# Carol

Popular questions and responses by Carol-
## college matematics

you are dealt one card from a standard 52 card deck find the probability of being dealt a heart

*asked on February 5, 2013* -
## finite math

The probability that a randomly selected individual in a country earns more than 75,000 per is 10.5%. the probability that a randomly selected individual in a country earns more than 75,000 per year, given that the individual has earned a bacholer’s

*asked on June 17, 2014* -
## probability

A golf ball is selected at random from a golf bag. If the bag contains 2 orange balls, 5 red balls, and 18 brown balls, find the probability of the event. That the golf ball will be orange or red.

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

How do I prepare 10% w/v HCl from 37%(w/w) HCl (density 1.19g/ml)? Thanks.

*asked on June 22, 2009* -
## finite math

Among 26-31 year old, 29% say they have written an editorial letter while under the influence of peer pressure. Suppose six 26-31 year old are selected at random. (a) that at least one has not written under the influence of peer pressure. (b) what is the

*asked on June 17, 2014* -
## Math for Educators

Use Gauss's approach to find the following sums (do not use formulas). a. 1 + 2 + 3 + 4 +...+ 102 b. 1 + 3 + 5 + 7 +...+1001 a. The sum of the sequence is ? My answer 102-51(103)= 5,253 b. The sum of the sequence is? My answer 500.3(1,002)=501,300.6 Are my

*asked on June 4, 2013* -
## finite math

Suppose that E and F are two events P(E and F)=0.1 and P(E)=0.4 what is P(F/E)?

*asked on June 17, 2014* -
## cost accounting

The East Company manufactures several different products. Unit costs associated with Product ORD203 are as follows: Direct materials $50 Direct manufacturing labor 8 Variable manufacturing overhead 10 Fixed manufacturing overhead 23 Sales commissions (2%

*asked on October 14, 2011* -
## physics

a 2.00 lb rock is dropped from a bridge to the water 50 below. a. what is the velocity as it hits the water? b. how long does it take to hit the water? c. What is its kinetic energy as it hits the H2o?

*asked on November 24, 2013* -
## Chemistry

How much heat energy is required to raise the temperature of 4.50 liters of water from 36 degrees celcius to 44.6 degrees celcius?

*asked on January 15, 2012* -
## childhood education

what does reseach show about the child;s relationship with the primary parental figure when the child has additional attachments to other people

*asked on May 13, 2011* -
## Physics

In a rescue, a 74.1 kg police officer is suspended by two cables, as shown in the figure. Cable A makes an angle θA = 32.0° with respect to the horizontal, and cable B, θB = 74.0°. Sketch a free body diagram. Calculate the tension in cable A.

*asked on October 10, 2015* -
## Intro to computers

you are trying to network two laptops together using a Ethernet cable but it isn't working. Which of the following selections might explain why it isn't working? A) using outdated CAT 3 cable B) using straight-through cable C) using a crossover cable D)

*asked on June 17, 2015* -
## finite math

According to a certain countries 43.8% of 3 year olds are enrolled in daycare. What is the probability that a randomly selected 3 year old is enrolled in daycare.

*asked on June 17, 2014* -
## Economics

Suppose a manager is interested in implementing third-degree price discrimination. The manager knows that the price elasticity of demand for Group 1 is -2 and the price elasticity of demand for Group 2 is -1.2. Based on this information alone we can

*asked on March 20, 2012* -
## phy

a rubber ball is thrown against a horizontal wall and bounces back with the same speed it came in at. The change in momentum vector of the ball is A) 10 m/s^2 B) in the same directions the ball's initial motion C) in the opposite direction as the ball's

*asked on November 4, 2016* -
## math

a bag contains 6 blue marbles and 10 red marbles. If you choose one marble at random, and then another marble at random, what is the probability that both marbles are blue?

