# karen

Popular questions and responses by karen-
## 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.)

*asked on January 28, 2011* -
## math

please help! 1.) A random digit from 1 to 9 (inclusive) is chosen, with all digits being equally likely. The probability that when it's squared it will end with the digit 1. 2.) A random number between 1 and 20 (inclusive) is chosen. The probability that

*asked on August 11, 2012* -
## english

Which group of words in the 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

*asked on October 31, 2010* -
## chemistry

Write the balanced equation for the neutralization reaction between H3PO4 and NaOH in aqueous solution. Phases are optional.

*asked on May 14, 2014* -
## Chemistry

What are the three essential parts to make a battery? Cell reducing agent acid fuse porous barrier or salt bridge voltage regulator oxidizing agent

*asked on May 14, 2014* -
## probability

please help! 1.) A random digit from 1 to 9 (inclusive) is chosen, with all digits being equally likely. The probability that when it's squared it will end with the digit 1. 2.) A random number between 1 and 20 (inclusive) is chosen. The probability that

*asked on August 11, 2012* -
## chemistry

for the reaction S2F6 (g) 2SF2(g), the equilibrium concentrations are as follows: [S26]=0.000430M, [SF2]=2.08 M, [F2]=1.32M. the equilibrium constant is

*asked on November 13, 2011* -
## Whatzit puzzle

more it it thani

*asked on September 9, 2011* -
## statistics

Given the following scatter diagram , the sample correlation coefficient r: Has a positive linear correlation Has a negative linear correlation. Has little or no correlation. Looks close to + 1.00

*asked on August 19, 2010* -
## Algebra 2

E6------E= -0.378eV E5------E= -0.544eV E4------E= -0.850eV E3------E= -1.51eV E2------E= -3.40eV Use the figure shown above to determine how much energy a hydrogen atom with its electron in the E2 energy level must absorb for the electron to be removed

*asked on April 24, 2017* -
## Statistics

A recent survey found that 70% of all adults over 50 wear glasses for driving. You randomly select 30 adults over 50, and ask if he or she wears glasses. Decide whether you can use the normal distribution to approximate the binomial distribution. If so,

*asked on February 16, 2013* -
## statistics

A jar contains 2 pennies, 6 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. a. Find the probability X = 11. b. Find the expected value of X

*asked on April 13, 2019* -
## Biochemistry

What is the condensed structural formula of cyclopropane?

*asked on August 21, 2017* -
## Mathematics

The product of two natural numbers must be a natural number

*asked on August 7, 2020* -
## Calculus-Math

The ordering and transportation cost C for components used in a manufacturing process is approximated by the function below, where C is measured in thousands of dollars and x is the order size in hundreds. C(x) = 12((1/x)+((x)/(x+3))) (a) Verify that C(2)

*asked on September 15, 2014* -
## algebra

please help! The following equation can be used to predict the average height of boys anywhere between birth and 15 years old: y = 2.79x +25.64 where x is the age (in years) and y is the height (in inches). a. What does the slope represent in this problem?

*asked on August 10, 2012* -
## Geometry

Stephanie casts a shadow of 1.2m and she is 1.8m tall. A wind turbine casts a shadow of 10m at the same time that Stephanie measured her shadow. Draw a diagram of this situation and then calculate how tall the wind turbine is.

*asked on January 11, 2014* -
## Math

A quadrilateral contains two equal sides measuring 12 cm each with an included right angle. If the measure of the third side is 8 cm and the angle opposite the right angle is 120 degrees, find the fourth side and the area of the quadrilateral.

*asked on February 2, 2015* -
## trig

use a half-angle identity to find the exact value of tan 105 degrees.

*asked on July 22, 2013* -
## Chemistry

If 4.39 g AlCl3 is dissolved in enough water to make exactly 100.0ml of a solution, what is the molar concentration of the chloride ion?

