# Posts by karen

Total # Posts: 1,077

**physics**

A centrifuge is revolving at the rate 10,000rpm. The radius of revolution for a 0.100-g particle being separated is 8.00 cm. a) Identify the given quantities with their symbols and units. b) What is the angular speed in radians per second? c) What is the linear speed in meters...

**english**

a common fary tale motif found in the white snake is: a)references to the bible b)items or events occurring in threes c)references to real people or events d)the dialect of the charactwers

**algebra 1**

n-12 =11 n-12+12=11+12 n=23

**Sociology**

What does social cultural context mean? and what does it mean to look at something structually?

**geometry**

show that points A= (10,12,13), B=(13,14,14), and C=(18,18,16) are not collinear

**statistics**

A study of graduates average grades and degrees showed the following results: B.S. Degrees, 15 graduates averaged Grade A, 8 graduates averaged Grade B, and 5 graduates averaged grade C. Graduates who had a B.A. Degree, 8 averaged grade A, 12 averaged grade B, and 7 averaged ...

**physics**

A satellite orbits Earth once per day. From the reference frame of the Moon, which orbits Earth once about every 27 days, what is its motion?

**math**

3 pounds

**math**

express 55 minutes as a frcation of 1 1/3 hours

**algebra**

11 divided by 12 +b= 5/6

**algebra**

if a)=0.65 and b)=1.28 and c)=-5/2,evaluate -a-(-b)+c

**english**

in the book the diary of Anne Frank the diary provides anne with a means of working through her internal conflicts. provide two examples of personal conflicts Anne is struggling with

**English**

the adjective would be yellow,a word to define a noun

**physics help please**

An airplane that can fly at 300 km/hr is flying at 210 when it is hit by a wind of 125 km/hr at 110. What is the new velocity of the plan?

**Physics help ASAP please**

A boat needs to travel straight across a river. The current is 10 km/hr. The boat can travel at 16 km/hr. What is the velocity of the boat relative to the bank?

**Physics help ASAP please**

An airplane is flying south at 500 km/hr and is being blown by a crosswind of 75 km/hr east. What is the resultant velocity of the airplane?

**literature**

how does the role of the supernatural differ in the stories of Echo and Narcissus and Deadalus and Icarus?

**Physics**

You carry a 20 n box 5 m horizontally across a room. The work you do is? Is 4 J correct?

**Statistics**

The lifetime of television produced by the Hishobi Company are normally distributed with a mean of 75 months and a standard deviation of 8 months. If the manufacture wants to have to replace only 1% of its televisions, what should its warranty be?

**trig**

find the 5 trig ratios when sin theta = -5/13 and lies in quadrant 3

**MATH**

what are the rules to multiplication with negative numbers and positive numbers?

**chemistry**

how many molecules of O2 may be produced from 50g of KClO3? the formula is 2KClO3->2KCl+3O3

**chemistry**

how many grams of O2 may be produced from 50g of KClO3?

**Whatzit puzzle**

That is the way the puzzle is written.

**Whatzit puzzle**

more it it thani

**Chemistry**

Nuclei with the same number of neutrons but different mass numbers are called isotones. Write the symbols of four isotones of 236Th

**College Math**

Ed Moura has $29,000 invested in stocks paying 5%. How much additional money should he invest in certificates of deposit paying 2% so that the average return on the two investments is 3%?

**STATISTICS**

WHAT PERCENTAGE OF AFRICAN AMERICAN ARE FEMALE

**math**

a pet shop owner had an equal number of hamster and puppies for sale. the hamster were put equally int o 4 cages and the puppies were put equally into 12 cages. at the end of the day, he had sold 3 cages of hamsters and 6 cages of puppies. if the total number of animals sold ...

**math**

an aquarium had 50 goldfish and angel fish. After 2/5 of the goldfish and 1/2 the angel were sold, there were 27 goldfish and angel fish left. What was the ratio of the goldfish to the angel fish after the sale?

**math**

Tommy, Shawn, and ricky had a total of 192 picture cards. In a game, Tommy lost some picture cards to Shawn and Shawn's picture cards doubled. Shawn lost some picture cards to ricky and ricky's picture cards doubled. Then they each had the same number of picture cards ...

**Literacy 2**

You need to recheck these bc at least 4 are incorrect. I just took this exam.

**Math: Inequalities**

A doughnut shop at a shopping mall sells a dozen doughnuts for $2.95. Beyond the fixed costs of $150 per day, it costs $1.45 for enough materials and labor to produce each dozen doughnuts. If the daily profit varies between $50 and $200, between what levels (in dozens) do the ...

**ECE**

At which grade level is it most appropriate for children to group by more than one attribute? A. Primary B. Kindergarten C.Four years old D.Preschool

**trigonometry**

A ladder 6.4 meters long leans agant the wall of an apartment house forming an angle of 53%20% with the ground. How high up the wall does it reach?