*asked on July 22, 2016* -
## chem

Which of the following species is isoelectronic, Ba2+ and Ba, Al3+ and Ar, Cl - and Na+ , or Sr2+ and Se2-

*asked on July 12, 2011* -
## pharmacology

How many grams of dextrose are in 50ml normal saline solution

*asked on March 9, 2017* -
## Introduction to computers

What is the purpose of using templates in PowerPoint? A) integrates animation and audio automatically B) inserts a consistent look and format to the entire presentation C) inserts the required formulas automatically into the presentation D) imports fonts

*asked on June 14, 2015* -
## Physics

An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the object is 1.91 m/s, and its maximum acceleration is 6.20 m/s2. How much time elapses betwen an instant when the object's speed is

*asked on November 17, 2012* -
## Introduction to Psychology

Joaquin has been assigned a primary research project in his psychology class. He is to observe student behavior during a learning task andattempt to for a(an) ________. In order to do this, he must be able to describe principlesand events, and how they may

*asked on November 5, 2011* -
## statistics

at a certain college, there were 700 science majors,100 engineering majors and 500 business majors. if one student was selected at random, the probability that they are an engineering major is?

*asked on September 27, 2011* -
## chemistry

Suppose that a compound Z had a partition coefficient of 8 in ether-water. If 10g of z was dissolved in 100mL of water, and if the water solution was extracted with two 100 mL portions of ether, answer the following questions a) what is the total amount of

*asked on February 13, 2011* -
## Economics

A monopoly produces widgets at a marginal cost of $8 per unit and zero fixed costs. It faces an inverse demand function given by P = 38 - Q. What are the profits of the monopoly in equilibrium? A. $225 B. $120 C. $345 D. None of the statements associated

*asked on February 13, 2009* -
## Criminal Procedure

Which of the following are NOT sources of rights? a)Court decisions b)Police department policies c)Federal Constitution d)Statues I think b is the correct answer

*asked on November 3, 2014* -
## finite math (probability

suppose you toss a coin 100 times and get 57 heads and 43 tails. Based on the results what is the probability that the next toss will be head.

*asked on June 17, 2014* -
## college algebra

perform the indicated computation. write the answer in scientific notation (2x10^)(3.5x10^)

*asked on March 30, 2014* -
## Chemistry

Consider the reaction 2D2(g)+O2(g)→2D2O(l) What is the mass of heavy water, D2O(l), produced when 3.75g of O2(g) reacts with excess D2(g)?

*asked on October 11, 2013* -
## College Stats

Is .09 less than .05?

*asked on May 8, 2011* -
## english 30

"foremother" by lillian bouzane what is the significance of the poems title and how does it help develope the theme

*asked on November 14, 2009* -
## literacy

plain language searches do not work in expanded academic asap and may not work in other periodical databases because periodical databases

*asked on June 6, 2015* -
## finite math

Using the formula for PV (present value) of an oridinary annuity or the amortization formula to solve this problem. PV=13000 I=.03% PMT=500 n=? I have done it over and over and can't it correct

*asked on June 20, 2014* -
## finite math

Find the probability of P(E or F) if E and F are mutually exclusive P(E)=0.25 and P(F)=0.47

*asked on June 17, 2014* -
## probability

10. The probability that a randomly selected individual in a country earns more than 75,000 per is 11.5%. the probability that a randomly selected individual in a country earns more than 75,000 per year, given that the individual has earned a bacholer’s

*asked on June 17, 2014* -
## math

2. In a certain state, it has been shown that only 56% of the high school graduates who are capable of college work actually enroll in colleges.Find the probability that, among the 11 capable high school graduates in this state, each number will enroll in

*asked on March 30, 2014* -
## Math

Find the center and radius of the circle with equation x2 + y2 - 6x + 10y + 9 = 0. center ( ? , ? ) radius ?

*asked on January 19, 2014* -
## algebra

In a computer game, there are four levels. At the end of each level, a player gets three times as many points as he does in the previous level. At the end of finishing the fourth level, a player gets 5400 points. How many points did the player get at the

*asked on October 21, 2013* -
## college Mathematics

I have been trying to figure this out for day's please help if you can. A survey of 59 customers was taken at a book store regarding the type of novels purchased. The survey found 34 customers purchased mysteries, 27 purchased science fiction, 20 purchased

*asked on February 12, 2013* -
## physic =)

A bullet is fired directly upward from a rifle at ground level. Assuming a velocity muzzle of 490 m/s, and neglecting air resistance, find: A.height of the highest point reached. B.time required to reach this point. C.total time before the bullet returns

*asked on January 6, 2013* -
## math

Completely factor the expression 20x2 – 45y2

*asked on May 1, 2011* -
## SOCIOLOGY

What are some of the pros and cons of affirmative action?