*asked on March 31, 2018* -
## math

what is the effective interest rate of an 8% 13-week treasury bill? assume it is a $10,00 treasury bill, and round to the nearest hundredth percent

*asked on June 5, 2017* -
## economics

When an economist says that a currency has become stronger, he or she means that a) it will buy less of foreign goods. b)it can be exchanged for more of a foreign currency. c)services, unlike goods, can be exported freely. d)there are very few things that

*asked on January 9, 2012* -
## Spanish 2

Dear Profesora, Can you check my answers? 11 of 21 Grammar Questions: Choose the best answer to express the given statement or question. Creo que el poema ______________ por Pablo Neruda. escribió fue escrito** fuera escrito escriba unable to answer

*asked on August 13, 2015* -
## Accounting

A credit to a liability account was posted to an owner's equity account. This would cause __________. A. assets to be overstated B. liabilities to be understated C. owner's equity to be understated D. net income to be overstated i think its D A credit to

*asked on February 21, 2015* -
## chemistry

what is the volume of 62.3 g of nitrogen gas at STP

*asked on April 11, 2010* -
## statistics

What is meant by the 95% confidence interval of the mean ? That 95% of my sample is OK to do more tests. That I am 95% confident that the confidence interval will contain the parameter being estimated. That 5% of my sample is not OK. That I am 95% sure

*asked on August 17, 2010* -
## Calculus

Given f'(x)=(2-x)(6-x), determine the intervals on which f(x) is increasing or decreasing Options: 1) Decreasing (-∞,2); increasing on (6,∞) 2) Decreasing (2,6); increasing on (-∞,2)U(6,∞) 3) Decreasing (-∞,2)U(6,∞); increasing on (2,6) 4)

*asked on December 26, 2018* -
## Math

when z is divided by 8, the remainder is 5. What is the remainder when 4z is divided by 8. Can you please explain this to me step by step? I'm having difficulty understanding why the answer is 4

*asked on January 26, 2017* -
## English

The sky grew dark with the approaching storm clouds. grew is verb , but dark is adjective I believe. Would this still be a transitive verb?

*asked on November 3, 2014* -
## math

anna bought 3 types of fruit for a fruit salad. She paid three times as much for buleberries as for pears and $2.50 less for strawberries than for blueberries. A) define a variable and write algebraic expressions to represent the amount she spent on each

*asked on November 24, 2012* -
## geometry

M is the midpoint of JK. find the coordinates of K. 1. J (-8,4) M (-1,1) 2. J (9,-5) M (5, -2) 3. J (0,11) M (-3,2)

*asked on September 21, 2015* -
## Ap algebra

Question 1: if a function is undefined at a point can that point be its domain. Explain Question 2: explain what is meant by the minimum value of a function

*asked on August 26, 2015* -
## math

a bank teller has 54 in $5 and $20 bill s. the total value is $780. how many 5 dollars are there

*asked on February 7, 2013* -
## Physics

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

*asked on September 21, 2011* -
## 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

*asked on June 9, 2011* -
## eco

Assume that American rice sells for $100 per bushel, Japanese rice sells for 16,000 yen per bushel, and the nominal exchange rate is 80 yen per dollar. Suppose that rice is the only commodity in the world. What would happen to the real exchange rate

*asked on November 19, 2008* -
## Math

A Texas oil drilling company has determined that it costs $25,000 to sink a test well. If oil is hit, the revenue for the company will be $500,000. If natural gas is found, the revenue will be $150,000. If the probability of hitting oil is 3% and of

*asked on August 2, 2017* -
## Accounting 220

On January 1, 2014, Muoy Machining Co. purchased a compressor and related installation equipment for $72,500. The equipment had a three-year estimated life with a $12,500 salvage value. Straight-line depreciation was used

*asked on April 30, 2016* -
## Physics

The tortoise and the hare are in a race of 1000m distance. The tortoise travels the entire race at a speed of 2.0 m/s while the rabbit runs the first 200 m @ 2.0 m/s. Then he stops to take nap for 1.3 hrs and awakens to finish the last 800m with an average

*asked on September 22, 2015* -
## Tsi math

A rectangular room measures 20 by 7 feet Find the cost of installing a strip of wallpaper around the room if the wallpaper costs $0.98

