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Harlamova29_29 [7]

3 years ago

11

When Natalie runs the 400 meter dash, her finishing times are normally distributed with a mean of 71 seconds and a standard devi

ation of 2.5 seconds. What percentage of races will her finishing time be between 71 and 77 seconds, to the nearest tenth?

1 answer:

adell [148]3 years ago

3 0

Answer:

49.2%

Step-by-step explanation:

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Bill buys the pizza shown below.

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The answer is <span>circumference</span>

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What is the area, in square centimeters, of the trapezoid below?

Gnesinka [82]

Answer:

hi kenma-san!!!!!!

Step-by-step explanation:

A trapezoid with height 6.4 cm and parallel base is 12.9 cm and 8.6 cm.

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Area of trapezoid =

Given : Height = 6.4 cm

and parallel base is 12.9 cm and 8.6 cm.

Substitute, we have,

Area of trapezoid =

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3 years ago

If Alan had won ten dollars more, he would have won five times as much as Brenda. Which equation expresses this mathematically?

prisoha [69]

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4 years ago

From a horizontal distance of 80 m, the angle of elevation to the top of a flagpole is 18 degree. Calculate the height of the fl

shtirl [24]

Answer:

26m

Step-by-step explanation:

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please find attached a graphical interpretation of this question

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3 years ago

Convert 40/7 into a mixed number

algol13

Answer:

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Step-by-step explanation:

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