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MariettaO [177]
3 years ago
7

You are riding on a road at 5mph and your friennd in the same direction at 3mph with a head start of 1/2 mile. how long will it

take to catch your friend
Mathematics
1 answer:
VashaNatasha [74]3 years ago
4 0
You will catch up in 15 minutes
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Answer: I do not understand the options you gave but but cos30º is equal to \sqrt{3}/2 which is 0.86602540378.

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What is the slope !!!!!
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2 - 3 / 3 - 0

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Darnel has $9 in a savings account. The interest rate is 10%, compounded annually.
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  $2.98

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Kendra reads in Modern Dog Magazine that the average age of dogs currently alive is 4.8 years. To determine if this finding appl
SOVA2 [1]

Answer:

The true statement about Kendra's sample is:

b) Kendra's samples are precise but not accurate.

Step-by-step explanation:

a) Data and Calculations:

Average age of dogs currently alive = 4.8 years

Average ages of dogs in Kendra's sample

Week   Average Age (in years)

1                    3.7

2                   3.8

3                   4.2

4                   4.1

5                  3.9

6                  3.9

7                  4.0

Total         27.6

Mean = 3.9 (27.6/7)

b) Accuracy refers to how close Kendra's sample mean age of dogs is to the average age value as stated in the Modern Dog Magazine.  While the Magazine stated an average age of 4.8 years, Kendra's sample produced a mean of 3.9 years.  On the other hand, precision refers to how close Kendra's sample measurements are to each other.  With a mean of 3.9 years, the sample measurements are very close to each other.  Therefore, we can conclude that "Kendra's samples are precise but not accurate."

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2 years ago
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