A student in the sophomore class has an equal chance of being in room 1, 2, 3, 4, or 5 for any of her six classes. What is the probability that she will be in room 3 for at least one class?

a.0.80
b.0.74
c.0.26
d.0.14

Answers

Answer 1

Answer:

b might be correct

Step-by-step explanation:

I hope this helps


Related Questions

WILL GIVE BRAINLIEST

Which expression correctly represents "nine less than the quotient of a number and four, increased by three”?

A. N/4 - 9 + 3
B. 4/N - 9 + 3
C. 9 - n/4 + 3
D. 9 - 4/n + 3

Answers

Answer:

c

a fraction bar Is just a division bar, it's c.

On a flight from San Diego to Baltimore 18 of 156 seats on empty. What is the ratio of filled seats to empty seats on the flight

Answers

Answer:

Step-by-step explanation:

plz help me with this math question

Answers

Answer:

8^2-60 ,   11^1   , 2^2x5

Step-by-step explanation:

2^2= 4

4 x 5 = 20

11^1= 11

8^2= 64

64-60 = 4

Plan help with one I really need it

Answers

Answer:

Step-by-step explanation:

1) Area of garden = side * side

                             = 10* 10

                             = 100 Sq.m

2) Area of each flowerbed = 1*1 = 1 sqm

3)  Area of 4 flowerbed = 1 * 4 = 4 sqm

 Area of the remaining garden = Area of garden - area of 4 flower bed

                                                    = 100 - 4

                                                    = 96 sq.m

4) Length of the fence = 4 *side

                                      = 4 * 10 = 40 m

5)  Cost of planting in the remaining garden = 96 * 20

                                                                          = ₹ 1920

Im giving 30 points pls help

Answers

Step-by-step explanation:

Pathagory and Theorem

a^2+b^2=c^2

(x-3)^2+(x-4)^2=6^2

expand:

2x^2-14x+25=36

2x^2-14x-11=0

x=(\sqrt{71}+7)/2

perimeter=(x-3)+(x-4)+6=2x-1

insert the value for x into 2x-1

[tex]\sqrt{71}[/tex]+6=perimeter

Hope that helps :)

9514 1404 393

Answer:

  2x -1

Step-by-step explanation:

The perimeter is the sum of the side lengths.

  P = 6 + (x -4) + (x -3)

  P = 2x -1 . . . . . . collect terms

The perimeter is 2x -1.

_____

Additional comment

There is nothing in the problem statement that suggests this is a right triangle. Without knowing at least one angle, we cannot solve for a numerical value for the perimeter. The problem title suggests we're to leave the result in polynomial form.

Find the length of the third side. If necessary, write in simplest radical form 8 5​

Answers

Answer: c = [tex]\sqrt{89}[/tex]

8² + 5² = c²

64 + 25 = c²

[tex]\sqrt{89}[/tex] = [tex]\sqrt{c^{2} }[/tex]

[tex]\sqrt{89}[/tex] = c

The length of the third side is 9.4.

What is the Pythagorean theorem?

Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.

We have,

Applying Pythagorean theorem.

Third side = x

x² = 8² + 5²

8 x 8 = 64 and 5 x 5 = 25

So,

x² = 64 + 25

x² = 89

x = √89
x = 9.4333

Rounding to the nearest tenth

x = 9.4

Thus,

The length of the third side is 9.4.

Learn more about the Pythagorean theorem here:

https://brainly.com/question/14930619

#SPJ2

The letters for the word SCHOOL are placed in a hat. What is the probability of drawing the letter o out of the hat?

Answers

Answer: 2/6 or 1/3

Step-by-step explanation:

SCHOOL has 6 letters in it and two O's. Therefore, it would be 2/6 or simplified it would be 1/3.

That was FUN!

You have a cup containing 4 green skittles, 5 red skittles, 7 yellow skittles, and 10 purple skittles. What is the probability of not pulling a purple skittle?

Answers

Answer:

about 62%

Step-by-step explanation:

add all of the numbers

subtract the number of purple skittles

do 16÷26

multiply your answer by 100

get 61.5

round up

A 30-foot long escalator forms a 41° angle at the second floor. Which is the closest height of th
141
30 feet
A 20 feet
B. 22.5 feet
C. 24.5 feet
D. 26 feet

Answers

Answer:

[tex]\huge\boxed{\text{B) } 22.5 \ \text{feet}}[/tex]

Step-by-step explanation:

We can use basic trigonometric functions to find the closest height of the escalator.

Let's set up a picture from what we already know. The length of the escalator is 30 feet, and it forms a 41 degree angle with the top. Since it will form a 90 degree angle with the ground, we can find the angle between the ground and the beginning of the escalator.

Since all triangles have an angle sum of 180:

[tex]90+41+x=180[/tex] [tex]131+x=180[/tex] [tex]x = 180-131[/tex] [tex]x=49[/tex]

Now we know that the triangle looks something like this.

                   /  | 41°

                 /    |

               /      |

            /         |

30      /           |

       /              |                                                

     /                |

  /                   |

/__________| 90°

49°

We need to find the length of the side between the 41 and 90° angle.

