# nina

Popular questions and responses by nina-
## Biology

6) A nurse is evaluating discharge instructions for a client following a right cataract extraction. Which of the following client statements indicates the teaching is effective? A. I will take a stool softener until my eye is healed. B. I will expect to

*asked on April 11, 2019* -
## Math

A 500-N tightrope walker stands at the center of the rope such that each half of the rope makes an angle of 10.0◦ with the horizontal. What is the tension in the rope?

*asked on October 19, 2017* -
## Biology

11) A home health nurse is assisting with the plan of care for an older adult client who had cataract surgery recently. Which of the following information should the nurse include in the plan of care? A. Remain on bed rest for at least 2 days B. Rest in

*asked on April 11, 2019* -
## Please Help! Quadratic Eqautions

The population of a town P(t)is modelled by the function P(t)=6t+110t+3000, where t is time in years. Note t=0 represents the years 2000.

*asked on November 17, 2012* -
## Math

Two combines are able to harvest 320 acres of crops in a certain amount of time. How many acres will (a)3, (b)4, (c)6 and (d)7 combines harvest if they work at the same rate for this amount of time?

*asked on December 24, 2016* -
## Please Help! Quadratic Eqautions

The population of a town P(t)is modelled by the function P(t)=6t^2+110t+3000, where t is time in years. Note t=0 represents the years 2000. When will the population reach 6000?

*asked on November 17, 2012* -
## Physics

An ice cube having a mass of 50 g and an initial temperature of -20⁰C is place in 400 g of water 30⁰C water. What is the final temperature of the mixture if the effects of the container can be neglected?

*asked on April 19, 2010* -
## Math

If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the average of x, y, and z in terms of m? A) m+6 B) m+7***** C) 2m+14 D) 3m+21

*asked on March 12, 2018* -
## statistics

The average height of 18-year-old American women is 64.2 inches. You wonder whether the mean height of this year’s female graduates from your local high school is different from the national average. You measure an SRS of 78 female graduates and find

*asked on April 11, 2013* -
## Medical

Ms. Eubanks missed the recital because of a sore throat. This condition is known as _______

*asked on January 11, 2016* -
## math

a ball is thrown upward at 64 feet per second from the top of an 80 feet high building. The height of the ball can be modeled by S(t) = -16t^2 + 64t + 80(feet), where t is the number of seconds after the ball is thrown. describe the graph model

*asked on October 7, 2012* -
## Physics

How many electrons must be removed from an object to leave it with a charge of 2.0 x 10 exp-10C? This is a small though not neglible static charge.

*asked on May 10, 2010* -
## chemistry

how can i Specify what ions are present in solution upon dissolving each of the following substances in water: ZnCl2, HNO3, (NH4)2SO4,Ca(OH)2

*asked on October 4, 2009* -
## Biology

1) A nurse is collecting data from a client who has open-angle glaucoma which of the following findings should the nurse expect? A. Loss of peripheral vision****** B. Headache C. Halos around lights D. Discomfort in the eyes 2) A nurse is collecting data

*asked on April 11, 2019* -
## Biology

16) A nurse is collecting data from a client who has parkinson's disease and his experiencing bradykinesia. Which of the following finding should the nurse expect? A. Increased blinking B. States euphoria C. Slurred speech D. Decreased respiratory rate 17)

*asked on April 11, 2019* -
## statistics

Individual M&M plain candies have weights that are normally distributed with a mean weight of 0.8565 g and a standard deviation of 0.0518 g. If you randomly select 465 M&M plain candies, what is the probability that their mean weight will be less than

*asked on April 24, 2016* -
## Math

A number has more tens than hundreds or ones. What might the number be?

*asked on March 7, 2016* -
## algebra 1

Solve the system by either substitution or elimination 3x-5y=21 2x+y=1 A (2,-3) B (2,3) C (-2,-1) D (-2,1)

*asked on January 11, 2016* -
## Statistics

Express the confidence interval (0.033,0.099) in the form of P-E

*asked on July 27, 2014* -
## Geometry Help!!!!!!!!!!

