# Posts by Stephanie

Total # Posts: 1,218

**Math (Finite)**

A test for a certain drug produces a false negative 5% of the time and a false positive 8% of the time. Suppose 12% of the employees at a certain company use the drug. If an employee at the company tests positive, what is the probability that he or she does not use the drug?

**Math (Finite)**

An election between two candidates is held in two districts. The first district, which has 60% of the voters, votes 40% for candidate 1 and 60% for candidate 2. The second district, with 40% of the voters, votes 60% for candidate 1 and 40% for candidate 2. Who wins?

**Math (Finite)**

Find the probability that among five persons, at least two were born on the same weekday.

**Math (Finite)**

A calling card offers two methods of paying for a phone call. Method A charges $0.02 per minute but has a $0.6 connection fee. Method B charges $0.045 per minute but has no connection fee. Write the equations that show the total cost, y, of a call of x minutes for methods A ...

**Math (Finite)**

5. Let A = 1 4 2 3 and B = 3 -2 4 6 calculate the entry in the second row, second column in AB

**Finite Math**

11. As part of a weight reduction program, a man designs a monthly exercise program consisting of bicycling, jogging, and swimming. He would like to exercise at most 38 hours, devote at most 3 hours to swimming, and jog for no more than the total number of hours bicycling and ...

**Finite Math**

15 An appliance store sells two brands of televisions. Each Daybrite set sells for $425, and each Noglare set sells for $700. The store’s warehouse capacity for television sets is $400, and new sets are delivered only each month. Records show that customers will buy at ...

**Corporate Finance**

Building an Income Statement Papa Roach Exterminators, Inc., has sales of $586,000, costs of $247,000, depreciation expense of $43,000, interest expense of $32,000, and a tax rate of 35 percent. What is the net income for this firm?

**Math (Finite)**

A town council has 11 members, 6 Democrats and 5 Republicans. If a 3‐person committee is selected at random, what is the probability that Republicans make up the majority?

**Finite Math**

A town council has 11 members, 6 Democrats and 5 Republicans. If a 3‐person committee is selected at random, what is the probability that Republicans make up the majority?

**Math (Finite)**

If a 3]person committee is selected at random, what is the probability that Republicans make up the majority?

**Mathematics**

Two cars drive from town A to town B at constant speeds. The blue car travels 25 miles per hour and the red car travels 60 miles per hour. The blue car leaves at 9:30 am and the red car leaves at noon. The distance between the two towns is 150 miles. Who will get there first? ...

**Problem Solving**

Thanks! I thought so but that just seemed so simple too me. I thought there was a catch to it.

**Problem Solving**

Liz has 2 books of 100 stamps with 6 left over. Chelsea has 3 books of 100 stamps with 8 left over. If they put all their stamps together, how many stamps will they have?

**Language Arts 6th grade**

Oh and this is ActII

**Language Arts 6th grade**

This is from Phantom Toll Both. I am having trouble finding similarity and differences can you give me a hint of start me off that would be great. At least two ways which Tock and Humbug are alike and different

**Chemistry**

What volume of 1.45 H2SO4 is required to neutralize .050L of .75M KOH?

**Lanuage Arts**

Question For the last question of Lesson 6: Third Read: The Phantom Tollbooth, Act I Connections Education Language Arts 6 B Unit 3: Adventures and Imagination I do not understand which book to use for the answer. Plz can you help me I have tempory zero :/

**Biochem**

Describe the relationships among the major components that maintain Ca homeostasis. (Identify all the major factors which are involved in Ca homeostasis).

**Science**

Can you give me help understanding this question? A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she opens the parachute.

**Science**

Can you check my work PLzzzzz got alot of science for today.

**Science**

Can you plz check asp 1. Suppose the total momentum of two masses before a collision is 100 kg m/s. What is the total momentum of the two masses after they collide? (1 point) 0 kg m/s 50 kg m/s 100 kg m/s 200 kg m/s 2. What is the momentum of a 20.0 kg scooter traveling at 5....

**Math**

It is 1/7

**Science**

Thanks alot Got my grade up too :)

**Science**

Plz check it fast or just improve advice 9. Provide three statements that demonstrate the importance of units when describing motion. (3 points) Three statements that demonstrate the importance of units when describing motion are 1.unit i m/s indicate it is in SI unit 2.It ...

**Science 6 th grade**

Can you plz check this :0 True/False 1. Kilometers per hour describes the speed of an object. (1 point) true false * Multiple Choice 2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? (1 point) an airplane flying...

**math**

5.8 + 5.758

**math**

If i had a pizza, and i ate4/8 of the pizza and my sister ate 3/8 of the pizza, how much pizza did we eat

**math**

If

**College algebra**

8.8x10^3 hours in a year approximate how many in one year

**SS 6th grade**

Thank you some of them helped

**SS 6th grade**

Its about Roman empire and the fall of the Romans so basically all roman.

**SS 6th grade**

I have to study for a test which is called New Empires and New Faiths Unit Test. Do you have any websites that I could go to review or to practice?