To find which trigonometric operation to use on this triangle, we can use the acronym SOH CAH TOA.

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

We can use the sine of the 49 degree angle (opposite / hypotenuse) to find our missing side (since we know the hypotenuse).

Let's set up an equation and solve with our calculator.

[tex]\text{sin}(49) = \frac{\text{opposite}}{\text{hypotenuse}}[/tex] [tex]\text{sin}(49) = \frac{x}{\text{30}}[/tex] [tex]30 \cdot \text{sin}(49) = x[/tex]

We can calculate the sine of 49 with our calculator. We'd end up multiply 30 and that value and get 22.6.

Since the closest value to 22.6 on the answer choices is 22.5, the correct answer would be B) 22.5 feet.

Hope this helped!

Answer:

The answer is B.

Step-by-step explanation:

B. 22.5 feet


Find the domain of the graphed function

Answers

Answer:

D.   2 ≤ x ≤ 5

Step-by-step explanation:

Notice that there are no points on the graph for x ≤ 2 and x ≥ 5.  Or another way to look at it is that the x's are between 2 and 5, inclusive.

The domain is the set of possible x values.  Therefore,  2 ≤ x ≤ 5 is the set of  values for the domain

The total cost of a tablet device comprises the cost of material, labour and overheads in the ratio 3:4:1. The cost of material is $315. What is the total cost of the tablet?​

Answers

Answer:

The total cost of the tablet is $840

Step-by-step explanation:

Here, we want to calculate the total cost

Let the total cost be $x

From the ratio, the total ratio is 3 + 4 + 1 = 8

so,;

3/8 * x = 315

3x = 8 * 315

x = 8/3 * 315

x = 8 * 103

x = 840

What are the values of x in the quadratic equation below? Select two options. ( x − 2 ) ( x + 4 ) = 0

Answers

The two options are

x = -4

x = 2

What symbol makes the statement true?
4/6 3/8​

Answers

4/6 is 0.666666666666667
3/8 is 0.375
So 4/6>3/8

Answer:

>

Step-by-step explanation:

because

16/24 > 9/24 :)

Part B
What is the density of the plne log? Show your work.


Answers

Answer:

Please Provide the an attachment.Then i can show u my answer

Please help ASAP Gavin works as a salesperson at an electronics store and sells phones and phone accessories. Gavin earns a $12 commission for every phone he sells and a $3.50 commission for every accessory he sells. On a given day, Gavin made a total of $135 in commission and sold 12 more accessories than phones. Determine the number of phones sold and the number of accessories sold.

There were
____phones sold and
____ accessories sold.

Answers

Answer:

6 phones and 18 accessories

Step-by-step explanation:

12P + 3.50A = 135

A = 12 + P

12P + 3.50(12 + P) = 135,

12P + 42 +3.50P = 135

15.50P = 93

P = 6 phones

A = 12 + 6 = 18 accessories

What is another word for zeros?
1. roots
2. axis of symmetry
3.vertex
4. y-intercept

Answers

Answer:

I think it's vertex bestie not sure tho lmk if it's wrong

12) help pls I have the answer I just need to show the work

Which expression is correct for “y”?

Answer: A

Answers

Answer:

y = tan-1 (31/23)

Formula: SOHCAHTOA

TOA: tan = opposite/adjacent

31 / 23 = 1.3478

tan-1 of 1.3478 is 53.4264

53.4264 = 53 (rounding to the nearest degree)

y = 53 degrees

What is the answer for the wuesy

Answers

Answer:

22

Step-by-step explanation:

6 divided 6 equals 1 and 1 times 22 equals 22

Brainliest ?

Find the missing angle.

Answers

31 degrees (vertically opposite angle)
31, they are opposite angles so they are equal

Please help this is timed

Large Sugar cubes measure 1/2 inch on each edge. They fit into a rectangular container that is 2 inches long, 1 1/2 inches wide and 1 1/2 inches tall.

The volume of each cube is _____.


____ sugar cubes will fit into the container.

Answers

Step-by-step explanation:

multiple 1/2 × 2 × 1 1/2

you can download Desmo calculator or write down what you multiple neatly on a piece of paper and use photo math

Which is the rationalized form of the expression sqrtx/sqrtx+sqrt7

Answers

Answer:

(x - √7*√x) / (x - 7)

Step-by-step explanation:

I suppose your expression is √x / (√x + √7)

(√x * (√x - √7)) / ((√x + √7) * √x - √7)) = (√x * √x - √7 * √x) / (x - 7)

= (x - √7*√x) / (x - 7)

Answer:

Its A

Step-by-step explanation:

I just took the test on edge

2x + 3 > 13

Whats the answer plz help

Answers

Answer:

In this case, you can simply treat the > sign like an = sign.  The only time you would need to worry about is when multiplying or dividing by negative numbers.

2x + 3 > 13

2x + 3 - 3 > 13 - 3

2x > 10

2x / 2 > 10 / 2

x > 5

3 time the sum of a number and 5 ​

Answers

the equation would be 3(x + 5)

Answer:

3(x+5) is the answer.

