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8090 [49]
3 years ago
7

The test to detect the presence of the hepatitis B virus is 97% accurate for a person who has the disease and 99% accurate for a

person who does not have the disease. If 0.55% of the people in a given population are infected, what is the probability that a randomly chosen person gets an incorrect result?. . 0.98455. . 0.000165. . 0.009945. . 0.001011
Mathematics
1 answer:
Hoochie [10]3 years ago
3 0
The probability tests to detect the presence of hepatitis B:
P (presence)= 0.97 (true)  0.03 (false)
P (absence)= 0.99 (true)  0.01 (false)

P(infected)=0.0055
P(not infected)= 0.9945

To have an incorrect result:
P[infected and false from P(presence)] + P[not infected and false from P(absence)]

=0.0055*0.03+0.9945*0.01= 0.01011

The answer is<span> 0.01011 </span>
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4-2 3/5 how can I get the answer to this problem
atroni [7]
4= 4/1 as a fraction, and you must make 2 3/5 into a improper fraction, to do that you must multiply the denominator times the whole number and add the numerator so 5x2=10 and 10+3=13 so the numerator now turns into 13 and the denominator stays the same (5) so now you have 4/1 - 13/5 but you can’t still subtract that so find the least common denominator of 4/1 and 13/5 which is 5 so now we have 20/5 - 13/5 which equals 7/5 now you have your answer
6 0
3 years ago
Factor completely 10x3 + 4x4 + 8x3
Gwar [14]
10x3 = 30
4x4=16
8x3 =24
ADD SUM OF NUMBERS
30+16+25
= 70
ANSWER = 70
6 0
4 years ago
Find the value of x, y, z in the rhombus below
galben [10]

Answers:

  • x = -28
  • y = -12
  • z = -11

===========================================================

Explanation:

Any rhombus is a parallelogram, but not the other way around.

For any parallelogram, the opposite angles are congruent.

-8y-8 = 88

-8y = 88+8

-8y = 96

y = 96/(-8)

y = -12

Also, for any parallelogram, the adjacent angles are supplementary (meaning they add to 180).

(-3x+8) + (88) = 180

-3x+96 = 180

-3x = 180-96

-3x = 84

x = 84/(-3)

x = -28

And we can also say,

88 + (-9z-7) = 180

-9z+81 = 180

-9z = 180-81

-9z = 99

z = 99/(-9)

z = -11

5 0
2 years ago
Write the equation for a line that passes through the points (5,5) and (7,-5)
julia-pushkina [17]
This equation would be equal to y = -5x + 30
3 0
3 years ago
Read 2 more answers
Show work too if possible
coldgirl [10]

The equation of the line in slope intercept form is y = 2x - 2.

<h3>How to find the equation of a line?</h3>

The equation of a line can be represented in different form such as slope intercept form, point slope form, standard form and general form.

The equation of a line can be represented in slope intercept form as follows:

y = mx + b

where

  • m = slope
  • b = y-intercept

Therefore, the slope of the line can be found as follows:

using (0, - 2)(2, 2)

m = 2 + 2 / 2 - 0

m = 4 / 2

m = 2

Therefore, the y-intercept can be solved as follows:

using (0, -2)

y = 2x + b

-2 = 2(0) + b

b = -2

Therefore, the equation is y = 2x - 2

learn more on equation of a line here: brainly.com/question/14200719

#SPJ1

8 0
2 years ago
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