**physics**

A 42.5 g marble is fired vertically upward using a spring gun. The spring must be compressed 7.0 cm if the marble is to reach a target 27.0 m above the gun. What is the change in gravitational energy of the marble during its ascent?

**math**

If you have a bag of alphabet tiles that contains one tile for each letter of the alphabet. What is the probability that you will pull a vowel?

**Math**

are you sure sureeee

**Math**

write the quotient of -4 and a number, which is then increased by the product of -13 and the number?

**algebra**

solve using ac method 10a^2-27ab+5b^2

**help! Physics**

I've been getting this question wrong so many times! What is the relationship between the coefficient of friction and the time that it takes the object to reach the bottom of the ramp?

**math**

the flour power bakery makes 200 cherry cheesecakes at a cost of $2.55 each. if a spoilage rate of 3% is anticipated, at what price should the cakes be sold to achieve a 35% markup based on cost?

**algebra**

if 240 widgets cost $36, what is the cost of 180 widgets?

**algebra**

the midpoint of a line segment is (3,4). one of the endpoints of that line segment is (7,4). what is the other endpoint?

**algebra**

if a school has 24 teachers and 480 students, what is the ratio of teachers to students?

**Science!!!**

Thanks

**Algebra**

Niko had his savings increased by 5% this year. He started with $350 in his account and calculated how much he had at the end of the year by using the following sets of calculations: $350×0.05=$17.50 $350+$17.50=$367.50 Find a single number that Niko could have ...

**Math**

What does it mean by fine a binomial expression for n in general terms of a?

**Math**

Suppose you find the ratio of the lengths of adjacent sides in a parallelogram. This ratio is equivalent to the ratio of the adjacent sides in another parallelogram. Are the figures similar? Explain.

**Social studies**

It's C. It says so on page 178 in the text book

**Math**

If someone could help me with these that would be great! :) Directions: Solve the equations. 1.) tan4x=1 Location on Unit Circle: Period: General Solution: 2.) sec xcsc x=2 csc x Location on Unit Circle: Period: General Solution:

**Math**

Hi! Can someone help me with these? I just learned about them yesterday but I'm really confused. All my teacher wants me to do is solve each equation and that's all the directions she gave. Thanks so much! 1.) 3cot^2 x-1=0 Location on Unit Circle: Period: General ...

**math**

is not b

**math**

Describe the vertical asymptote(s) and hole(s) for the graph of .y=(x-3)(x-1)/(x-1)(x-5) A. asymptote: x = 5 and hole: x = 1 B. asymptote: x = –5 and hole: x = –1 C. asymptote: x = –3 and hole: x = 5 D. asymptote: x = 5 and hole: x = –1

**math**

i know its not b

**math**

Designer Dolls, Inc. found that the number N of dolls sold varies directly with their advertising budget A and inversely with the price P of each doll. The company sold 5200 dolls when $26,000 was spent on advertising and the price of a doll was set at $30. Determine the ...

**english 4**

its not b then.

**english 4**

What tells you that the speaker is using stream of consciousness in the passage from Pedro Paramos? A. the speaker’s recollection about sleeping with her mother B. the uncertainty about the speaker’s actual situation C. the speaker’s concern that she didn’t...

**english 4**

Why does the speaker of Childe Harold's Pilgrimage admire the ocean? A. The ocean is beautiful and its sounds are soothing. B. Many people depend on fish from the ocean for food. C. The ocean is unchanged by human activities. D. The ocean provides a way to travel to ...

**english 4**

In what way does third section of “In Memory of W. B. Yeats” reflect the tension of the decade in which it was written? A. The poem describes writers with strong political beliefs. B. The section describes the era in which a famous poet died. C. The section describes...

**english 4**

Which phrase from “The Rime of the Ancient Mariner” contains alliteration? A. “The western wave was …” B. “Had I from old …” C. “And some in dreams …” D. “A spring of love gushed …”

**english 4**

it between b and d

**english 4**

Which word best summarizes Brooke's tone in “The Soldier”? A. guarded B. determined C. uncertain D. idealistic

**english 4**

a.

**english 4**

How is human joy different from the skylark's joy in “To a Skylark”? A. Human joy is not heard by others. B. A skylark has joy only when flying. C. A skylark's joy is based on unlimited freedom. D. Human joy is always touched by sorrow.

**6TH GRADE MATH**

Ms. Sue did I have the right concept down? I would have the same correct answer as you did.

**6TH GRADE MATH**

Write an equation you can use to find the length of the rectangle. area=72 m^2. 8m=length xm=width My equation is 8x=72 Am I correct?

**english 4**

I'm not sure if its c or d

**english 4**

Critical Reading Identify the letter of the choice that best completes the statement or answers the question.The excerpt from Midsummer, XXIII, primarily concerns A. race riots in England. B. the failure of Shakespeare’s drama in modern times. C. the passing of seasons in...

**english 4**

In “The Rocking-Horse Winner,” what does Paul keep hearing the house whisper? A. “Your mother does not love you!” B. “There must be more money!” C. “You must leave while you can!” D. “Your luck will change!”

