Posts by Linda

Total # Posts: 1,568

Science
why would a DNA structure in which each base type could form hydrogen bonds with any of the other 3 base types not produce a molecule that could be replicated easily?.

Statistics
in a study of a weight loss program 30 subjects lost a mean of 2.6lbs after 12 months. methods of statistics can be used to show that if this diet had no effect, the likelihood of getting these results is roughly 6 chances in 1000. does the weight loss program have statistical...

Spanish
I found this online to help with infinitives but what I don't understand is in the second example "el saber" is acting as a verb isn't it? because the translation is "knowing" so why did the writer say putting "el" in front of the ...

geometry
A candle manufacturer sells cylindrical candles in sets of three. Each candle in the set is a different size. The smallest candle has a radius of 0.5 inches and a height of 3 inches. The other two candles are scaled versions of the smallest, with scale factors of 2 and 3. How ...

Early childhood education
To be an effective worker in an inclusive early childhood classroom you

Math
Suppose that an animal's circadian rhythms tell it to eat a meal every 4h. How meals will the animal eat each day.

chemistry
what mass of gold can you extract from 34.94g of AuCl3 using electrolysis of an aqueous solution?

Business Math and Statistical Measures
You decide to take out an ordinary loan of $30,000 at 4%, on a 90 day note. In 45 days you decide to make a payment of $10,000 on the loan. What is your new principal? Expaln how you got answer. How much did you pay at the end of the loan overall? How does this differ from how...

social studies
What is hammurabi code

Chemistry
*The density of the original, undiluted bleach unknown was 1.042 g/mL.

Chemistry
Suppose a student diluted and titrated a bleach unknown exactly as described in the experimental procedure, except only a single titration was performed which required 12.62 mL of 0.100 M Na_{2}S_{2}O_{3} Calculate the number of moles of ClO in the sample titrated.

math
Write an addition story for two 3 digit numbers. Write your answer.

algebra
The big square is divided into nine congruent small squares. x+Y+Z=

Econ VERY URGENT, HELP!
Consider a simple economy consisting of only four firms. Firm A, a mining enterprise, extracts iron ore. Firm B, a Steelmaker, produces steel sheets. Firm C, a carmaker, makes automobile while Firm D produces automobile tires. In 2016, firm A extracts 50,000 tons of ores, ...

Econ URGENT HELP!
Consider a simple economy consisting of only four firms. Firm A, a mining enterprise, extracts iron ore. Firm B, a Steelmaker, produces steel sheets. Firm C, a carmaker, makes automobile while Firm D produces automobile tires. In 2016, firm A extracts 50,000 tons of ores, ...

VERY URGENT, HELP!
@writeacher hi, this prob is for Econ and need help very urgent

VERY URGENT, HELP!
Consider a simple economy consisting of only four firms. Firm A, a mining enterprise, extracts iron ore. Firm B, a Steelmaker, produces steel sheets. Firm C, a carmaker, makes automobile while Firm D produces automobile tires. In 2016, firm A extracts 50,000 tons of ores, ...

Computing GDP HELP PLEASE!!!!
Consider a simple economy consisting of only four firms. Firm A, a mining enterprise, extracts iron ore. Firm B, a Steelmaker, produces steel sheets. Firm C, a carmaker, makes automobile while Firm D produces automobile tires. In 2016, firm A extracts 50,000 tons of ores, ...

Easy Econ, help!
Recall the production frontier (ppf) model from intro Econ ( refer to the basic butter and guns graph that could be found on Wikipedia). What are the exogenous variables in this model and what are the endogenous variables? Briefly explain.

math
water flows into a reservoir at 2000l/min. the depth of the reservoir is to be kept constant by installing some discharge pipes 1m below the surface of water in the reservoir and diameter of the pipes are 25mm. calculate the number of pipes needed. I tried using the Bernoulli ...

check my work
They are all right.

MGT450
How is strategic planning different from a strategic analysis? 1) requires a lot of research about the external environment 2) requires buy-in and commitment from the participants 3) ends with short-and long-term recommendations 4) is designed to choose the best strategy for ...

Math
Write each rational number in the form a/b, where a and b are integers. 1) -6 2) 0.97 3) 18 4) 3.3 5) -2 1/8

Calculus
State the domain and range of the function f(x) = 2sin(sqrt(3x-1)) + 3 Why is this so difficult?

