A drag racer has two parachutes, a main and a backup, that are designed to bring the vehicle to a stop (combined with the brakes) after the end of a run. Suppose that the main chute deploys with probability 0 . 95, and that if the main fails to deploy, the backup deploys with probability 0.999.

Required:
a. What is the probability that one of the two parachutes deploys?
b. What is the probability that the backup parachutes deploys?

Answers

Answer 1

Answer:

a. 0.99995 = 99.995% probability that one of the two parachutes deploys

b.0.04995 = 4.995% probability that the backup parachutes deploys

Step-by-step explanation:

a. What is the probability that one of the two parachutes deploys?

Either the first deploys(with probability 95%), or the first does not deploy(probability 5%) and the second does(probability 99.9%). So

[tex]p = 0.95 + 0.05*0.999 = 0.99995[/tex]

0.99995 = 99.995% probability that one of the two parachutes deploys

b. What is the probability that the backup parachutes deploys?

The first does not deploy(probability 5%) and the second does(probability 99.9%). So

[tex]p = 0.05*0.999 = 0.04995[/tex]

0.04995 = 4.995% probability that the backup parachutes deploys


Related Questions

help please. I need ​

Answers

Answer:

the slope is= 3/2

y= (3/2)x + (-4)

What is the value of x in the equation below?

Negative 3 minus (negative 8) minus (negative 2) = x

Answers

Silver for x

-3 - (-8) - (-2) = x

Switch the equation to make x on the right

x = -3 - (-8) - (-2)

x = 5 - (-2)

x = 7

• A negative minus a negative will always evaluate to a positive.

• A positive minus a negative will always evaluate to a positive.

Answer:

D

Step-by-step explanation:

Took the test ;)

someone pls hurry and help !

Answers

Answer: I think false

solve -3x-2y=2, 9x-5y=-28 using the elimination method

Answers

The answer is the picture. Hope this helped.

Someone please help and thank you

Answers

Answer:

7 : 3

Step-by-step explanation:

Divide both numbers by 6

Answer:

Step-by-step explanation:

42:18=42/18=7/3=7:3

I hope it help you

this is so easy

Pls help me this is 7th grade math

Answers

Answer:

118 degrees

Step-by-step explanation:

180-62 = 118

Find the solution to each equation mentally or use your calculator. (do the opposite of the number on the left side of the equation)

A: 30+a=40


B: 500+b=200


C: −1+c=−2


D: d+3,​567=0

Answers

A) a=10

B) b= -300

C) c= -1

D) -3567

Need help asap please

Answers

It’s the 4 th one I try ink

Answer:

the 4th one hope this helps

help me asap now pls

Answers

Answer:

b=60a

Step-by-step explanation:

sketch the graph y=x^2+2x+3, indicating clearly the coordinates of any intersection and the coordinates of axes​

Answers

hope this helps you with your question

witch equation represents a linear function

Answers

Y=3x2+1
Hope this helped :)

difference between -20 and -17

Answers

Answer:

-3

Step-by-step explanation:

because it says difference and differences means subtract so -20-(-17)=-3

the difference is -3

A ski lift makes a 35° angle of elevation with the ground and takes passengers on a 6,550-foot ride up a mountain. Charlotte needs to figure out the elevation of the lift. Which equation and diagram can be used to model this problem?

Answers

Answer:

Top right one is the answer

Step-by-step explanation:

B :)

The elevation of the lift is equivalent to 11293.1 ft.

What is the angle of elevation?

The angle of elevation is an angle that is formed between the horizontal line and the line of sight.

Given is that a ski lift makes a 35° angle of elevation with the ground and takes passengers on a 6,550 foot ride up a mountain.

Assume the elevation to be [x] ft. We can find the elevation as -

sin (35°) = (6550/x)

x = {6550/sin(35°)}

x = (6550/0.58)

x = 11293.1 ft

Therefore, the elevation of the lift is equivalent to 11293.1 ft.

To solve more questions on Angle of elevation, visit the link below-

https://brainly.com/question/29008290

#SPJ2

Angle 1 and Angle 2 are a linear pair. Angle 1=x-15, and angle 2=x+77. Solve for x then find the measure of each angle.

Answers

Answer: x=59, angle 1= 44˚, angle 2= 136˚

Step by step explanation:

Linear pairs add to make 180˚.

So angle 1 + angle 2= 180˚

Therefore x-15+x+77= 180

Add the x’s to get 2x
And then -15+77 to get 62.

So 2x+62=180
Subtract 62 to get 2x=118
Then divide by 2 to get x=59

Then substitute the x value into the angle equations

So angle 1 will be 59-15 which is 44˚
And angle 2 will be 59+77 which is 136˚

The tape diagram below represents 100%.
100%
?
What percent is represented by the shaded area?
%

Answers

Answer: 50%

Step-by-step explanation:

The shaded portion is half of 100

Answer: 50%

Step-by-step explanation: Since the tape diagram in total represents 100%, and half of the tape diagram is shaded, this means 50% is shaded.

What is Four more than twice a number is -10?

Answers

4+2x=10
2x=10-4
2x=6
X=6/2
X=3

What is f(-3) if f(x) = 1/3x

Answers

Answer:

10

Step-by-step explanation:

I did this before and i got it right

find the sum of the first 31 terms of 4,11,18,...

Answers

Answer:

3379

Step-by-step explanation:

33 divided by a number Q.

Answers

Answer:

33/Q?