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

what multiplication fact can you double to find 4X7?

*asked on February 25, 2009* -
## Chemistry

How many moles of Al are needed to form 2.43 mol of Al2Br6?

*asked on April 14, 2020* -
## pcycology

Deindividuation is related to mobs in the same way that _______ is related to groups. A. social prejudice B. persuasion C. attitude D. diffusion of responsibility

*asked on October 25, 2016* -
## Tech

What is special about the F and J keys on a standard keyboard? A. They have bumps ** B. They are in the exact center of a keyboard C. They are the keys that your middle fingers rest on. D. They are the keys between the home row. A.

*asked on September 6, 2016* -
## Principles of Public Speaking

An advantage of using narratives in your speech is that they: A- Explain abstract concepts B- Calm emotions C- Create excitement D- Clarify technical ideas I chose D. Would that b correct?

*asked on June 5, 2016* -
## computing

You are advising one of your neighbors about the HomeGroup feature of Microsoft. He wants to make sure that all of his computers support this feature. Which one of the operating systems below does not support HomeGroup? A. Windows 7 B. Windows RT C.

*asked on February 29, 2016* -
## Math for Educators

Find the sum of the sequence. 38+39+40+41+...+137 The sum is? My answer 175(99)= 17,325 Is this correct? If not how do I get the correct answer?

*asked on June 4, 2013* -
## Science

Are the following examples physical changes or chemical changes. Mixing yeast and sugar Dissolving sugar in water Slicing bread Baking bread Melting cheese

*asked on March 25, 2013* -
## college mathematics

Three people are to be selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person

*asked on February 4, 2013* -
## math

Three people are to be selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person

*asked on February 2, 2013* -
## math

Of the 15 teams in the National Hockey League Eastern Conference, three of them are based in canadian cities. Each year, eight of these teams qualify for the playoffs. Assuming that all the 15 teams have an equal chance of getting into the playoffs, what

*asked on November 7, 2012* -
## math

In a card game using a normal deck of playing cards containing 52 cards, 13 cards are dealt to a player. a) how many different combinations of cards are possible in that players hands? b) how many different hands are possible that consist ofnine spades and

*asked on October 21, 2012* -
## math

A jar contains six red marbles, four green marbles and five yellow ones. a) determine the number of ways in which any thee marbles can be selected? b) Determine the number of ways to select four marbles where two are red and two are yellow? c) Determine

*asked on October 21, 2012* -
## college algebra

suppose the revenue in dollars from selling x cell phones is R(x)= -1.2x^2+220x. the cost in dollars of selling x cell phones is C(x)=0.05x^3-2x^2 +65x+500. find the profit function P(x)=R(x)-C(x). find the profit if x=15 hundred cell phones sold

*asked on February 27, 2012* -
## college algebra

A steel drum in the shape of a right circular cylinder is required to have a volume of 100 cubic feet. express the amount of material required to make the drum as a function of the radius r of the cylinder. also how much material is required if the drum is

*asked on February 27, 2012* -
## Calculus

Suppose that the revenue in dollars from the sale of x campers is given by the formula shown below. R(x) = 58,000x + 38,000(10 + x)−1 − 4000 (a) Find the marginal revenue when 10 units are sold.

*asked on February 18, 2012* -
## Introduction to Psychology

Ms. Sue, I meant to say hypothesis for the question that starts with Joaquin has been assigned a primary research

*asked on November 5, 2011* -
## PSYCHOLOGY

He is never going to change. He is set in his ways," the cliet complained. "Let's think about it. Does this hurt you or him?" the therapist is applying: I put the answer as (a) a cognitive treatment approach. Is this correct?

*asked on October 30, 2011* -
## math

Given the quadratic function f(x) = x2 – 18x + 81, find a value of x such that f(x) = 16.

