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guajiro [1.7K]
3 years ago
13

And please explain it?

Mathematics
1 answer:
Brums [2.3K]3 years ago
4 0
You probably jsut need to use law of cosines in order to solve for angle A

c^2 = a^2+b^2 -2ab \cos C
or
a^2 = c^2+b^2 -2cb \cos A
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Solve for m. -19m − 19 = 4m − 4m + 19
dangina [55]
-19m-19 = 4m-4m+19
-19m-19 = 0+19
-19m = 19+19
-19m = 38
m = 38÷(-19)
m = -2
7 0
3 years ago
8. The area of the bigger square at the picture is 32. What is the area of
Karolina [17]

Answer:

16 is the awnser or at least I belive

8 0
2 years ago
Iist two different combinations if coins,each with value of 30% of a dollar.(ex: 3 dimes) PLS HELP ME
posledela

Answer:

6 nickles

2 dimes 2 nickles

1 quarter 1 nickle 5 pennys

8 0
2 years ago
Find the distance between the points (-3,2) and (4,-5)
alexandr1967 [171]
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6 0
3 years ago
It is believed that 3% of people actually have this predisposition. The genetic test is 99% accurate if a person actually has th
fiasKO [112]

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
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