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Igoryamba
3 years ago
6

Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4–x and y = 2x + 3 intersect are the s

olutions of the equation 4–x = 2x + 3.
Part B: Make tables to find the solution to 4–x = 2x + 3. Take the integer values of x between −3 and 3.

Part C: How can you solve the equation 4–x = 2x + 3 graphically?
Mathematics
1 answer:
geniusboy [140]3 years ago
6 0
The x cordinates help to solve things like 2x+3=5
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3 years ago
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It is believed that 3% of people actually have this predisposition. The genetic test is 99% accurate if a person actually has th
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Answer:

Required Probability = 0.605

Step-by-step explanation:

Let Probability of people actually having predisposition, P(PD) = 0.03

Probability of people not having predisposition, P(PD') = 1 - 0.03 = 0.97

Let PR = event that result are positive

Probability that the test is positive when a person actually has the predisposition, P(PR/PD) = 0.99

Probability that the test is positive when a person actually does not have the predisposition, P(PR/PD') = 1 - 0.98 = 0.02

So, probability that a randomly selected person who tests positive for the predisposition by the test actually has the predisposition = P(PD/PR)

Using Bayes' Theorem to calculate above probability;

 P(PD/PR) = \frac{P(PD)*P(PR/PD)}{P(PD)*P(PR/PD)+P(PD')*P(PR/PD')}

                   = \frac{0.03*0.99}{0.03*0.99+0.97*0.02} = \frac{0.0297}{0.0491} = 0.605 .

7 0
3 years ago
The family ate 1/4 of banana bread and 3/4 of blueberry bread. What fraction of that bread was left over
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1/4 +3/4=4/4 bread was left over.
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Answer:

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8 0
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