*asked on March 20, 2015* -
## Trigonometry

Solve the equation, where 0° ≤ x < 360°. Round approximate solutions to the nearest tenth of a degree. (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 3 sin x − 3 cos x = 1

*asked on October 22, 2014* -
## Calculus

Find an equation of the tangent line to the graph of the function f through the point (x0, y0) not on the graph. To find the point of tangency (x, y) on the graph of f, solve the following equation of f '(x). f '(x) = y0 − y/x0 − x f(x) = √x (x0, y0)

*asked on August 4, 2014* -
## Physics

A student performs a ballistic pendulum experiment using an apparatus similar to that shown in the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rises

*asked on February 20, 2014* -
## Chemistry

HC8H4O4K + NaOH = H2O + H4C8O4KNa I'm given the volume of NaOH in mL (ex: 9.11 mL), and I have to convert it to moles. How can I do that conversion? Please help by explaining if you can, I've had trouble with this problem for the whole week..

*asked on October 7, 2012* -
## 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

*asked on August 8, 2011* -
## Statistics

Studies find a negative correlation between hours spent watching television and scores on reading tests. Does watching television make people less able to read? Probably, but this doesn't follow from the data. The studies are observational, and it might be

*asked on April 14, 2009* -
## Math

A shoe box is an example of what geometric solid?

*asked on March 22, 2009* -
## Ap Calculus

Find the area of the region bounded by the curves y=x^2-1 and y=cos(x). Give your answer correct to 2 decimal places

*asked on February 13, 2019* -
## Calculus

If f is a function such that (f(b) - f(a))/(b-a) =2, then which of the following statements must be true a) f(a) = f(b) =2 b) the slope of the tangent line to the function at x =a is 2 c) The average rate of change of the function on the interval [a,b] is

*asked on December 20, 2018* -
## chemistry

Calculate the concentration of all species in a 0.20 M KF solution.

*asked on March 7, 2017* -
## Math

Two ships leave port at 4 p.m. One is headed N38°E and is travelling at 11.5 km/h. The other is travelling at 13 km/h, with heading S47°E. How far apart are the two ships at 6 p.m.? i am in grade 11 :), studying ahead of the class :) its 8 pm here, this

*asked on January 3, 2016* -
## Math

using four different digits, what is the least sum you can get when you add two 2-digit numbers? Write your problem

*asked on September 22, 2014* -
## english 3 A

Which one of the following is not an example of Puritan literature? A. Magnalia Christi Americana B. The Sot-Weed Factor C. The Bay Psalm Book D. The Day of Doom

*asked on October 18, 2012* -
## statistics

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

*asked on August 20, 2010* -
## math 2

if r=5z, then 15z=3y, then r= ?

*asked on April 10, 2010* -
## math

How do I convert the polar equation r - 3cos(theta) = 5sin to cartesian equation form?

*asked on March 22, 2010* -
## Math

You deposit $1000 in an account at the Lifelong Trust Savings and Loan that pays 7% interest compounded quarterly. By how much will your deposit have grown after 4 years?

*asked on March 9, 2009* -
## math

write an equation in general form with no y-intercept and passes through (3,6)

*asked on May 6, 2020* -
## Physics

How long does a car with an acceleration of 2.0 m/s2 take to go from 10 m/s to 30 m/s a. 3 m b. 6 m c. 18 m d. 36 m

*asked on December 8, 2016* -
## Stoichiometry

Equation to use Al + Cl2 -> AlCl3 You have 8.6 moles of aluminum, how much in moles of chlorine do you need to react completely? Desperate. Trying to teach daughter on the spectrum and I'm stumped on how to start.

*asked on November 13, 2016* -
## Math

For every 5 highlighters that Agnes buys , she gets 1 free. If Agnes needs 80 highlighters, what is the least number of highlighters she has to buy?

*asked on November 12, 2016* -
## Math

During summer vacation, Sanjay writes letters and postcards to his friends at home. A letter costs $0.41 to mail and a postcard costs $0.21 to mail. Sanjay writes to 8 friends and spends $2.08. How many letters and postcards he sends.

