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Karolina [17]
3 years ago
5

Ms. tucker travels through two intersections with traffic lights as she drives to the market. the traffic lights operate indepen

dently. the probability that both lights will be red when she reaches them is 0.22. the probability that the first light will be red and the second light will not be red is 0.33. what is the probability that the second light will be red when she reaches it?
Mathematics
1 answer:
sergij07 [2.7K]3 years ago
4 0
The probability of two independent events occurring one after the another is the product of these probabilities, i.e. P(red1,red2)=0.22

We have given that the probability of the first being red and the second not being red is 0.33,

The probability of the first light being red is P(red1)=0.33+0.22=0.55. 

And we know that these events are independent, then 

P(red1)*P(red2)=P(red1,red2)
0.55*P(red2)=0.22
P(red2)=0.4
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The slope-intercept form is written under the form of
y=mx+b where m represent the slope and y represent y-intercept. In this case, we know that the m is 8, but we don't have b yet. To find the answer, substitute (0,5) into an equation where y=5 and x=0
y=mx+b
y=8x+b
5=8(0)+b
5=b, so we have the complete y-intercept form which is y=8x+b
Or
You can you this
y-y1=m(x-x1) where point (x1,y1) represent point (0,5) in this case which led to:
y-y1=m(x-x1)
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Add 5 to each side
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y=8x+5 represent the slope-intercept form. Hope it help!
4 0
3 years ago
12 is 15% of what?<br> HELP
oksian1 [2.3K]

Answer:

80

Step-by-step explanation

Write down the equation: (15 / 100) * x = 12

Solve for x: x = 12 / (15 / 100)

x = (12 * 100) / 15

or, x = 80

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8 0
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Ms.Tao flies roundtrip twice yearly between Jacksonville and Los Angeles on business the distance between the two cites is 2,150
vlabodo [156]
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3 years ago
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enyata [817]

Answer:

128

Step-by-step explanation:

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2 years ago
At a school 159 students play at least one sport this is 60% of the students how many students are at the school !I need it fast
MaRussiya [10]

Answer:

Step-by-step explanation:

S(60/100)=159

60S=15900

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So there are 265 total students.

3 0
2 years ago
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