If the sides of a triangle have measurements 3x + 4 , 6x - 1, and 8x + 2, find all possible values of x. I also need help with this question please

*asked on June 23, 2011* -
## Algebra

A ball is thrown into the air with an initial upward velocity of 60 ft/s. Its height (h) in feet after t seconds is given by the function h = –16t² + 60t + 6. What will the height be at t = 3 seconds? A) 3 B) 4***** C) 5 D) 6

*asked on April 11, 2017* -
## Earth Science

The Rocky Mountains are more jagged than the Appalachian Mountains. This suggests that • erosion has worn down the Appalachian Mountains more than the Rocky Mountains. • the Rocky Mountains are older. • the Appalachian Mountains are more likely to

*asked on January 9, 2014* -
## Geomatic Sequence

In a geomatic sequence, the seventh term exceeds the fifth term by 1920. Find the sum of the first eleven terms if the common ratio of the sequence is 2.

*asked on October 1, 2012* -
## chemistry

What kind of reaction occurs when a molecule of glucose reacts with oxygen to give carbon dioxide and water? a.exothermic reaction b.endothermic reaction c.synthesis reaction d.irreversible reaction

*asked on June 11, 2011* -
## Chemistry

A student performs a crystallization on an impure sample of biphenyl. The sample weighs 0.5 g and contains about 5% impurity. Based on his knowledge of solubility the student decides to use benzene as the solvent. After crystallization, the crystals are

*asked on October 8, 2008* -
## Math

The length of a football pitch is 100m and the width of the pitch is 80 m calculate the length of a diagonal of the pitch give your answer to the nearest metre

*asked on January 1, 2014* -
## Chemistry

A student completes titration by adding 12.0 mL of NaOH(aq) of an unknown concentration to 16.0 mL of 0.15M HCl(aq). what is the molar concentration of the NaOH(aq)?

*asked on June 7, 2012* -
## physics(universal law of gravitation)

a satellite has a mass of 100 kg and is located at 2 x 10^6 m above the surface if the Earth. wHAT is the potential energy associated with the satellite at this location? What is the magnitude of the gravitational force on the satellite?

*asked on January 14, 2010* -
## math

A company has a policy of retiring company cars; this policy looks at number of miles driven, purpose of trips, style of car and other features. The distribution of the number of months in service for the fleet of cars is bell-shaped and has a mean of 63

*asked on April 27, 2018* -
## Physics

The spin-drier of a washing machine slows down uniformly from 880 rpm (revolutions per minute) to 260 rpm while making 50 revolutions. Find the angular acceleration through these 50 revolutions. Express your answer in rad/s2. The answer is -12.3359871531.

*asked on July 19, 2017* -
## Technology

1. Using a graphic organizer in the prewriting process can do all of the following except: A. organize the writers thoughts B. help narrow the writers topic C. research a writers story** D. help make the writing more detailed 2. Writing a story with proper

*asked on October 6, 2015* -
## social studies

Which of these is an example of price competition? A a new advertising campaign B a loyalty rewards program C a special holiday sale (?) D a customer satisfaction survey

*asked on August 19, 2015* -
## English

I have two questions about this poem that I don't understand. Base Details If I were fierce, and bald, and short of breath, I'd live with scarlet Majors at the Base, And speed glum heroes up the line to death. You'd see me with my puffy petulant face,

*asked on November 13, 2014* -
## Math

A plane flies due east for 120 km from airport a to airport b it then flies due north for 280 km to airport c finally it flies directly back to airport a calculate the direct distance from airport to airport a give your answer to the nearest kilometre

*asked on January 1, 2014* -
## math

a farmer has cows and chickens. he has a total of 20 heads and 64 legs. How much of each animal does he have?

*asked on October 25, 2012* -
## Math

Explain why 1/8 is greater than 1/10, but less than 1/3.

*asked on February 9, 2011* -
## Mathematicas

Sam and Susie are twins. Sam has as many brothers as he has sisters. Suzie has at least 1 sister, and twice as many brothers as sisters. How many kids are in the family altogether?