Calculus
log base 4 of 8/log base 8 of 16 question is to simplify can you rewrite it this way? 4^x = 8 --------- 8^x = 16

Calculus
ok so ex^2 ----- = e x^2 Thank you

Calculus
e^(1+2lnx) ----------- x^2 simplify

Calculus
If g(X) = 2+ln(x-5), find the inverse function, (g^(-1))(x) Solution: y = 2+ ln(x-5) e^y = 2 + x - 5 x = e^y + 3 y = e^x + 3 g^(-1) = y = e^x + 3 Is that right? I'm following an example - but don't really get it - how do I determine the domain and range - I know they ...

Calculus
Find the zero(es) of f(x) = (e^(7-2x)) - 1

math/Calculus
If h(x) = csc(x), find the inverse h^(-1)(x). express answer in terms of sin^(-1), cos^(-1) or tan^(-1) Don't know where to start -

Math
State the domain and range of f(x) = 2sin(sort(3x-1)) + 3

mathematical method
Find the magnitude of (2-i)(1+3i)(3+4i)

Math
The submarine is cruising at a depth of 50 meters, then dives 75 meters, then ascends (moves in the direction of the surface )60 meters, and then dives 45 meters. what is the submarine's final depth

MGT435
1) Refuses to say "no"

MGT435
According to the drama triangle, one common characteristic of the rescuer role is_______? 1) refuses to say "no" 2) initiates the attack 3) aggressive behavior 4) nonassertive behavior

Math-Calc
Find an equation of the tangent line to the curve 2(x2+y2)2=25(x2−y2) (a lemniscate) at the point (3,1). Please help.

English
In "Tokyo", ryo and Tsuruishi most likely decide to stay overnight at the inn because

Life orientation
human rights violations

economic
the south african government provides a few things to south african citizens such as welfares,subsidies,free education.

Social Studies
how important is the cooperation to the success or failure of the canning cooperation

math
Julie is four times as old as her daughter.In four years time she will be three times as old. How old are they now

math
1. A sum of money is invested in a business. In each year this investment earns 1 times as much as in the preceding year. If the investment earned a total of $29,250 in four years, how much did it earn in the fourth year? • CORRECT: $12,150 How to get it is to find out ...

Math
Juan employs something called a mirror method. He places a mirror exactly 12 meters from the bottom of a maple tree and then walks backwards until he sees an image of the top of the tree . From the tree which is angle 1 and from him is angle 2 these angles are congruent. He is...

chemistry
the air in a 4.00L tank has pressure of 1.70atm what is the pressure in atmospheres 1L

homework
Use the shell method y=14x-x^2, x=0, y=49

Math
Use the shell method y=14x-x^2, x=0, y=49

Math
@Steve, my teacher says the answer is supposed to be 1436/15 but I have to figure out how I got it. Find the area of the regions that are enclosed by the curves.

Math
Find the area between the two curves y=x^4-10x^2+36 and y=3x^2

chemistry
What is the main factor driving the difference in the spontaneity of the three reactions Cl^2,Br^2, and l^2?

chemistry
what is the molarity of an unknown acid if 40.5 ml. of the acid can be titrated to an end point by 20.5 mL. of 0.2250 M NaOH

Healthcare Statistic
A coding supervisor must determine the number of full-time equivalents (FTEs) needed to code 500 discharges per week. If it takes an average of 20 minutes to code each record and each coder works 7.5 productive hours per day, how many FTEs will the coding supervisor need?

Healthcare Statistics
It takes approximately 15 minutes to code one record. How many personnel hour would be needed to code 1424 discharges for the month.

Healthcare Statistic
An employee currently earning $13.85 per hour has been awarded a 3.5 percent merit raise. what will the employee's hourly salary be with is increase.

Statistics
After one month of operation, the health information services at community Health Center determined that there were two records misfiled out of the 450 active records. What is the filing accuracy rate for this area.

Statistics
Calculate the number of new shelving units needed for a medical record filing system based on eight shelves per unit at 36 inches per shelf. The average record size equals 0.30 inches, and the center anticipates seeing 4,500 patients the first year.

Statistics
If your HIM department has 100,000 active medical records and you received 5,352 requests for records within a six-month period, what is the request rate for the past six months.

Math
The equation x^2+12x=73 has two solutions. The positive solution has the form (sqrta)-(b) for positive natural numbers a and b. What is a+b? Thanks

math
60

Math
What is the solution of −23 a + 4 > –8?

chemistry
how to find the mole ratio of salt to water of Mo(NO3)2.5H2O CaSO4.2H2O (CaSO4)2.H2O

science
nickel complexes(ethylenediamine) with graph of absorbance vs wavelength

Algebra A
45

Algebra
The difference of two numbers is 10. Twice the larger number minus the smaller number is 14. What are the numbers?

chemistry
calculate joules release when 175g of steam condenses at 100c and cool the liquid to 35.00c

Macroeconomics
Suppose that the government decides to subject producers of this item to a unit excise tax equal to $2 per unit sold. What is the new market price? What is the new equilibrium quantity?

