1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alona [7]
2 years ago
6

A study by a reputable research organization found that when presented with prints from the same​ individual, a fingerprint expe

rt will correctly identify the match ​% of the time. In​ contrast, a novice will correctly identify the match ​% of the time. Consider a sample of different pairs of​ fingerprints, where each pair is a match. Complete parts a and b below. a. What is the probability that an expert will correctly identify the match in all pairs of​ fingerprints? The probability is nothing. ​(Round to four decimal places as​ needed.)
Mathematics
1 answer:
Degger [83]2 years ago
8 0

Answer:

0.5578

Step-by-step explanation:

Fingerprint correctly match 92 % of the time.

A novice that will correctly identify a match 75​% the time.

Each of the attempts of matching a fingerprint with the individual is independent.

The number of pairs are 7.

a). So the probability that the expert will identify every pair correctly is

= 0.92 x 0.92 x 0.92 x 0.92 x 0.92 x 0.92 x 0.92= 0.927 = 0.5578

You might be interested in
What is the value of y in the equation 2 + y = −3?<br> -1<br> -5<br> 1<br> 5
Thepotemich [5.8K]
To do this subtract 2 from each side of the equation to get y = -5, so the value of y in this is -5. Hope this helps!
7 0
3 years ago
Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8? Quadratic formula: x
Lynna [10]

ANSWER

1.39

EXPLANATION

The given quadratic equation is

0 = 2 {x}^{2}  + 3x - 8

This is the same as,

2 {x}^{2}  + 3x - 8 = 0

Comparing to

a {x}^{2}  + bx  + c = 0

We have

a=2, b=3,c=-8

Using the quadratic formula, the solution is given by:

x =  \frac{ - b \pm \:  \sqrt{ {b}^{2}  - 4ac} }{2a}

We substitute the values to get,

x =  \frac{ - 3\pm \:  \sqrt{ {3}^{2}  - 4(2)( - 8)} }{2(2)}

x =  \frac{ - 3\pm \:  \sqrt{ 73} }{4}

The positive root is

x =  \frac{ - 3 + \:  \sqrt{ 73} }{4} = 1.39

to the nearest hundredth.

4 0
3 years ago
Read 2 more answers
Vernon's work for finding the value of x is shown below. Lines A C and B D intersect at point E. Angle A E D is (16 x + 8) degre
Marta_Voda [28]

Answer:

<em>No, he should have set the sum of ∠AED and ∠DEC equal to 180°, rather then setting ∠AED and ∠DEC equal to each other</em>

Step-by-step explanation:

Find the diagram attached

If line AC and BD intersects, then m<AED + m<DEC = 180 (sum of angle on a straight line is 180 degrees)

Given

m<AED = 16x+8

m<DEC = 76 degrees

16x + 8 + 76 = 180

16x + 84 = 180

16x = 180-84

16x = 96

x = 96/16

x = 6

Hence the value of x is 6

Hence the correct option is <em>No, he should have set the sum of ∠AED and ∠DEC equal to 180°, rather then setting ∠AED and ∠DEC equal to each other</em>

5 0
2 years ago
Read 2 more answers
The sum of three consecutive odd integers is 17 less than four times the smallest integer
Lilit [14]

x = smallest \: int \\ x + (x + 2) + (x + 4) = 4x - 17 \\ 3x + 6 = 4x - 17 \\ 23 = x \\ numbers = 23 \: 25 \: 27
4 0
3 years ago
In 1997 there were 11,012 licensed drivers over age 55 involved in fatal crashes. There
san4es73 [151]

Answer:

Step-by-step explanation:

No because there could simply be more older drivers on the road.

8 0
2 years ago
Other questions:
  • Make a the subject of:<br> v = u + at
    12·1 answer
  • Describe the transformations that will map triangle A to triangle B and illustrate the similarity between the two triangles
    8·2 answers
  • Every year a man is paid $500 more than the previous year. If he receives $17,800 over four years, what was he paid in the first
    9·2 answers
  • 1. The function h is the sum of the functions f(x)=3x+5 and g(x)=2x^2 - 6x - 2. Which represents h? A.h(x) = 5x^2 - x - 2 B. h(x
    11·1 answer
  • Please answer this question
    7·1 answer
  • PLEASE QUICKLY HELP !!!!!
    10·1 answer
  • What is true about this shape?
    11·1 answer
  • Boris bought 3 CDs that were each the same price. Including sales tax, he paid a total of $37.20. Each CD had a tax of $1.30. Wh
    8·2 answers
  • Help. will give brainliest. please hurry!!! &lt;3
    6·1 answer
  • Find the number that makes the ratio equivalent to 1:9.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!