*asked on September 18, 2016* -
## Statistics

A volunteer ambulance service handles 0 to 5 service calls on any given day. The probability distribution for the number of service calls is as follows: one column has number of service calls (X) those numbers are 0 1 2 3 4 5. The next column Probability P

*asked on February 13, 2016* -
## 6th Grade Math

Caleb sold boxes of candy. Some sold for $2, and some sold for $3. He sold a total of 35 boxes and received $92. How many boxes did he sell for $2?

*asked on October 7, 2015* -
## Physics

Nitrogen boils at -196°C. What is the corresponding temperature in the Fahrenheit scale? A) -290°F B) -346°F C) -315°F D) -196°F E) -321°F

*asked on September 9, 2015* -
## ela

1. what is the ordered pattern of rhymes at the ends of lines of a poem or a verse called?

*asked on March 21, 2015* -
## Chemistry

To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 10.9 g, and its initial temperature is -12.0 °C. The water resulting from the melted ice reaches the temperature of your skin, 29.6 °C. How much

*asked on April 12, 2014* -
## Psychology

Marvin collects things, not cars, or baseball cards, or even beer bottles. Marvin collects everything. He cannot seem to stop picking up "stuff" from the street or dumpsters. If he attempts to pass by a target for collection, he is overwhelmed with tension

*asked on July 26, 2013* -
## physics

A human hair is approximately 55 µm in diameter. Express this diameter in meters. Answer in units of m

*asked on October 22, 2012* -
## English

Do you capitalize mom in the phrase your mom?

*asked on February 27, 2012* -
## College Hca 210

Write a 350- to 700-word paper on one of the following laws: HIPAA (1996) or EMTALA (1986). Pretend you are a health care manager employed at a small community hospital responsible for educating your staff about HIPAA (1996) or EMTALA (1986). Include the

*asked on January 30, 2012* -
## Geometry

what is the supplement of B if B=(3x-16)?

*asked on November 6, 2010* -
## Social Studies

Does anyone know of any words from the Medieval times that starts with the letter "O"?

*asked on May 1, 2010* -
## Corprate Finance

An initial investment of $400,000 will produce an end of year cash flow of $480,000. What is the NPV of the project at a discount rate of 20%?

*asked on April 23, 2010* -
## Microeconomics

Consider public policy aimed at smoking a.) Studies indicate that the price elasticity of demand for cigarettes currently costs $2 and the government wants to reduce smoking by 20%, by how much should it increase the price? b.) If the government

*asked on October 21, 2009* -
## Math

In rectangle MNPQ, the ratio of the length of MP is 4:5. a) Does this ratio tell you how long MN is? Explain. b) What if MN is 12cm long. How long is MP? Use a diagram to illustrate your answer. Show your work.

*asked on September 28, 2008* -
## Chemical Bonding

Predict the type of bond present between carbon and suffer in vulcanized runbber? Is that ionic. Please tell me how I can figure out what bonds are present in different chemical reactions. Like phospherous nad oxygen in a DNA molecule.

*asked on January 14, 2007* -
## Math

During a triathlon,sharon swims 1/4 of the total remaining route.She runs the rest of the route. If she runs 3600 meters ,find the total distance of the triathlon route.

*asked on November 18, 2019* -
## Calculus

Find the range of the function F(x)= integral from negative 6 to x of √(36-t^2) dt

*asked on March 12, 2019* -
## Calculus

Find the absolute maximum value for the function f(x)=x^2 - 3 , on the interval [-4,0) U (0,3]

*asked on December 26, 2018* -
## Calculus

If f(x) is a continuous function defined for all real numbers, f(-1)=1, f(-5)=-10, and f(x)=0 for one and only one value of x, then which of the following could be that x value? a) -6 b) -5 c) -4 d) 0

*asked on December 20, 2018* -
## Chemistry

How much heat is required to convert 9.00 g of water at 100°C into steam at 100°C, if ∆Hvap for water = 40.7 kJ/mol?