*asked on May 2, 2011* -
## calculus

verify the following identity cos(x+y) + cos(x-y)=2cosxcosy

*asked on April 22, 2011* -
## history

How did the Vietnam War, and the domestic opposition to it, come to dominate American politics in the 1960s?

*asked on February 21, 2011* -
## history

the island that became Rome northwestern frontier?

*asked on February 17, 2011* -
## physics

a guy walks one lap at 35 miles per hour, what is his velocity?

*asked on January 1, 2010* -
## Business Law

Dan, a driver for EZ Delivery Company, leaves a truck's motor running in neutral and carelessly forgets to set the parking brake while he makes a delivery. The truck rolls and crashes into a nearby gas station pump, igniting a fire that spreads quickly to

*asked on February 10, 2009* -
## managerial economics

Suppose the market for good X has a four-firm concentration ratio of 0.50. Furthermore, assume that total sales in the industry are $1.2 million. Based on this information we know that sales for the largest four firms in the industry equals (in aggregate)

*asked on February 6, 2009* -
## jewerly marking

925 is sterling what is825?

*asked on December 30, 2008* -
## ap bio

10 . Which one of the following statements is NOT true about the resting potential? A. The neuron's plasma membrane is much more permeable to potassium than to sodium. B. The concentration of sodium is much higher inside the cell than outside. C. The

*asked on November 13, 2008* -
## ap bio

16 .Action potentials are generated along a neuron because __________. A.of cytoplasmic streaming within the neuron B.depolarization of the membrane at one point causes an increase of permeability to sodium at the next point C.they are pulled along by

*asked on November 6, 2008* -
## ap biology

* how do (1) temperature and (2) pH affect the activity of this enzyme? include a discussion of the relationship between the structure and the !@#$%^&tion of this enzyme as well as a discussion of how structure and !@#$%^&ntion of an enzyme are affected by

*asked on November 4, 2008* -
## AED

What are the implications of "NCLB" on teachers, students in the classroom, and on schools and school districts?

*asked on August 16, 2008* -
## History

what was most benefited the United States in its war with Britain

*asked on April 8, 2020* -
## math

a plane is steering at S83degE at an air speed of 550 km/h. The wind is from N70degE at 85 km/h. Find the ground velocity of the plane to 1 d.p.

*asked on June 10, 2018* -
## Quantum Physics

1. Calculate the transition ratio between the 2P-1S and 3P-2S states of the hydrogen. 2. Find the first order correction in the energy for the states n = 3 of the hydrogen atom subject to a constant electric field in the z direction (effect Stark). What

*asked on May 16, 2018* -
## Quantum Physics

1. Calculate the transition ratio between the 2P-1S and 3P-2S states of the hydrogen. 2. Find the first order correction in the energy for the states n = 3 of the hydrogen atom subject to a constant electric field in the z direction (effect Stark). What

*asked on May 15, 2018* -
## Science

We think of our muscular system as the system that helps us move around. It also functions on an internal level by helping food movement in the ___________ and ____________, both parts of the digestive system. A) stomach; liver B) stomach; pancreas C)

*asked on March 28, 2018* -
## Ap Biology

In the case of water, solid water is less dense then liquid water. What is happening at the molecular level? a. Molecules move faster in ice than water. b. Hydrogen bonds break more easily in ice. c. Hydrogen bonds break more easily in water. d. Molecules

*asked on May 23, 2017* -
## Trig - 9th grade

Can you help me solve: 5sin2x + 3sinx - 1 = 0 Thanks

*asked on January 10, 2016* -
## algebra

How many cases would there be for an absolute value with 3 sets of absolute value symbols?

*asked on October 1, 2015* -
## Algebra

Jill, Meg, and Beth are sisters. Jill is 2 years younger than Meg. Beth is half as old as Meg. Use the same variable to write three algebraic expressions based on this situation. Tell what the variable represents and what each expression represents.