Which of the following shows the extraneous solution to the logarithmic equation below?

2 log Subscript 5 Baseline (x + 1) = 2
x = negative 6
x = negative 4
x = negative 2
x = negative 1

Answers

Answer:

A.-6

Step-by-step explanation:

on edg

Answer:

A) -6

Step-by-step explanation:

URGENT PLEASE HELP!!!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (39pts)

Answers

Answer:

Here is the answer I solved.

)) Evaluate the expression for b = 7.
11b - 75 =

Answers

Answer:

The answer is 2.

Step-by-step explanation:

11(7) - 75

77-75

=2

Are vacuoles small or large? PLS HELP I NEED THIS ANSWER FAST!

Answers

Answer:

large

Step-by-step explanation:

PLS HELP I NEED IT ASAP ILL MARK BRAINLIEST

Answers

Answer:

Earth : Moon

1 : 27

Step-by-step explanation:

24 hrs = 1 day

so the ratio is up there

Hope I helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

Find the percent of change. Round your answer to the nearest tent necessary, Please explain.

Original price: $185
New price: $160

Original number of students: 56
New number of students: 77

Answers

Answer:

No answer just clues

Step-by-step explanation:

x/100*160/1=185/1

y/100*56/1=77/1

I just can't do anymore metal math today, sorry.

please help
find the value of x in the isosceles triangle shown below.

Answers

Square root of 55 :):)

Answer:

x = square root of 55

x^2 = 8^2 - 3^2

x^2= 64 -9

x = square root of 55

Other Questions
What is the un-balanced equation for thisreaction?Mg +0 --> MgoMg + 02--> Mg02Mg + 02 --> Mgo Three charges are located at the vertices of a triangle, as shown. An isosceles triangle lying on its side. The two charges at the corners of the base of the isosceles triangle are labeled +5 C and +10 C. The top of the triangle is labeled +4 C with 4 vectors from it. The one east is labeled Y, the one west is labeled W, the one northeast is labeled X and the one southeast is labeled Z. Which vector best represents the net force acting on the +4 C charge in the diagram? W X Y Z Jamal is helping pack prize bags for the school carnival. He has 73 pencils to put into 16 bags. He wants to put the same number of pencils in each bag. How many pencils should he put in each bag? The diameter of a red blood cell is about 3 104 in. What is its diameter in centimeters? Betsy has $4.25 and her brother has $16.00 they want to buy two water guns that cost $12.99 each and a bag of water balloons that cost $4.79. Do they have enough money if so how much money will they have left over. If not how much more money will they need? Find the distance CD rounded to the nearest tenth c=(-5,4) D =(5,8) 3(b + 8) = b + 48 PORFAVOR con plantamiento operacion y resultado, y de paso me explique el temas nsd9ucancuqna :( amaba matematicas. doy corona What is the most commonly used facial composite software in the United States?A. FACESB. Identi-Kit 2000C. CompuSketchD. SuspectID Graph each pair of ordered pairs. Then find the distance between the points. Round to the nearest tenth if necessary. what instrument will be used to measure the volume of a box PLZ HELP FROM BLACK SHIPS BEFORE TROYHow did the Greeks respond to Ajaxs death? What did Calchas say he had to do? (pgs. 123 - 124)In what condition do Odysseus and Diomedes find Philoctetes?How does Philoctetes end up helping? (pgs. 124 - 127)What was the wooden horse trick? ( Explain how it was carried out) 1.7.2 Explain how the relevant strategy can be helpful if you are grieving loss of a loved one, also give an example of your explanation why do we need independent judiciary The slope of a line is 1/3. What is the slope of a line perpendicular to this line? An autocracy is a government in which one person has all the power. There are two main types of autocracy: a___and___(2 Points)Monarchy and democracyCommunism and socialismMonarchy and dictatorshipOligarchy and theocracy What key role did the location of the Tigris and the Euphrates river play on the development of Mesopotamia? Mesopotamia was settled between the two rivers to take advantage of the natural barrier produced by the Arabian Desert. Mesopotamia was settled between the two rivers to take advantage of the protection provided by the rivers. Mesopotamia was settled between the two rivers to take advantage of the fertile soil produced by floods. Mesopotamia was settled between the two rivers to take advantage of the drinking water provided by the Persian Gulf. hmhoo.com/assem stessment HM Growth Measuresmco.comGrowth Measure Math | Welcome, HAILEE KNOTTCiSave & ExitLast week Marisol made $147 for working 12 hours at the local park district. How much money will Marisol make if she works 15 hours next weeka$152.55$172.50$180.00$183.7577051Sklo Guys I need ur help I might as well just ask ur smarties for help ahah n yup Ill be brainlisting;)1) What have been the wider effect on the community of nuclear accidents? (Chernobyl) please this is quiz due in a hour ill up the points Question 7 of 10Which of the following is a tax-advantaged savings plan designed toencourage savings for future college costs?A. University planB. 529 planC. Scholarship planD. 592 plan