Step-by-step explanation:

im confused on what the problem is

what is 1/2 x 60 and what is 3/10 x 1,000​

Answers

1/2 x 60 = 30                                                           3/10 x 1000 = 300

cancel the common factor of 2                          simpplify the expression

Answer:

1/2 x 60= 30 and 3/10 x 1,000= 3,000

Step-by-step explanation:

Please help me ASAP........

Answers

Answer:

More on supplies than she earned in sales.

Answer:

She spent 25 dollars from her pocket. No profit

Step-by-step explanation:

Help please :)
And tell me the slope please

Answers

Answer:

[tex]\frac{ \frac{7}{3}}{\frac{1}{3}}[/tex]  is the slope

Step-by-step explanation:

rise over run

8x-6y=36
solve the linear equation

Answers

Answer:

The below is the answer to the equation. 4.5, 0

Step-by-step explanation:

f(x) = -x^2
Find f(3)

Answers

Answer:

9

Step-by-step explanation:

f(x) = -x^2

f(3) = -3^2

f(3) = 9

Please help Im confused

Answers

Answer is 40

15/3 = 5
8 x 5 = 40

Answer:

x=40

Step-by-step explanation:

to get from 3 to 15, you multiply by 5

multiply 8 by 5 and you get 40

x is 40

please give me brainliest!!<3

what is the equation of a line with a slope of -3 and a y-intercept of 9

Answers

Answer:

The answer to the question provided is y = -3x + 9.

someone pls help me with this problem , in a rush !!

Answers

Answer:

2.DB=7.5+7.5=15cm

3.DV=12.75+12.75=25.5

Step-by-step explanation:

Arya saves 30% of his montly paycheck for college. He earned $270 lst month. How much money did Arya save for college?

Answers

Answer:

she saved 900 dollars

Step-by-step explanation:

30/100=270/?

30x9=270

100x9=900

The shadow of a 60 foot pole is a 100 feet long. What is the angle of evaluation from the end of the shadow to the top of the pole?

Answers

Answer:

The angle is approximately [tex]31^{o}[/tex].

Step-by-step explanation:

The description i the given question can be represented with the sides of a right angled triangle.

Applying the appropriate trigonometric function, we have;

Tan θ = [tex]\frac{opposite}{adjacent}[/tex]

In the question, opposite side = 60 feet, and adjacent side = 100 feet.

Tan θ = [tex]\frac{60}{100}[/tex]

         = 0.6

θ = [tex]Tan^{-1}[/tex] 0.6

  = [tex]30.964^{o}[/tex]

θ = [tex]31^{o}[/tex]

The angle of elevation from the end of the shadow to the top of the pole is [tex]31^{o}[/tex].

Help me out with this question (geometry)

Answers

Answer:

116

Step-by-step explanation:

13x-1 = 2(6x+4)

13x-1 = 12x+8

x=9

Other Questions
A Swimming Pool is 50 feet long. Rima swims a distance of 2.5 feet every second. She wants to know how many seconds it takes her to swim across the pool. Please can someone do itpleaseeeeeeee Adventures of Huckleberry Finn 1. PART A: Which of the following best identifies a theme of theexcerpt?mewnOA children often do not understand the consequences of theiractions and can act cruelly towards other and one another as aresult.B Youthful naivety prompts children to want to imitate influentialideas in ways they don't always understand.Oc While young people have beautifully active imaginations, it isbetter to be old and wise than young and foolish.OD Strong family units help prevent crime and cruelty amonyounger family members. Can u pls help me with this question Suzie ate brunch at a restaurant. The bill came to $6 .If she left a 15% tip, how much was the tip 5x - 10y=-205x + 3y = 6Show work In the diagram shown above, the circles represent small balls that haveelectric charges. Ball 1 has a negative charge, and ball 2 is repelled by ball 1Next, you see that ball 2 repels ball 3 and that ball 3 attracts ball 4. What isthe electric charge on ball 4?Ball 4 may have either a positive or negative charge,Ball 4 has a negative charge.Ball 4 has a positive charge. PLEASE help if u know Spanish Ill mark you as brainlister The sum of 5 times a number and 3 is the same as the difference of the number and 9. Find the number what does y equal?...... . What are the two extremes on the health continuum? Any point on the parabola can be labeled(x,y)as shown.1. What are the distances from the point(x,y)(x,y)to the focus of the parabola and the directrix?Select two answers.distance to the focus:(x+3)2+(y3)2distance to the directrix:|y4|distance to the directrix:|x4|distance to the focus:(x2)2+(y+3)2distance to the focus:(x+3)2+(y2)2distance to the directrix:|y+4|2. What is the correct standard form of the equation of the parabola? 20X + 60X=204080 an exercise in which a muscle is tightened andthere is no body movement PLEASE I REALLY NEED HELP I OFFER 15 POINTS help plz need help now hurry 23. Homer's Odyssey is the story of:a. Odysseus in the Trojan Warb. Odysseus' return to IthacaC. Achilles' return to Troyd. Achilles fighting in the Trojan War What is the thermocline?beneath 200 meters, ocean water cools at a constant rate of 1C per 100 meters depththe ocean area near the polar regions where water temperatures coolwhere magma is forced up through the ocean floor along mid-ocean ridgesthe area off the continental shelf that declines to the ocean floor Tatiana is buying b number of books and m number of magazines at the book fair. The books cost $4 each and the magazines cost $2 each. Tatiana's total purchase can be shown with this expression: 4b+2m. Which expression is equivalent to 4b + 2m?A) 6bmB) 2(2b+2m)C) 2(2b+ m)D) 6(b+m) A cube has a mass of 42 grams and a volume of 15 cubic centimeters. What is its density? (Show your work or complete all problems for brainliest)