**Math**

Anyone help me?? :) How to solve: 5x2 = -(19/2x-1) and 2x2 + 45/2x - 18 = 0 With full solutions? Thank you :)

**social studies**

How do the similar cultural and economic environment of the united states and canada help to keep people and goods passing easily from one country to the other?

**world history**

following world war 2 what factors led to Japan's economic success? a)the adoption of eastern economic philosophy that emphasized supply and demand economy. b)the concentration on the production of high-quality agricultural products. c)efficient, modern factories,adapted ...

**world history**

which of the following was an effect of militarism in europe in the late 1800s? nations made political and military alliances. b)strong governments developed. c)nations made economic alliances. d)political tension between nations was reduced.

**solving rational equations**

4-a-5/a+5=a^2-15/a+5

**Math**

Thanks that is what I thought but there was no time given

**Math**

I bought a stock at $16.50 and sold it at $19. What was the rate of change?

**poetry**

What is performative aspect of a poem

**composition and communication1**

The WritePointSM report begins with the following statement: “Welcome to WritePointSM, the automated review system that recognizes errors most commonly made by university students in academic essays.”

**Physics**

A 0.200-m uniform bar has a mass of 0.750 kg and is released from rest in the vertical position, as the drawing indicates. The spring is initially unstrained and has a spring constant of k = 25.0 N/m. Find the tangential speed with which end A strikes the horizontal surface.

**MATH**

Interest = principal times rate times time. Simple interest multiple all together 31.5.

**Records Management**

I am having a hard time understanding how to arrange these numbers and I have to turn the assignment in tomorrow. Any help would be appreciated. 1. arrange the numbers in terminal digit order. 2. arrange the numbers in middle digit order. 3. arrange the numbers in consecutive ...

**businesscommunication**

I took a speech class last quarter and the focus was on informative speeches and preparing outlines. 1. Introduction - the topic and main point of the message. Can be done with a thesis statement. An overview of what will be talked about. (five to eight sentences for the ...

**statistics**

20

**9th grade integrated algebra**

13.2

**statistics**

describe how you would design an experiment to help the protagonist make an informed decision. Your description should include (but not be limited to) how subjects are chosen for the experiment, how treatments will be administered, what variable(s) you will be measuring, and ...

**statistics**

Your friend David works for an online magazine and calls you late one night. He says “Dude(tte), can you help me out? I’m putting together an article and the submission deadline is in an hour. I want to quote an opinion poll result my publisher gave me, but they didn...

**statistics**

2. Your friend Janefs landscaping company charges two hours of labor time for the planting of a medium-sized tree. To make sure she is not undercharging or overcharging for this service, she asks for your help. To start, you take an SRS of 10 planting times from last ...

**statistics**

After years of data collection by college students, it has been determined that the distribution of course grades in Ms. Green’s Statistic II class follows a normal distribution with a mean of 62 and a standard deviation of 14. (a) A student will pass Ms. Green’s ...

**Calculus**

Evaluate the integral. HINT [See Example 3.] (Remember to use ln |u| where appropriate.) (4/x - 1/4x^5 + 1/2x^7)dx

**math**

If you are in Florida, 7th grade is the first grade where you are REQUIRED to have a multifunction calculator, according to the state curriculum. It is important to note that there are parts of the FCAT where you cannot use a calculator so basic skills need to continue to be ...

**business**

why can businesses started by young people face a lower risk of failure than adult businesses?

**consumer mathematics**

A $500 sofa is reduced 15%. What percentage would the sale price have to increase to be at the original price?

**math**

Look at this trinomial 32a^4 + 18a^3 - 12a Write the polynomial as the product of the GCF of all its terms and a polynomial PLEase explain thanks

**Chemistry**

Besides the fact that it would reduce pollution, why would a hydrogen fuel based car be a better choice than a regular gasoline fosil fuel vehicle?

**science**

How many pounds of pressure does a 25 pound baby weigh in a head on collision when the car is traveling at 25 miles per hour. (and hits a stationary object)

**MATH**

IF A DOOR MEASURES 42" WIDE BY 84" TALL CAN A TABLE MEASURING 96" IN DIAMETER FIT THROUGH?

**freedom similes and metaphors?**

Im sorry to break it up to u, but, I donno😔😒😩😞

**Discrete Mathematics**

Step 1 Set a=1, b=1, c=2,and k=0 Step 2 while k < n (a) Replace c with a+b (b) Replace a with b (c) Replace k with k+1 endwhile Step 3 Print b

**C++**

For each of the following problems, write a program or a program segment that performs the specified action.Each problem refers to class Polygon (Fig. L 11.15). This class contains a dynamically allocated array of x-coordinates and a dynamically allocated array of y-...

