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Helen [10]
3 years ago
11

A sample of 12 measurements has a mean of 8.5 and a sample of 20 measurements has a mean of 7.5. Find the mean of all 32 measure

ments.
Mathematics
1 answer:
nalin [4]3 years ago
6 0
Multiply 8.5 by 12, multiply 7.5 by 20, add them together to get 252, then divide that by 32 to get 7.875. 7.875 is the mean of all 32 measurements
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BlackZzzverrR [31]

Answer:

D. liability​

Step-by-step explanation:

The Emerson First National Bank is lending you money to buy a new car.

Before an agreement will be reached for any Organization to lend someone money there have to be something like a collateral.

The agreement will in it's document state that there must be a form of a reliability to hold on, such that if something's happen to the car, or you don't meet the paying up time, or something happens to you,they will see something to hold on.

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PLEASE ANSWER DONT IGNORE ): I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS
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Answer:

Niether of them are correct

Step-by-step explanation:

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3 years ago
3. if you want to represent geologic time with a 24-hour clock, how many years would be represented by a single second, minute a
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Geologic time, the extensive interval of time occupied by the geologic history of Earth. Formal geologic time begins at the start of the Archean Eon (4.0 billion to 2.5 billion years ago) and continues to the present day.

So the geologic time scale (GTS) contains different ranks of times about Earth, obviously you know this already. However, the GTS has these different ranks in order from shortest length of time to longest length of time.

The Earth is about 4.5 billion years old. We want to convert this geological time in a period of 24 hours. So, if 24 hours correspond to 4.5 billion years, then, 1 Hour= 4.5 billion / 24=187.5 million years. There are 60 minutes in an hour ∴ 1 minute =187.5 million /60=3,125,000 years finally, one second has 60 seconds ∴ 1 second=3,125,000 / 60 = 52,083.3 year.

learn more about geologic time here:

brainly.com/question/22502144

#SPJ4

4 0
2 years ago
How to solve 24= -v/3
vredina [299]

24 = -v/3   (first you multiply 3 to each side)
<u>×3     ×3</u>

<u />72 = -v     (then you divide -1 from each side)

-72 = v<u><u /></u><u />

8 0
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