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vitfil [10]
3 years ago
15

PLEAZE THIS NEEDS TO BE QUICK

Mathematics
1 answer:
sesenic [268]3 years ago
3 0
Para lá lá no debes de inglês e o de inglês
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Plss help me with this do not add any links or they will be reported and plss do not answer just for the points thank you!!!!!!
Sonbull [250]

Answer:

x=-4/3+y/3. y=-11/4+3x/4

Tap to view steps...

4 0
2 years ago
Read 2 more answers
Suppose that 40 percent of the drivers stopped at State Police checkpoints in Storrs on Spring Weekend show evidence of driving
lesantik [10]

Answer:

a) 0.778

b) 0.9222

c) 0.6826

d) 0.3174

e) 2 drivers

Step-by-step explanation:

Given:

Sample size, n = 5

P = 40% = 0.4

a) Probability that none of the drivers shows evidence of intoxication.

P(x=0) = ^nC_x P^x (1-P)^n^-^x

P(x=0) = ^5C_0  (0.4)^0 (1-0.4)^5^-^0

P(x=0) = ^5C_0 (0.4)^0 (0.60)^5

P(x=0) = 0.778

b) Probability that at least one of the drivers shows evidence of intoxication would be:

P(X ≥ 1) = 1 - P(X < 1)

= 1 - P(X = 0)

= 1 - ^5C_0 (0.4)^0 * (0.6)^5

= 1 - 0.0778

= 0.9222

c) The probability that at most two of the drivers show evidence of intoxication.

P(x≤2) = P(X = 0) + P(X = 1) + P(X = 2)

^5C_0  (0.4)^0  (0.6)^5 + ^5C_1  (0.4)^1  (0.6)^4 + ^5C_2  (0.4)^2  (0.6)^3

= 0.6826

d) Probability that more than two of the drivers show evidence of intoxication.

P(x>2) = 1 - P(X ≤ 2)

= 1 - [^5C_0  (0.4)^0  (0.6)^5 + ^5C_1  (0.4)^1  (0.6)^4 + ^5C_2 * (0.4)^2  (0.6)^3]

= 1 - 0.6826

= 0.3174

e) Expected number of intoxicated drivers.

To find this, use:

Sample size multiplied by sample proportion

n * p

= 5 * 0.40

= 2

Expected number of intoxicated drivers would be 2

7 0
2 years ago
Please help its timed​
Anika [276]

Answer:

no solutions

Step-by-step explanation:

3 0
2 years ago
What is 3^3/2 equal to?
antoniya [11.8K]

Answer:

D. 2^3/2

Explanation:

3 3/2

= ²√3³

= ²√27

Hope this helped! :D

6 0
3 years ago
Read 2 more answers
Solve the inequality
gogolik [260]

Answer:

x>=3

Step-by-step explanation:

5x-6>=9

5x>=9+6

5x>=15

x>=15/5

x>=3

7 0
3 years ago
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