*asked on April 18, 2010* -
## Chemistry

A student who was isolating aspirin stopped the experiment after filtration step alumina. One week later, the methanol was evaporated and the experiment was completed. The melting point of the aspirin was found to be 110-115 degrees C. Explain why the

*asked on October 10, 2008* -
## Chemistry

Each of the solvents given should effectively separate of the following mixtures by TLC. Match the appropriate solvent with the mixture that you would expect to separate well with the solvent. Select your solvent from the following: hexane, methylene

*asked on October 9, 2008* -
## Chemistry

Benzyl alcohol (boiling point: 205 degrees C) was selected by a student to crystallize fluorenol (melting point: 153-154 degrees C) because the solubility characteristics of this solvent are appropriate. However, this solvent is not a good choice. Explain

*asked on October 9, 2008* -
## math

I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"

*asked on September 18, 2008* -
## Math

The polynomial P(x)=x^3−6x^2+6x−23 can be rewritten as P(x)=(x^2+6)(x−6)+13. Which expression is a factor of P(x)? a. x^2+6 b. x−6 c. 13 d. none of these please help

*asked on March 13, 2020* -
## Math

Show how to make one addend the next tens number. 24 + 18

*asked on December 15, 2019* -
## Literature

why is literature the criticism of life?

*asked on August 19, 2019* -
## Algebra 2

I'm working on Lesson 6: Absolute Value Equations and Inequalities Algebra 2 A Unit 2: Expressions, Equations, and Inequalities and feel confident in my first few answers, but beyond that am lost. May I have some help? **=the answer I believe to be true

*asked on September 23, 2017* -
## MATH

I NEED HELP WITH MY LEAP MATH MIDTEST QUESTIONS STAT!

*asked on January 12, 2017* -
## geometry

Identify the lateral area and surface area of a regular square pyramid with base edge length 11 cm and slant height 15 cm.

*asked on June 25, 2016* -
## Math

0.01+0.05 simplify the expression above. which of the following is correct?

*asked on February 10, 2016* -
## math/help please

Question: Kenny reads 5/8 page in 2/3 minutes. This is unit rates. Please help!

*asked on September 28, 2014* -
## chemistry

a) Calculate the percent ionization of 0.125M lactic acid (Ka=1.4x10^-4) b) Calculate the percent ionization of 0.125M lactic acid in a solution containing 0.00075 M sodium lactate.

*asked on July 31, 2014* -
## trigonometry

A ship is sighted directly east of a lighthouse. Another ship, which is 20m away from the first ship, is observed at a bearing of N25degreesE from the lighthouse. If the first ship is 4.1 km away from the lighthouse, what is the distance of the second ship

*asked on January 6, 2014* -
## PLEASE HELP!!!!

((cotx+cscx)/(sinx+tanx))=cotxcscx Please prove left side equal to right side, only doing doing work on the left.

*asked on December 16, 2013* -
## Math

John ate some pie for lunch. He left 2/3 of the pie. Jerry ate 1/2 of the remaining pie. How much pie did Jerry eat?

*asked on November 8, 2012* -
## Math 142

800 hundred chances are sold at $2 apiece for a raffle. There is a grand prize of $650 dollars, two second prizes of $250, and five third prizes of $50. First calculate the expected value of the lottery. Determine if the lottery is a fair game. If the game

*asked on October 19, 2012* -
## statistics

How is the standard error of the mean influenced by sample size and standard deviation?

*asked on October 6, 2012* -
## physics

a child is sliding on a sled at 1.5m/s to the right. You stop the sled by pushing on it for 0.50 s in a direction opposite to its motion. If the mass of the child and the sled is 35kg. what average force do need to apply to stop the sled. Use the concepts

*asked on November 18, 2010* -
## science

i need to solve this : 1. we should show the chemical structure of oligosaccharide which contains 2 galactoses and 1 saccharose. 2. compare the difference in physical features og dicarboxylic acids and glucose beta chain 3. determine the calorific value of

*asked on March 29, 2011* -
## math prime factorization

write the prime factorization of 15 using exponents.

