# Posts by sandra

Total # Posts: 1,146

**algebra**

A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 mL of 60% sugar solution for an experiment ?

**electrical**

How can one put a polarized plug into a non-polarized socket?

**math**

convert to years, expressed in decimal form to the nearest hundredth. 6 months 6months = ___ year

**math**

what is the equivalent markup based on cost of a water fountain that is marked up 69% based on the selling price?

**Mathematics**

Thank you

**psychology**

the legal requirement that professionals notify appropriate authorities about cases in which children and certain other groups of vulnerable individuals are being abused is referred to as a) parens patriae. b)informed consent. c)duty to warm. d)mandated reporting.

**Physics**

In this section assume the sound speed in air is 343 m/s. A goose flying toward you at 12.6m/s emits a squawk, which you hear at 258Hz . A)Find the wavelength of the sound you hear B)Find the wavelength of the sound you hear if the goose emits the same squawk while flying away...

**Physics**

A 4.06m long organ pipe is open on both ends. A)Find its fundamental frequency. B)Find its first three overtone frequencies

**Physics**

Ultrasound with f = 4.4MHz is used in a medical imager A)Find the wavelength in air, with sound speed 343 m/s. B)Find the wavelength in muscle tissue, with v = 1580 m/s

**Statistics**

125/500 women soda drinkers indicate they drink diet soda. At the .01 level, does this evidence indicate that more than 20% of the women soda drinkers drink diet soda? Determine and explain the P-value please. I have the numbers...just cannot explain. Please help.

**physics**

Find the distance by which a 42cm diameter, 9.4m tall concrete column is compressed when it supports a 12900kg load

**physics**

How big would a spherical helium balloon have to be to lift a 70kg person? The mass of the balloon's skin is 4.0kg

**physics**

Water flows at 0.860m/s from a hot water heater, through a 450-kPa pressure regulator. The pressure in the pipe supplying an upstairs bathtub 3.70 m above the heater is 414-kPa. What's the flow speed in this pipe?

**statistics**

Please help- A random sample of n=500 households where 150 have combined cable,phone, and internet service. Firrst, calculate p-hat, the sample proportion of households having such service. Then use a confidence level for pi, the proportion of all households in this area that ...

**statistics**

standard deviation 1.2. Random selection of 70 found a mean of 5.2. I have to find a 87% confidence level given this info?

**english**

What does this quote mean/significance?-Candide by Voltaire-"Men... must have corrupted nature a little, for they were not born wolves, and they have become wolves. God did not give them twenty-four-pounder cannons or bayonets, and they have made bayonets and cannons to ...

**math**

determine ratio for 4 feet to 32 inches & 10 days to 40 hours. for the 1st I got 48/32=3/2 but i'm not to sure about the other one, it would be less than 2 days?

**penn foster**

No what's the answer

**BUSINESS 101**

B D

**math**

if the coefficient of x,x*x,x*x*x in the binomial expansion (1/2+x) whole raise to 2n are in AP. Show that 2nsquare- 9n +7 is equal to zero?

**statistics**

Use the normal dist to approx the desired prob. Find the prob of getting at most 30 fives in 200 tosses of a fair 6 sided die

**Creative Expression and Play**

Appropraite materials and equipment for outdoor play should contain:

**statistics**

Can you please tell me how to solve for the following? Pedro took an exam in a class in which the mean was 64 with a standard deviation of 6. If his z score was +3, what was his exam score? A students commute to school is normally distributed with a mean of 31 min and a ...

**stats**

I am having a bit of trouble with the top half of the questions. I have an answer below for questions 5-10, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the right of 1.93 under Student's t-curve ...

**stats**

I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American males are married. You ...

**statistics**

A physician routinely makes physical examinations of children. She is concerned that a three-year-old girl has a height of only 87.8 cm. Heights of three-year-old girls have a mean of 97.5 cm and a standard deviation of 6.9 cm (based on data from the National Health and ...

**foreign language**

How do you use the appropriate forms of the adjectives simpatico, dificil, aleman, and guapo?

**bmath**

71,214.36

**essex county**

and it is a rope not robe

**essex county**

just don't know how to start

**Math**

Maximize P=3x+2y subject to 6x+3y<=24 3x+6y=<30 X,Y>=10

**Math**

A company manufactirung snowboards has fixed costs of $200 per day and total cost of $3800 per day at a daily output of 20 boards. (A( Assuming that the total cost per day, C(x), is linearly related to the taotal out per dau,x, write an equation for the xost function (B) The ...

**Introduction to Algebra MAT 221**

Factor each polynomial completely. Show all work. Show each step. x^4 - x^3.