Math
A piece of plywood, the surface of which measures 8/9 square yard, is cut into sections each containing 2/9 square yard. How many sections are there?

Chemistry 101
what is CAH2 + H20

math
Perimeter of 26.length is 6 feet. What is the width

math
What is 1/3 of 12

Math
What is the volume of a 2 ft wide 2 ft long and 4ft high box?

Algebra 2
Use synthetic division to divide p(x) = 3x3 − 10x2 − 31x − 12 by (3x + 5). Then check the solution.

Language Arts
Is it B

Language Arts
So answer is D?

Language Arts
1. Which of the following sentences from the text contains an example of a metaphor? A. He looked like one of those ballerinas that dance just on the tips of their toes. B. Momma’s horrible snake-woman voice came out again and said “If you ever, ever...” C. ...

vocabulary
A sample sentence for example

math
1/4=?/8

fraction
Eight friends share two pizzas equally. How much if a pizza does each friend get?

Phyical Science
What technology is involved in gathering or using natural gas? How do we use natural gas to generate electricity?

Phyical Science
how do we use natural gas to generate electricity?

math fraction
Brian has 3 basketball cards and 5 baseball cards. What fraction of Brian's cards are baseball cards?

math fractions
Brian has 3basketball cards and 5 baseball cards. What fraction of Brian's cards are baseball cards?

Chemistry
A student titrates a 25.00 mL sample of HCl. If 20.50 mL of 0.175 M of KOH is required to reach the end point, what is the concentration of the HCl? 25.0 mL HCl x 1L/1000 mL x 0.175 M/1 L = 0.004375 mol HCl 0.004375 mol HCl/20.50 mL KOH x 1000 mL/1 L = 0.213 M HCl (I'm ...

Maths
A piece of ribbon is 50 cm long how many 10 1/2 cm length of ribbon can be cut from it? How much is left over?

English
1. Based on the reading selections in Unit 3 of Journeys in Literature, consider the varied purposes the authors had for writing. What do they reveal about diversity (variety) within the new nation? Note: Do not write about issues with diversity as we see them in the world ...

Physics
1. Name three different kinds of graphs that are often used to plot information and discuss the value of each. i have no idea what the heck this means

Gym
a baseball is a small ball that is hard like a softball and a kikball is the size of a soccerball

English Language
Find the complete subject and complete predicate in the following sentence: His choice included land in both Maryland and vVirginia.

math
1800

math
one-half of the students in a city school plan to enter liberal arts colleges and one-third of the students plan to go to junior college.The remaining 300 pupils expect to seek permanent employment after graduation.How many students are there in this school?

physics
An object is launched at a speed of 24.68 m/s from the top of a tall tower. The height y of the object as a function of the time t elapsed from launch is y(t) = –4.905 t2 + 18.01 t + 60.34, where y is in meters and t is in seconds. Determine: a) the height H of the tower;

Literature
What is the theme of "Greek Meets Greek

chemistry
how many rb atoms could be placed on a square surface that is 1.0cm on a side? The diameter of a rb atom is 4.95

Algebra
A man flies between two cities; on a windless day, he averages 120 mph round trip; on a windy day he averaged 140 mph with the wind; he averaged 100 mph against the wind; on the windy day, it took 15 extra minutes to make the round trip; what is the distance between the two ...

chemistry
The mass value for Br-79 is 78.918amu. Find the mass of Br-81

GRE prep
A sphere with diameter 1 unit is enclosed in a cube of side 1 unit each. Find the unoccupied volume remaining inside the cube.

science
A student adds 3 spoons of salt to 100 ml of water. The solution is clear with nothing on the bottom of the cup. One spoon of the salt has a mass of 5g. What is the mass of the solution? After the water evaporates what is the mass of the solid remaining in the cup?

science
a student adds 3 spoons of salt to 100 ml of water. the solution is clear, with nothing on the bottom of the cup. one spoon of the slat ha a mass of 5g. what is the mass of the solution? after the water evaporates, what is the mass of the solid remaining in the cup?

Math
Estimate. Then Find the sum. 740,758 -263,043 ----------

accounting
Event: One stockholder reported to the company that 330 shares of his East Hill stock had been sold and transferred to another stockholder for $3,700 cash. what effects does this event have on the balance sheet of a company? How do I input this in the balance sheet (asset= ...

Computer Programming
2. Chocolate Delights Candy Company manufactures several types of candy. Design a flowchart or pseudocode for a program that accepts a candy name (for example, "chocolate-covered blueberries"), price per pound, and number of pounds sold in the average month. Display ...

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