*asked on April 20, 2015* -
## psychology

which of the following has been demonstrated by research as a skill or ability that is induced via meditation? A) ability to raise metabolism B) ability to cure bacterial infections withou medication C) ability to lower body temperature D) ability to

*asked on March 14, 2015* -
## Personal finance

A 10 year bond has a coupon rate of 7% annually and a principal payment of $1000.00. Other similar bonds are paying 9% annually. To determine the value of this bond you must find the interest factors, IF at: A) 9% for 10 periods b) 9% for 20 periods c)

*asked on December 28, 2014* -
## math

At Soap ans Suds there are 16 washing machines in a single row with no space between each one.Each washing mashine is 2 feet 5 inches across. What is the total length of the 16 washing machines?

*asked on December 3, 2014* -
## algebra

8+3x6-4-1=13 where do I put parentheses

*asked on September 4, 2014* -
## finhite mat

using continuous compound interest formula find the indicated value A= 15625 P= 10900 T= 60months R= ?

*asked on June 23, 2014* -
## intro to chem

Calculate the amount of heat required to heat a 3.0kg gold bar from 23 degrees Celsius to 60 degrees Celsius

*asked on June 21, 2014* -
## finite math

The probability that a 3-year old garter snake will reach 4 years old is 0.62719. (a) what is the probability that two randomly selected will reach 4 years old? What is the probability that five randomly selected 3 year old garter snakes will reach 4 years

*asked on June 18, 2014* -
## finite math

A golf ball is selected at random from a golf bag. If the bag contains 3 black balls, 8 orange balls, and 4 brown balls, find the probability of the event. That the golf ball will be black or orange.

*asked on June 17, 2014* -
## finite math

A probability experiment was conducted in which the sample space of the experiment is S={1,2,3,4,5,6,7,8,9,10,11,12}, event F= {6,7,}, and event G={9,10,11,12}. Assume that each outcome is equally likely. List the outcomes of F and G?. find P(F or G) by

*asked on June 17, 2014* -
## probability

Find the probability of P(E or F) if E and F are mutually exclusive P(E)=0.41 and P(F)=0.47

*asked on June 17, 2014* -
## math

find the median for the given frequency score, x = 1,2,3,4,5,6,7,8,9,10 frequency, f = 1,1,3,3,5,7,5,5,7,1

*asked on April 2, 2014* -
## math

2. In a certain state, it has been shown that only 56% of the high school graduates who are capable of college work actually enroll in colleges.Find the probability that, among the 11 capable high school graduates in this state, each number will enroll in

*asked on March 30, 2014* -
## math

In a certain state, it has been shown that only 56% of the high school graduates who are capable of college work actually enroll in colleges.Find the probability that, among the 11 capable high school graduates in this state, each number will enroll in

*asked on March 30, 2014* -
## math

In a certain state, it has been shown that only 56% of the high school graduates who are capable of college work actually enroll in colleges.Find the probability that, among the 11 capable high school graduates in this state, each number will enroll in

*asked on March 30, 2014* -
## finance

the corner grocer has a 7-year, 6 percent annual coupon bond outstanding with a $1,000 par value. the bond has a yield to maturity of 5.5 percent. Which one of the following statements is correct if the market yield suddenly increases to 6.5 percent? The

*asked on March 5, 2014* -
## finance

the corner grocer has a 7-year, 6 percent annual coupon bond outstanding with a $1,000 par value. the bond has a yield to maturity of 5.5 percent. Which one of the following statements is correct if the market yield suddenly increases to 6.5 percent? The

*asked on March 5, 2014* -
## finance

he bonds issued by Stainless Tubs bear a 6 percent coupon, payable semiannually. The bonds mature in 11 years and have a $1,000 face value. Currently, the bonds sell for $989. What is the yield to maturity?

*asked on March 5, 2014* -
## physics

Forces of F1=975 N,F2= 745 N, f3= 1175 N and are applied at the same point. The angle between f1 and f2 is 60.0 degree and the angle between f2 and f3 is 30.0 degree. F2 is between f1 and f3 find the resultant force.

*asked on November 24, 2013* -
## Math for Educators

The first difference of a sequence is 8, 12, 16, 20,... The sum of the first two terms of the original sequence is 14. Find the first three terms of the original sequence. The first term of the original sequence is? 4 What is the second term of the

*asked on June 4, 2013*