**Physics**

A 50 ohm resistor is connected in series with a 0.2 H inductor, a 40 microFarad capacitor, and an AC Generator yielding 120 v (RMS) at 60 Hz. Find A) the inductive reactance b) the capacitive reactance and c) the total reactance, the impedance Z, and the current in Circuit, I.

**Chemistry Question**

Calculate the ∆G˚ for the oxidation of nickel in the following balanced reaction. 2[RhCl6]3-(aq)+ 3Ni a 2Rh(s) + 3NiCl2(aq) + 6Cl-(aq) E˚ for RhCl6 is 0.5V E˚ for Ni(s) is -0.25V

**College Chemistry 104**

Oh dear, I am so stupid! Thank you. I can't believe that I didn't even realize that.

**math**

not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year

**math**

not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year

**Algebra**

Predict value of x in table In 0,2,8,10,18 Out 5,11,29,x,59

**Math**

Paula invested into two accounts; one pays 5% simple interest and the other 6% simple interest. She invested $3000 more in the account paying 6% than in the other account 5%. At the the end of the first year, Paula total return was 730. How much did she invest in each account?

**douglass**

which is a typical behavior of a successful interviewee?

**LAN**

1. System A consists of a single ring with 100 stations, one per repeater. System B consists of four 25 stations rings linked by a bridge. If the probability of a link failure is , a repeater failure is , and a bridge failure is , derive an expression for parts (a) to (d). a) ...

**Children's Literature**

To establish the idea that books are written by real people, make a point to introduce the:

**Algebra**

Thank you

**Language Arts**

It's #1 i just took the quiz.

**Guidance and Discipline**

Which one of the following ideas will NOT help children to feel personal ownership in their classroom?

**Guidance and Discipline**

Which one of the following ideas will NOT help children to feel personal ownership in their classroom?

**Guidance and Discipline**

Which one of the following ideas will NOT help children to feel personal owernership in their classroom?

**Guidance and Discipline**

In Ms.Edwards' two-year-old room,Brenden is working hard to build a block tower. The tower falls each time Brenden tries to stack the third block onto the second block. After three tries, Brenden throws the blocks wildly and begins to scream and cry. Which one of the ...

**Guidance and Discipline**

Which one of the following statements about lying is true.

**calculus**

present value of 450$ in 6 years with a 9.5% discount compounded semi annually

**Guidance and Discipline**

Jennifer runs up to Miss Edwards while she is mixing paint and pulls on her arm exitedle.As she does, the paint spills all over the floor.Miss Edwards should

**Guidance and Discilpine**

Adults should not assume that children: a.know how to clean up without being taught how to do it.b.will make a mess each time they play with toys.c.can use teamwork to clean up a messy center.d.will argue over who has to clean up the classroom.

**help**

Determine whether parallelogram JKLM with vertices J(-1, -1), K(4, 4), L(9, -1) and M(4, -6) is a rhombus, square, rectangle or all three.

**Geometry**

ABCD is a parallelogram. Segment AC = 4x + 10. Find the value of x and y.

**Guidance and Discipline**

Suppose a child has knocked down another`s block tower. To encourage ,a teacher or caregiver may ask the question,"Were you being careful of Sue`s tower when you drove your race car so fast through the block area?"

**Math**

Thank you and I'm sorry for accidentally posting a few times. I'm truly sorry for asking the same question repeatedly because it said it wasn't submitting because there was no signal.

**Math**

Estimate a 15% tip for each amount. $9.89 $27.59

**Math**

The following drill bits came in a typical set. Covert each bit size to millimeters (mm),rounding to nearest tenth of a millimeter. 1/16 in or 5/64in

**science**

I believe it is 26 degrees Celsius

**Curriculum Development**

Alex was working on a Blues Clue puzzle.This was the favorite puzzle of all of the children in the room.After observing him for a while, his teacher, Mrs.Obrecht, believed that Alex might be experiencing an eye-hand coordination problem.She may think this because:

**Computer**

The company you work for is having financial problems and has cut your software budget for the coming year. What is a legal viable way to save money on future software purchases? A. Use the site license of another company in the same industry. B. Consider open source versions ...

**Computer**

Your brother is going to serve in the military overseas for four years and asks you about storing his desktop computer in a public storage facility while he is away. The storage units are not temperature controlled. What could be the negative impact of doing this? A. The ...

**math**

divide 33 photos into two groups so the 7atio is 4 to 5

**science**

What shadow would a 137cm tall child cast at 9am 10am 11am 12noon 1pm 2pm 3pm and 4pm if they were facing north in january?

**Business Communication**

Problem letters such as bad-news letters get off to a better start by:

**Business Communication**

The built~in purpose of each letter should be to:

**Business Communication**

In written communications your tone is transmitted by your.

**Business Communication**

The refusal in negative communications should

**Business Communication**

Which of the following is a correct word a.Irrepairable b.Irregardless c.Relevant d.Anywheres

**business communication**

A telephone conversation may not be as acceptablea method for conveying information as a written document because a telephone may.

