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jekas [21]
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
Mathematics
1 answer:
Dennis_Churaev [7]2 years ago
6 0

Answer:

Step-by-step explanation:

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Which division problem does the diagram below best illustrate? A diagram with 8 ovals containing 4 squares each. 16 divided by 4
Tems11 [23]

Answer:  32 divided by 4 = 8

Step-by-step explanation:

If the diagram is 8 ovals with 4 squares each, and we know that this is a division, then we have that an unknown number X is such that:

X/4 = 8

this is because we know that the division is by 4 (the number of squares in each oval) and the solution of the division is the number of ovals.

Then we can solve the equation for X.

X/4 = 8

We multiply each side of the equality by 4

X = 4*8 = 32

Then the diagram represents the division:

32/4 = 8 or " 32 divided by 4 = 8"

4 0
3 years ago
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jonny [76]
The answer is y/x=1
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7 0
4 years ago
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2. The side lengths of a square measure 25.3 cm. Estimate the area of the
Katarina [22]

Answer:

625 sq ft.

Step-by-step explanation:

25 cm is close to 25.3 so our estimate is 25 * 25 = 625.

5 0
3 years ago
−9−(−12) as an addition expression
monitta

The value of 9−(−12) as an addition expression is 3.

<h3>What is a expression?</h3>

Expression simply refers to the mathematical statements which have at least two terms which are related by an operator and contain either numbers, variables, or both. Addition, subtraction, multiplication, and division are all possible mathematical operations.

In this case, the expression given is illustrated as:

-9 - (-12)

It's important to note that (-) × (-) = +

Therefore, -9 - (-12)

= - 9 + 12

= 3

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1 year ago
Find the area of the trapezoid shown below
11111nata11111 [884]

Answer:

A=a+b

2h

Step-by-step explanation:

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3 years ago
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