1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Varvara68 [4.7K]
3 years ago
10

sadie travels through two intersections with traffic lights as she drives to work. The traffic lights operate inependently. The

probability that both lights will be red when she reaches them is 0.22. The probability that the first light will be rerd 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:
Mariana [72]3 years ago
6 0

Answer:

The probability that the second light will be red when she reaches it is 0.4

Step-by-step explanation:

Given the two events are independent

Hence, the probability of both the red light is (P1) * (P2) = 0.22

The probability of first light being red = probability of both the intersections to have red light + probability that the first light will be rerd and the second light will not be red

probability of first light being red =  0.22 + 0.33 = 0.55

(P1) * (P2) = 0.22

Substituting the given values, we get -

0.55 * P2 = 0.22

P2 = 0.4

You might be interested in
Maria’s suitcase has a mass of 14 kilograms. Her sister’s suitcase
nadya68 [22]

Answer:

Maria

Step-by-step explanation:

Marias suitcase is heavier as 1600 grams to kg is 1.6kg which is less than Marias suitcase which weighs 14kg hope this helps:)

7 0
2 years ago
20 is 40% of what number
pantera1 [17]

it depends what the number is

6 0
3 years ago
Read 2 more answers
P and W are twice-differentiable functions with P(7)=2(W(7)). The line y=9+2.5(x-7) is tangent to the graph of P at x=7. The lin
fiasKO [112]

Using the product rule, we have

m(x) = x W(x) \implies m'(x) = xW'(x) + W(x)

so that

m'(7) = 7W'(7) + W(7)

The equation of the tangent line to <em>W(x)</em> at <em>x</em> = 7 has all the information we need to determine <em>m'</em> (7).

When <em>x</em> = 7, the tangent line intersects with the graph of <em>W(x)</em>, and

<em>y</em> = 4.5 + 2 (7 - 7)   ==>   <em>y</em> = 4.5

means that this intersection occurs at the point (7, 4.5), and this in turn means <em>W</em> (7) = 4.5.

The slope of this tangent line is 2, so <em>W'</em> (7) = 2.

Then

m'(7) = 7\cdot2 + 4.5 = \boxed{18.5}

4 0
3 years ago
Michael put the following items in his shopping basket
lesantik [10]

Answer:

c. $9

Step-by-step explanation:

$3.98 + $4.19 + $0.79 = $8.96

Round to the nearest whole number which would be 9

4 0
3 years ago
Evaluate 3xy²-y³ for x=-1 and y=2.<br><br>help.​
yanalaym [24]
The answer to this problem is -20
7 0
2 years ago
Read 2 more answers
Other questions:
  • Suppose X and Y are random variables with joint density function. f(x, y) = 0.1e−(0.5x + 0.2y) if x ≥ 0, y ≥ 0 0 otherwise (a) I
    10·1 answer
  • 17) Candy brought 30 cookies to a party. List all the ways she can arrange them on a plate in equal rows.
    8·1 answer
  • Find x if h(x)=-2<br> Please Helppp :) ill mark brainliest
    6·2 answers
  • Problem 7-35 A satellite range prediction error has the standard normal distribution with mean 0 NM and standard deviation 1 NM.
    10·1 answer
  • A football team scored 34 points in their first game, 21 points in their second game, 9 points in their third game, and 28 point
    11·2 answers
  • What is the relation between the trigonometric ratios tan(R) and tan(J)? Please answer ASAP!
    14·1 answer
  • What is the smallest number that has 1,2,3,4, and 5 as factors
    8·1 answer
  • Which expression uses the associative property to make it easier to evaluate
    5·1 answer
  • The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a s
    8·1 answer
  • A bag contains A markers, 3/8 of which are red. How many other color markers are in the bag?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!