**Business Communication**

Which of the following sentences is written in the active voice

**ap calculus**

f(x)=x^3-2x^2+x and f'(x)=3x^2-4x+1 Find the value(s) of x where f(x) has a horizontal tangent (slope=0)

**Physics**

Thanks!

**Physics**

A 5.4 kg soccer ball moving to the right at 5.6 m/s collides with a 7.6 kg basketball moving to the left at 3.8 m/s. The soccer ball bounces left at 6.5 m/s after the collision. What is the speed of the basketball after the collision?

**finanical**

2. Open-end Fund A has 165 shares of ATT valued at $25 each and 50 shares of Toro valued at $45 each. Close-end Fund B as 75 shares at ATT and 100 shares of Toro. Both funds have 1,000 shares outstanding. (G 17-4) a. What is the NAV of each fund using these prices? b. Assume ...

**Finanical**

2. Open-end Fund A has 165 shares of ATT valued at 425 each and 50 shares of Toro valued at $45 each. Close-end Fund B as 75 shares at ATT and 100 shares of Toro. Both funds have 1,000 shares outstanding. (G 17-4) a. What is the NAV of each fund using these prices? b. Assume ...

**Finanical**

1. An investor purchases a mutual fund for $50. The fund pays dividends of $1.50, distributes a capital gain of $2, and charges a fee of $2 when the fund is sold one year later for $52.50. What is the net rate of return from this investment?

**case management**

15. If we do not follow up with clients, what is the risk that may happen? A. the client will get lost in the system or drop out B. the client may go to another provider or organization C. services will cluster around the physical aspects D. the client will may become ...

**case management**

14. Empowerment in reference to advocacy means A. Training the clients to act on their own behalf B. Providing positive praise to the client C. working in a collective action with others D. taking on a micro perspective

**case management**

13. McGowan (1974) found that outcomes of advocacy were affected by A. education of the advocate B. Receptivity of the target C. setting and support D. method of implementation

**case management**

12. What is an example of a high conflict intensity? A. coach client B. appeal to external ombudsman C. use target’s grievance procedures D. mobilize organized consumers groups

**case management**

11. Our textbook describes a conflict of interest in advocacy. Who is this between? A. the client and case manager B. the client and their support system C. the case manager and their employers D. the advocate and the case manager

**Music**

THANKS!

**Music**

i have a test tommorrow and i need help! What is that one note called that has 4 beats?

**financial**

1. A bank is considering two securities: a 30 year Treasury bond yielding 7 percent and a 30-year municipal bond yielding 5 percent. If the bank’s tax rate is 30 percent, which bond offers the higher tax equivalent yield?

**financial**

2. A bank is considering an investment in a municipal security that offer a yield of 6 percent. What is the security’s tax equivalent yield if the bank’s tax rate is 35 percent

**Math-5th grade**

a map distance of 2 inches represents 12 miles of actual distance. Suppose the distance between two cities on the map is 6 inches. What is the actual distance between the two cities. Can you please tell me what is the RULE? Thank you!!

**Chemistry física**

Não sei a resposta Gostaria de saber resposta dia 22 de

**math**

If paint is sold for $ 15 a can and $20 a can and they sell 320 dollars worth of paint, how many cans of paint do they sell? I know it takes 7 cans of paint at 20 equaling 140 and 12 cans at 15 equaling 180 but I', stumped at how to write the equation

**chemistry**

what is the molarity of a h2so4 solution if 18.5ml of naoh are needed to neutralize 25.0 mL of the sample?

**Math**

60

**physics**

it would be equal.

**social studies**

list five conditions that you would place on a parolee as a crime prevention tool.

**finance**

Having previously identified the location of its Greenfield investment, Acme, a multi-billion public MNE that is incorporated in the U.S., must next obtain external financing for its proposed overseas production facility. It has been estimated that the acquisition will cost $...

**chemistry**

245Cal x 4182J=1.03x10(6)J (14.6x10(3)kJ x 1000J)/1.03x10(6)J=14.2 Rounded to 3 sig figs

**algebra 1**

George is driving at an average speed of 62 miles per hour. Write an expression that would give his distance traveled for h hours. Make a table that records his distance for 3, 5.5, 7, and 8.5 hours.

**statistics**

4. Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and standard deviation of 4. Do not use web-calculator to answer the following questions. Instead, you need to use the Z distribution table in ...

**statistics**

3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same individual’s English ...

**statistics**

2. The results of a recent survey indicate that the average new car costs $23,000, with a standard deviation of $3,500. The price of cars is normally distributed. a. What is a Z score for a car with a price of $ 33,000? b. What is a Z score for a car with a price of $30,000? c...