# 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

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?

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

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

In written communications your tone is transmitted by your.

The refusal in negative communications should

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

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

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

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...

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