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Andre45 [30]
3 years ago
10

Sam is testing the effectiveness of a new cough medication. There are 100 people with a cough in the study. Thirty patients rece

ived the cough medication, and 70 other
patients did not receive treatment. Seventeen of the patients who received the medication reported no cough at the end of the study. Twenty-eight of the patients who did
not receive medication reported no cough at the end of the study. What is the probability that a patient chosen at random from this study took the medication, given that
they reported no cough?

Mathematics
2 answers:
Tcecarenko [31]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Fynjy0 [20]3 years ago
7 0

Answer:

The answer is C: 38%

Step-by-step explanation:

i got it right on the test :)

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Find the area to the nearesy square foot of the shaded region below, consisting of a square with a circle cut out of it.
frutty [35]

Based on the calculations, the area of the shaded region is equal to 22 square foot.

<h3>How to calculate the area of the shaded region?</h3>

By critically observing the geometric shapes, the area of the shaded region can be calculated by using this formula:

Area of shaded region = Area of square - Area of circle.

<u>Note:</u> The diameter of this circle is equal to the side length of the square because the circumference of this circle lies on the circumference of the square.

Radius = diameter/2 = 10/2 = 5 feet.

For the area of square, we have:

Area of square = S²

Area of square = 10²

Area of square = 100 square foot.

For the area of circle, we have:

Area of circle = πr²

Area of circle = 3.14 × 5²

Area of circle = 78.5 square foot.

Substituting the parameters into the formula, we have;

Area of shaded region = Area of square - Area of circle.

Area of shaded region = 100 - 78.5

Area of shaded region = 21.5 ≈ 22

Area of shaded region = 22 square foot.

Read more on area of circle here: brainly.com/question/2278809

#SPJ1

<h3>Complete Question:</h3>

Find the area to the nearest square foot of the shaded region below, consisting of a square with a circle cut out of it. Use 3.14 as an approximation for π.

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Add 4 to the sum of K and 8
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Step-by-step explanation:

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How do you use the elimination method ?
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3 years ago
A card is drawn from a well-shuffled deck of 52. Find p(drawing a face or a 4)
Musya8 [376]

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4 0
4 years ago
9(2*2+4➗2)= can you show how to get the answer. Which is 54.
Katen [24]
Here I'll Simplify it to show the work.
You need PEMDAS

9(2*2+4÷2)
9(4+4÷2)
9(8÷2)
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9(4) = 9 × 4 = 36

The Answer is 36.
6 0
3 years ago
Read 2 more answers
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