**us history**

which of the following describes the main reason the Spanish conquistadors needed native american slaves? A: they needed help to find gold and send it back to Spain B: the native american slaves aided them with their tobacco crops C: the Spanish wanted to convert the native ...

**Spanish 3**

Hello! I need someone to check over my Spanish answers and see if I have them right. And if I don't, can someone please help me? Thanks a bunch! :) Directions: Re-write using Direct and Indirect Object Pronouns when needed. 1.) I read the book to Helena. My answer: Le&...

**Math**

Mike started a savings account by depositing $9. Each month, he deposits more money than the month before. At the end of 41 months, he has saved $9,389.00. How much more does he deposit each month?

**english 4**

What is shown on the tomb described by the speaker in “An Arundel Tomb

**math**

Which ratio compares 15m to 45cm?

**fuctions and statistics**

one foot is equivalent to approximately 0.3048 meters. if a building is 65-feet long, what is the length of the building in meters, to the nearest tenth?

**Physics**

A sign that weighs 670N is mounted at the end of a 2.00-m long rod of negligible weight. The supporting cable is connected at angle theta=30deg to the center of the rod. What is a) the tension T in the supporting cable, and b) the horizontal and vertical components of the ...

**Chem please help**

the answer should be B

**math**

At breakfast Gino drank 2/3 of the orange juice in a container. He drank 15 ounces of orange juice. Write a multiplication equation that you can use to find out the amount of orange juice that was in the container before Gino had breakfast?

**science**

if the pitcher moved his arm 1.1 m while accelerating the ball, how much work did the pitcher do on the bat

**English**

What is shown on the tomb described by the speaker in “An Arundel Tomb

**Crime Scene Sketching**

you will have the opportunity to practice sketching a room. Take measurements of a small room to which you have access. Plot out the simple floor plan. Review the methods of measurement and select one for this project. Pick an object in your room and use your chosen method to...

**Algebra**

For a board game there is 3 kinds of bills. There are 11 more $2 bills than $1 dollar bills. There are 18 fewer $3 dollar bills than $1 bills. The total for the bill is $100. How many $1 bills are used? 100 = n+2(n -11)+3(n+18) 100= n-2n-22+3n +54 100 = 6n +76 24=6n 4=n

**Physics**

Find the x- and y-coordinates of the center of gravity of a 4.00 ft by 8.00 ft uniform sheet of plywood with the upper right quadrant removed as shown in the figure below. The dimensions of the cutout are a = 4.50 ft and b = 1.70 ft. HINTS: Think of the board as being made of ...

**College physics**

3.195 N

**Chemistry**

1. The temperature of two substances with the same mass increases by 20 degrees Celsius. Which absorbs the most energy, the substance with the higher or lower specific heat? Explain 2. The human body is approximately 60% water. Explain how this high percentage of water helps ...

**Chemistry**

What is the maximum velocity (in m/s) acquired by an alpha particle when accelerated between two plates with a potential difference of 580.0 volts? Note: An alpha particle is essentially the nucleus of a helium atom - 2 protons and 2 neutrons.

**Math**

THANK YOU

**Math**

HERE ARE MY ANSWERS 35 I MULTIPLY 100 AND I WOULD GET 3,500 0.003 AND I GOT 0.3'/. 0.0077 AND I GOT 0.77'/.

**Math**

write each decimal as a percent: 1.07 35 0.003 0.0077 what do i do to convert the decimal into a percent??

**History**

Henry Ford

**History**

Efficiency was a central theme of the reform movement. Who of the following was not an example of someone striving to examine every aspect of life itself and determine, often through new scientific principles, how to do more work with less energy?

**Physics**

Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in the figure to pull it out. T = 11000 N A. What force would you have to exert perpendicular to the center of the rope to produce a force of 11000 N on the car if the angle is 2.00° ...

**Homework (Math)**

What can you multiply this expression by to get rid of the imaginary part of the denominator? (1-2i)/2i

**Math Question**

f(x)=-5√-4x+4+2. Find the inverse of this function.

**1333 math**

Probability Scores 0.2 0 0.2 2 0.05 4 0.45 7 0.1 9 Find the variance of the above random variable random variable.

**math**

A jar contains 8 pennies, 3 nickels and 4 dimes. A child selects 2 coins at random without replacement from the jar. Let X represent the amount in cents of the selected coins. Find the expected value of X.

**English**

I need to turn this into a really good thesis statement . In the myth " When Grizzlies walked Upright" explain how the bears lived in relation to each other before and after the introduction of the female into their clan, and explain how both the bears and female ...

**science/math**

the answer is 2.571. the 1 does not round up to turn the 7 to an 8. 2.57 is the correct answer. i have to do this same problem for chemistry.

**career/jobs**

Are there jobs that hire 14 year olds in New York?

**ENGLISH**

When Grizzlies Walked Up Right: Modoc Questions Help Me Please? 1.What event, accident, or situation is being introduced? 2.What are two examples used to catch the readers attention? 3.How is the event broken broken into smaller segments? 4.Three details used to emphasize the ...

**math**

a segment of late 94 cm has been rotated d degrees around a center zero what is the length of the rotated segment