5000 bacteria after 5 hours it grew to 6500 bacteria predict how many bacteria will be present after 16 h

postnew [5]

Answer:

After 16 hours bacterial count will be 11600.

Step-by-step explanation:

Bacterial growth is always an exponential growth in a given culture.So the formula for the growth will be

Final counts of bacteria = Initial counts × $(rate of growth)^{time}$

Given from first part Initial counts = 5000

Final counts= 6500 and time of growth = 5 hours

Then we will get the value of rate of growth of bacteria from the bacteria

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Now again to get the value of bacteria after 16 hours

Final Count = 5000× $(1.05)^{16}$

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3 years ago