*asked on July 28, 2018* -
## science

1. all of the life functions are carried out by cells in a living organisms in order to A. Perform Synthesis B. Maintain Homeostasis C. Keep an Internal steady state D. Both c and d 2. If an -------------------- were digested the product would be

*asked on March 17, 2018* -
## Chemistry

29.25g of sodium chloride is added to water and undergoes electrolysis according to this equation 2Cl-=Cl2 Calculate the mass of chlorine produced. I am lost with this one !

*asked on December 3, 2017* -
## Math

I need help, please find the exact value of 2log3 27+log3 (1/3)-log3 3^1/2 many thanks

*asked on October 10, 2017* -
## anthropology

2 key differentiators and 2 examples of anthropology compared to history and sociology. I found the definitions of each- Cultural anthropology-study of living people and cultures and they actually live with the people they study Archaeology- a subclass of

*asked on September 26, 2017* -
## Statistics

A random sample of size n is to be drawn from a population with a mean = 500 and sd = 100. What sample size would be necessary to ensure a standard error of 25? Sample sizes are whole numbers.

*asked on November 15, 2016* -
## Pre-Calculus

The amount of force required to compress a spring is inversely proportional to the distance that it has been compressed. For one certain spring, it takes 5 pounds of force to compress it from its natural length of 18 inches down to 12 inches. How much

*asked on November 14, 2016* -
## math

A bird beats it's wing 24 times per second. How many times will it beat it's wing in one hour

*asked on October 22, 2016* -
## World history

1Which of the following would john locke most favor Republic Oligarchy Theocracy Absolute monarchy 2Whay was james i resistant to working with parliament He believed in the absolute power of kings He did not agree with the policies of the prime minister

*asked on August 10, 2016* -
## MATH

The Eiffel Tower has a surface area of approximately 76,000 square meters. A restoration company charges $80 per sq yard for re-painting. How muuch will it cost to paint the Eiffel Tower

*asked on May 2, 2016* -
## Chemistry

Three isotopes of Neon occur naturally: 20Ne (mass = 19.9924 amu) 21Ne (mass = 20.9938 amu) 22Ne (mass = 21.9914 amu) If the percent abundance of 21Ne is 0.2600, what is the percent abundance of 20Ne? How do I set up for these type of problems. I tried

*asked on February 12, 2016* -
## Chemistry

How do you Find the mass (in g) of Carbon in 2.980 g Carbon dioxide? I saw the question asked before but couldn't find a solution.

*asked on February 12, 2016* -
## chemistry

A metal tank contains three gases: oxygen, helium, and nitrogen. If the partial pressu of the three gases in the tank are 5 atm of O2, 900 mm Hg of N2, and 1.4 kPa of He what total pressure inside of the tank?

*asked on February 1, 2016* -
## COLLEGE ALGEBRA

Find the dimensions of a rectangle with a Perimeter of 100 cm - its width is 2/3 its length.

*asked on January 31, 2016* -
## Chemistry

How many grams of aluminum sulfate are produced if 15.7 g Al reacts with excess CuSO4?

*asked on January 20, 2016* -
## Math

Part A: Max rented a motorbike at $465 for 5 days. If he rents the same motorbike for a week, he has to pay a total rent of $625. Write an equation in the standard form to represent the total rent (y) that Max has to pay for renting the motorbike for x

*asked on November 25, 2015* -
## science

A glass bottle has a volume of 1L and weighs 500g. When half filled with oil, it weighs 1750g. What is the density of the oil in the bottle?

*asked on November 22, 2015* -
## chem

Consider the unbalanced reaction CO + H2O > CH4 + O2. All reactants in the gas phase. Calculate the H per mole of H2O reacted.

*asked on November 3, 2015* -
## chem

Fe3O4(s) + C(s) > CO2 + Fe Balance the chemical reaction and calculate how many moles of Fe3O4 must be reacted to produce 440 gr CO2 (the > is an arrow)

*asked on November 2, 2015*