*asked on September 28, 2009* -
## Physics

Common light bulbs have a mental filament made of tungsten and when a current passes through it, it radiates visible light, as well as heat. If initially the filament's resistance is 2.45 ohm (6%) at 20 degrees Celsius and the temperature coefficient of

*asked on February 10, 2009* -
## Chemistry

Consider the following errors that could be made when running TLC. Indicate what should be done to correct the error. a) a two-component mixture containing 1-octene and 1,4-dimethylbenzene gave only one spot with an Rf value of .95. The solvent uses was

*asked on October 9, 2008* -
## law

how can i advise Robert about the proposed meeting to change the constitution of Wellbuilt Pty Ltd with particular reference to his rights in relation to the his shares? Wellbuilt Pty Ltd is a large proprietary company running a medium sized commercial

*asked on April 4, 2007* -
## corporate law help

what would be the revelent issue Tom, a new director has found he has not been re-imbursed for expenses he incurred when he went on a familiarisation trip to various company premises. What did his employment contract say? What did his company's written

*asked on March 30, 2007* -
## chemistry

A tank holds a mixture of oxygen and nitrogen gases. If the partial pressure of oxygen is 3.3 atm and the mole fraction of N2 gas X(N2) = 0.78, what are the total pressure in the tank and the partial pressure of N2?

*asked on November 17, 2019* -
## physics

a man travels 7km 40° west of north, then 10km east. find the resultant displacement

*asked on October 18, 2019* -
## Physics

Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1200N. F=

*asked on February 22, 2018* -
## Trigonometry

A clown is juggling at a circus. The path of a ball is given by the parametric equations x=2 cos T + 2 and y = 3 sin T + 3. In what direction is the ball moving? Up and to the right counterclockwise down and to the right clockwise After graphing it and

*asked on May 29, 2017* -
## Trigonometry

over which of the following domains is f(x) = csc(0.1x + 1.2) defined at all points and invertible? x = [0,10] x = [10,20] x = [20,30] x = [30,40] Can someone please explain how to solve this to me and show me all the steps rather than simply giving me the

*asked on April 19, 2017* -
## Math

You rent x pairs of shoes for $2 each. You buy the same number of drinks for $1.50 each. You also pay $9 for a bowling lane. Write an expression in simplest form.

*asked on March 28, 2017* -
## Algebra

Please help! Give the square and the cube of each expression in simplified form. -2t^2k

*asked on March 28, 2017* -
## Physics

A thin light beam is shining onto a wall. You take a solid block of glass that is 3.0cm thick and place it between the wall and the beam. The refractive index of the glass is 1.5. The angle between the beam and the surface of the block is 60° What is the

*asked on March 8, 2017* -
## Maths

The area of rhombus is 148.8 square cm.if one of its diagonal is 19.2 cm,find the length of the other diagonals.

*asked on January 17, 2017* -
## Math

Ok I have some math questions I need help with i'm not asking for the answer i just need help

*asked on December 7, 2016* -
## Math College 115

a cat is born (age 0) weighing 3.8 ounces and at 2 years of age the cat weighs 40.8 ounces. Write answerin slope-intercept form, w=b+ma, in temrs of weight,w, and age,a.

*asked on September 6, 2016* -
## algebra 2

My data has a median of 4, a mode of 3 and a mean of 3.56. Would this mean my data set was normally distributed? I think my data set is not normally distributed but can someone just check my work for me?

*asked on August 6, 2016* -
## math

Determine the rate per cent per annum if Rs 6,250 amounts to Rs 6760 in six months ,interest being compounded quarterly

*asked on July 28, 2016* -
## Algebra

the perimeter of a triangle is 56 inches. the longest side measures 4 inches less than the sum of the other two sides. three times the shortest side is 4 inches more than the longest side. find the lengths of the three sides

*asked on April 21, 2016* -
## science

What does the surface temperature of the water affect?

*asked on April 7, 2016* -
## math

Jamie practiced the piano every four days. He had a piano lesson every nine days. When will Jamie practice and have a lesson on the same day?

*asked on April 6, 2016* -
## Physics

A 143.8-N bird feeder is supported by three cables as shown in the figure below. Find the tension in each cable. The rope on the right is 30 degrees and the rope on the left is 60 degrees. and the middle rope is connected to the bird feeder and is

*asked on October 30, 2015* -
## reading

What is the prefix suffix , and root of the word grumbled? My answers: No prefix Led-suffix Grum root am i correct? Plz answer for all my answers and ASAP

*asked on September 15, 2015* -
## social studies

A company in China manufactures basketballs. A company in the United States buys the basketballs and resells them to people there. What term best describes the U.S. company? A importer B exporter C producer D consumer (?)

