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victus00 [196]
3 years ago
7

The following data summarizes results from 952 pedestrian deaths that were caused by accidents. If one of the pedestrian deaths

is randomly selected, find the probability that the pedistrian was intoxicated or the diriver was intoxicatedo
Pedestrian intoxicated
yes (81) (51)
no (225) (552)
Mathematics
2 answers:
Andreas93 [3]3 years ago
7 0

Answer:

0.139

Step-by-step explanation:

Number of pedestrians that were intoxicated 81

Number of pedestrians that were not intoxicated 225

Number of drivers that were intoxicated 51

Number of drivers that were not intoxicated 552

Total number of deaths 952

Probability of pedestrians intoxicated or driver intoxicated is

81/952 + 51/952 = 132/952 = 0.139

dezoksy [38]3 years ago
6 0

Answer:

0.3927

Step-by-step explanation:

Given

Pedestrian intoxicated

Yes (81) (51) ---- (132)

No (225) (552) --- (777)

Total: (306) (603) --- (909)

Let P(P) = the probability that the pedistrian was intoxicated

Let P(D) = T probability that the diriver was intoxicated

To calculate P(D or P)?

P(D or P) is given as P(D) + P(P) - P(P and D)

P(P) = 306/909

P(D) = 132/909

P(P and D) = 81/909

P(P or D) = 306/909 + 132/909 - 81/909

P(P or D) = 357/909

P(P or D) = 0.3927

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20/60+15/60=35/60&gt;<br> What dose it equal
stepladder [879]

Answer:

\dfrac{7}{12}

Step-by-step explanation:

1. Find the Greatest Common Factor of the numerator and denominator.

The prime factors of 35 are             <u>5</u>,     7,                              35  

The prime factors of 60 are 2, 3, 4, <u>5</u>, 6,     10, 12, 15, 20, 30,      60

The only common factor of 35 and 60 is 5.

2. Divide the numerator and denominator by the Greatest Common Factor.

\dfrac{35}{60} = \mathbf{\dfrac{7}{12}}

8 0
4 years ago
Twenty words were randomly selected from two textbooks. Each set gives the number of letters in each of the twenty words for tha
Alborosie

Answer:

k = 13The smallest zero or root is x = -10

Step-by-step explanation:

you can write "x^2" to mean "x squared"

f(x) = x^2+3x-10

f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5

f(x+5) = (x^2+10x+25)+3(x+5)-10

f(x+5) = x^2+10x+25+3x+15-10

f(x+5) = x^2+13x+30

Compare this with x^2+kx+30 and we see that k = 13

Factor and solve the equation below

x^2+13x+30 = 0

(x+10)(x+3) = 0

x+10 = 0 or x+3 = 0

x = -10 or x = -3

The smallest zero is x = -10 as its the left-most value on a number line.

7 0
3 years ago
What is -1/9(5g-3)+2/9g Simplified
Blababa [14]

Answer:

-g/3+1/3

Step-by-step explanation:

8 0
3 years ago
Dose anyone know the answer
just olya [345]

The answer is the D ( the last one)

6 0
3 years ago
What is the area of the shaded region below?
vaieri [72.5K]

Answer:

Step-by-step explanation:

Remark

The triangle with the shaded region makes exactly 1/4 of the entire circle. So the plan is to find the area of the circle and divide by 4. That gives you the area of the triangle and the shaded region. Then you find the area of the triangle and subtract it from what you just found.

Area of the circle

Area of the circle = pi * r^2

r = 12 cm

pi = 3.14

Area of the circle = 3.14 * 12^2

Area of the circle = 3.14 * 144

Area of the circle = 452.16 cm^2

Area of 1/4 of the circle

Area of 1/4 of the circle = (1/4)*452.16

Area of 1/4 of the circle = 113.04

Area of the triangle

b = r

h = r

b = 12 cm

h = 12 cm

Area = 1/2 b * h

area = 1/2 * 12 * 12

area = 72

Area of the shaded part

Shaded part = area of 1/4 of the circle - area of triangle

Area shaded part = 113.04 - 72 = 41.04

Answer area of shaded part = 41.04

7 0
3 years ago
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