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Snowcat [4.5K]
3 years ago
15

Please solve this I don’t know how to do

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
7 0
C5cc5x4c4c4c5c56vv6cy6. 6 6v66
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Can someone help me plz!!
a_sh-v [17]

Answer:

C

Step-by-step explanation:

6 0
2 years ago
According to the American Lung Association, 7% of the population has lung disease. Of those having lung disease, 90% are smokers
postnew [5]

Answer:

Probability that a smoker has lung disease = 0.2132

Step-by-step explanation:

Let L = event that % of population having lung disease, P(L) = 0.07

So,% of population not having lung disease, P(L') = 1 - P(L) = 1 - 0.07 = 0.93

S = event that person is smoker

% of population that are smokers given they are having lung disease, P(S/L) = 0.90

% of population that are smokers given they are not having lung disease, P(S/L') = 0.25

We know that, conditional probability formula is given by;

                        P(S/L) = \frac{P(S\bigcap L)}{P(L)}  

                        P(S\bigcap L) = P(S/L) * P(L)

                                      = 0.90 * 0.07 = 0.063

So,  P(S\bigcap L) = 0.063 .

Now, probability that a smoker has lung disease is given by = P(L/S)

      P(L/S) = \frac{P(S\bigcap L)}{P(S)}

P(S) = P(S/L) * P(L) + P(S/L') * P(L')

       = 0.90 * 0.07 + 0.25 * 0.93 = 0.2955

Therefore, P(L/S) = \frac{0.063}{0.2955} = 0.2132

Hence, probability that a smoker has lung disease is 0.2132 .

7 0
3 years ago
evelyn rode her horse along a triangular path. The distance she traveled south was 5 times the distance she traveled east. Then
cricket20 [7]

(5x)^2 + x^2 = c^2

25x^2 + x^2 =c^2

sqrt 26 x ^ 2 = sqrt c^2

x sqrt 26= c

so answer is 6x + x sqrt 26

8 0
3 years ago
How do you the equation of the line that passes through point (-3,2) and is parallel to the line formed by the equation y = 4x +
hjlf

Answer:

y = 4x + 14

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 4x + 7 ← is in slope- intercept form

with slope m = 4

• Parallel lines have equal slopes , then

y = 4x + c ← is the partial equation

to find c substitute (- 3, 2 ) into the partial equation

2 = - 12 + c ⇒ c = 2 + 12 = 14

y = 4x + 14 ← equation of parallel line

3 0
2 years ago
Read 2 more answers
Angelica is five years less than double Jahiem’s age. Jahiem is 14 years old. How many years old is Angelica?
RoseWind [281]
Angelica is 23

Steps
Use the equation x=2j-5
Plug in jahiems age (14) for j and solve for c
3 0
2 years ago
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