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Solnce55 [7]
3 years ago
10

1. When Aaron runs the 400 meter dash, his finishing times are normally distributed with a mean of 80 seconds and a standard dev

iation of 2.5 seconds. Using the empirical rule, determine the interval of times that represents the middle 99.7% of his finishing times in the 400 meter race.
​
Mathematics
1 answer:
Alex Ar [27]3 years ago
6 0

Answer:

(72.5,87.5)

Step-by-step explanation:

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What is the answer I need help pls
shutvik [7]

Answer:

The answers are,

-3, -7

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2, 8

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Step-by-step explanation:

You just plug in the domain values into the equation and solve for f(x), so your domain number is your x value and the y value(f(x) value) is the answer

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PLEASE ANSWER QUICK<br><br> What is the unit rate for the ratio 96:8
frez [133]

Answer:

12:1

Step-by-step explanation:

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4 0
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Solve the equation<br> 9x² – 29x – 28 = 0<br> Give your answers to 2 decimal places when appropriate
andrew-mc [135]

Answer:

x = 4 or x = 0.78

Step-by-step explanation:

9x² – 29x – 28 = 0

2 roots: x = ((-(-29) ± √(-29)² - 4 x 9 x (-28)) / (2 x 9)

               = (29 ± √841 + 1008) / 18

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x = -14 /18 = - 0.78

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3 years ago
Help me please please
Temka [501]

Answer:

Step-by-step explanation:

i have no idea what to do

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What is the pattern of 99,999
Mashcka [7]
There all kinds so it would keep going on with nines
8 0
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