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2 years ago

7

When Micaela runs the 400 meter dash, her finishing times are normally distributed with a mean of 81 seconds and a standard devi

ation of 1.5 seconds. What percentage of races will her finishing time be faster than 79.5 seconds, to the nearest tenth

1 answer:

Dennis_Churaev [7]2 years ago

6 0

Answer:

Step-by-step explanation:

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What is 87 less than the quotient of an unknown number and 43 is -75.

frosja888 [35]

We set up an equation: ?/43 -87= -75
⇒ ?/43= -75+ 87
⇒ ?/43= 12
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The unknown number is 516~

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3 years ago

What is the area of the hexagon below to the nearest tenth of a square centimeter?

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Step-by-step explanation:

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3 years ago

Find the coordinates of the midpoint of the segment with the given endpoints A(1,2) and B(3,6).

Paha777 [63]

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using the midpoint formula

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3 years ago

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mafiozo [28]

Answer:

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Step-by-step explanation:

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3 years ago

F(n) = 7n – 5<br> Evaluate<br> n = -3

Usimov [2.4K]

Answer:

=-26

Step-by-step explanation:

f(n) = 7n – 5

Let n = -3

f(-3) = 7*(-3) – 5

Multiply first

= -21-5

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3 years ago