Suppose 5% of the population have a certain disease. A laboratory blood test gives a positive reading for 95% of people who have the disease. What is the probability of testing positive and having the disease?

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Answer 1

Answer:

Answer:

The probability of testing positive and having the disease is 4.75%.

Step-by-step explanation:

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Find the following when a = -1, b = 2, c = -1/4
(4b - 3)/(2a) -1

Answers

We substitute the given into the equation
given: a=-1, b=2, c= $(-1)/(4)$
=( $(4b-3)/(2a)$ -1
= $(4(2)-3)/(2(-1))$ -1
= $(8-3)/(-2)$ -1
= $(5)/(-2)$ -1
to continue, we can either find a common denominator or change the fraction to decimal.
Fraction to Decimal:
$(5)/(-2)$ =-2.5
Equation=-2.5-1=-3.5
OR Common Denominator:
= $(5)/(-2)$ $(-1)/(1)$ × $(-2)/(-2)$ (denominator should be -2=common)
= $(5)/(-2)$ + $(2)/(-2)$
= $(7)/(-2)$
which also = to -3.5

Given:AB||CD .If the coordinates of point A are (8, 0) and the coordinates of point B are (3, 7), the y-intercept of AB is____ ? If the coordinates of point D are (5, 5), the equation of line CD is y___ = ___x + ____

Answers

(8,0)(3,7)
slope = (7-0) /(3-8) = -7/5

y = mx + b
slope(m) = -7/5
(3,7)

7 = -7/5(3) + b
7 = -21/5 + b
7 + 21/5 = b
35/5 + 21/5 = b
56/5 = b

y = -7/5x + 56/5 <=== the y int of AB is 56/5

y = mx + b
slope(m) = -7/5
(5,5)

5 = -7/5(5) + b
5 = - 7 + b
5 + 7 = b
12 = b

y = -7/5x + 12 <=== equation of line CD

Answer:

first blank : 56/5

second blank : -7/5

third blank : 12

Step-by-step explanation:

What polynomial must be added to x^2-2x+6 so that the sum is 3x^2+7x?

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2x^2+9x-6 i found this by subtracting 3x^2+7x from the other equation

What does this mean?

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0 is less than t is less than or equal to 10

BRAINLIEST IF CORRECTThere are n gallons of oil. After m gallons have been used then, in terms of n and m, what percent of oil remains? What percent was used?