**social studies**

I need a poem about the battle of lexington and concord.

**algebra**

how to: graph , substitution, and elimination y=2x+5 y=2x-8

**chemistry**

What quantity of solid compound? 300ml of 4% (w/v) ammonium chloride.

**human resources**

My book sure doesn't, that's why I'm searching the internet looking for help.

**USSO**

Please explain why the British Colonists in North America sought separation from the British Empire in1776. Explain not only the events that led up to the Revolution but the ideas that the colonists used to interpret these events and how they ultimately justified the War of ...

**math**

The president of the country PTA organization makes copies of membership lists for all of the elementary schools. Sometimes she may need only few copies but at other times she needs thousands of copies. TIP copy Service charges 3 ½ cents per copy plus a 42.00 set up ...

**math**

[][][][][] [] [] [] it looks like this

**math**

i dnt get ti ...this is so cionfusing

**math z score**

find the z score corrsponding to a score of X = 100 the mean = 80 and the standard devation = 5

**statistics**

find the z score corresponding to a score of X = 100 for a mean = 80 and standard devation of 10

**math**

In a department store, there were a certain number of red T-shirts, blue T-shirts, and yellow T-shirts. 3/7 of the T-shirts were red, 1/3 of them were blue and the rest were yellow. If there were 20 more red T-shirts than blue T-shirts, how many yellow T-shirts were there?

**geology**

Given a scale of 1:24,000: A. What is the ground distance in feet represented by three inches on the map? 72000in 6000ft B. What is the ground distance in meters represented by 5 cm on the map? 120meters C. How about the ground distance in kilometers represented by 5 cm on the...

**Statistics**

In a single toss of a fair die, what is the probability of obtaining an even number divisible by three?

**binominals**

multiply using FOIL - First Outer Inner Last. y^2 + 3y + 7y + 21. Now combine like terms to get y^2 + 10y + 21

**Math**

A 3 foot long pole leans against a wall. The bottom is 5 feet from the wall. How much farther should the bottom be pulled away from the wall so that the top moves the same amount down the wall?

**stats**

a die is rolled 10 times. find the chance of.... a)not getting 10 sixes b)all the rolls showing 5 spots or less I'm not sure how to do either, but for b, I think is it (5/6)^10 because each time there is a chance that the number will be 5 or less? Please help. thank you!

**science**

Does it take more effort to get up and walk a rolling chair accross the room than it takes to sit and scoot it accross the room Karen

**Physics**

Galileo threw a large rock upward from a tower balcony at an angle of 25.0o above the horizontal with an initial speed of 15 m/s. If the rock hits the ground 3.0 s later, how high above ground was the rock when it left Galileo’s hand?

**Science**

How was their small size helpful to the mammals of the Mesozoic?

**math300**

Run the simulation using n = 30 and N = 10 for a uniform, a bell-shaped, and a skewed distribution. Identify the mean of the sampling distribution of sample means for each distribution. Evaluate if the results are what you expected for each distribution. Run the simulation ...

**english**

Which words/phrase in this sentence is misplaced? Having been discovered, Rover looked up at his owner with puppy-dog eyes. a. with puppy-dog eyes b. been discovered c. his owner d. rover looked up I am torn between (a.) and (c.). Since the answer (c.) says "his owner&...

**english**

talking about the right to vote

**english**

i need help on describing women's suffrage

**algebra**

perform the indicated operation 75/80=15/16

**math**

7/12m + 2 is less but equal to 16 SOLVE!!!

**Calculus**

y=0^2+1/0^2+9 y = 1/9 y intecept

**English**

I was to write 2 paragraphs on how interest rates affect our purchasing decisions and underline the topic sentence of each one. I would like to know if my prargraphs are okay and if I chose the TS correctly. Since I don't know how to underline here the topic sentences I ...

**Math**

Is the numbers 5,12,26 a arithmetric or geometric or neither

**business**

#28 The following is a partial ANOVA table. Sum of Mean Source Squares df Square F Treatment 2 Error 20 Total 500 11

**physics**

where do the 2.4 in part A and the 2.6 in part B come from

**arithmetic**

what does 2.75+.003+.158=

**physics**

A 2kg ball attached to the ceilling with a string is released and swings back and forth. Assume there is no air resistance. At the bottom of the path the lowest point the velocity is 4m/s. What is the velocity when it returns to the lowest point

**English**

Thank you so much! I have a really hard time with these!!!

**English**

Adjectives/Adverbs I need to underline the adjectives and bold the adverbs. Just need help if I did it correctly. Since this doesnst let me do underline and bold I will make the adjectives in () and the adverbs in ** Thanks I have had both *good* and *bad* experiences with ...

**math**

Please help! Car traveling at 35 MPH traveling 900'...how long to stop? Car traveling at 90 MPH traveling 900'...what is the difference on impact????