*asked on August 19, 2015* -
## statistics

A cereal company claims that 2 in every 15 boxes win a prize. What is the probability that you do not win a prize three times in a row?

*asked on March 24, 2015* -
## Physics

The same amount of heat entering identical masses of different substances produces different temperature changes. Calculate the final temperature when 1.50 kcal of heat enters 1.25 kg of the following, originally at 22.5°C.

*asked on November 26, 2014* -
## English

I need some help with looking over my answers... thanks for the help... Base Details If I were fierce, and bald, and short of breath, I'd live with scarlet Majors at the Base, And speed glum heroes up the line to death. You'd see me with my puffy petulant

*asked on November 13, 2014* -
## Physics

(a) A small mail bag is released from a helicopter that is descending steadily at 2.13 m/s. After 4.38 s, what is the speed of the mail- bag? The acceleration of gravity is 9.8 m/s2 . (b) After the mailbag is dropped, the helicopter continues descending

*asked on October 26, 2014* -
## math

each rabbit costume needs one and one half yards of white fur fabric,a yard of blue striped fabric,and a quarter of a yard of pink felt for the ears.

*asked on October 16, 2014* -
## Math 221

the equation of a line parallel to the given line but passing through the given point. I can't figure out. y=-3x-6;(-1, 5)

*asked on April 17, 2014* -
## chemistry

a wet gas collected over water has a volume of 900 mL at50 degrees Celsius and a pressure of 84.6 kPa. The partial pressure of water at this temperature is 12.3 kPa. What is the volume of the dry gas at 120 kPa?

*asked on April 6, 2014* -
## trig

Two Airplanes leave an airport at the same time on different runways. One flies on a bearing of N66degreesW at 325 miles per hour. The other airplane flies on a bearing öf S26degreesW at 300 miles per hour. How far apart will the airplanes be after 2

*asked on January 6, 2014* -
## biology

How does mitosis in plant cells differ from that in animal cells? A. Animal cells lack a cell plate. B. Plant cells lack centrioles. C. Plant cells lack spindle fibers. D. Animal cells lack cytokinesis. I chose b but I got it wrong please help....

*asked on September 30, 2013* -
## Algebra 2

Jessica's bank contains 18 quarters and dimes, of which q are quarters. Find the total value of the coins in dollars.

*asked on September 2, 2013* -
## Acc Algebra 2

*asked on August 28, 2013* -
## Math

erica painted a picture of her dog the picture has an area of 3,600 cm2 and is a square. she has placed the picture in a frame that is 5 cm wide. what is the perimeter of the picture frame?

*asked on June 3, 2013* -
## Math

erica painted a picture of her dog the picture has an area of 3,600 cm2 and is a square. she has placed the picture in a frame that is 5 cm wide. what is the perimeter of the picture frame?

*asked on June 3, 2013* -
## Chemistry

How many moles of carbon dioxide would be produced if 25 g of copper carbonate were completely decomposed by heating?

*asked on January 30, 2013* -
## math

(h)t=-4.9t^2+98t+8 Find the max height?

*asked on January 2, 2013* -
## Physics

two equal charges exert an elecrtric force on each other of 0.0385N when positioned 0.15m apart determine the magnitude of the charge on each point.

*asked on November 26, 2012* -
## chemistry

a photon has 3.3 *10-19 joules of energy. what is the wavelength of this photon?

*asked on November 9, 2012* -
## Chemistry

Test corrections :) They're calculations/short answers. I'd just like something to compare answers to or help me get the full answer (all partial credits). Thanks! #9. When water is electrolyzed it produces hydrogen and oxygen. If 10.0% of 150.0g of water

*asked on May 30, 2012* -
## Chemistry

It's a molar heat reaction lab. 0.07g Mg Mg+2HCl->MgCl2+H2 What is the actual value for the heat of reaction based on the enthalpy's of formation? HfHCl= -118.53 kJ/mole HfMgCl2= -774 kJ/mole

*asked on May 15, 2012*