# Posts by mel

Total # Posts: 609

**Pre-calculus**

If it helps, y = 50000.

**Pre-calculus**

Can someone help me with this equation: y = (2*10^(-44))*(e^(0.055x))?

**Math**

Topic: Water Footprint. City of New York 2011 rate of 7.64/100 cubic feet of water. Calculate the cost of each of the following based on this rate. Use the conversion factor of 7.48 gallons per cubic food. A. A standard washing machine uses approximately 50 gallons of water ...

**Math**

Suppose a person were to breath an average of 16 times per minute. How many years would it take for them to breath one billion times? Assume there are 365 days in one year. Round your answer to the nearest single year.

**Urgent math help!!**

I'm still a bit confused

**Urgent math help!!**

What is the value of sin? given that (?3,4) is a point on the terminal side of ? ? ?3/5 3/5 4/5 <my answer ?4/5

**economics**

Explain why we might be concerned about the potential for the misrepresentation of costs.

**Social studies **

Compare the experience of farmers,coal miners,and union labores during the 1920s. What did many have in common? 1.Economic prosperity 2. Public disapproval 3. Federal assistance 4. Financial hardship I choose A is it correct Ms. Sue

**Algebra**

How to write |y|-2=0 in standard form?

**Algebra**

its a -1 before the 0

**Algebra**

No it's not a typo .Rewrite Absolute value equations in standard form |3y+4|-|=0

**Algebra**

|3y+4|-|=0 Write in standard form

**Math**

I forgot to add the points on the graph of y=f(x): (-5,0),(-2,2),(0,0),(2,-4) and (4,0) y = 2f(x-3)-2

**Math**

I am struggling with how to start this problem. The following points are on the graph of: y=f(x) Use theorem to identify the corresponding points on the transformed functions. y = 2f(x-3)-2

**algebra**

So how did you get 1.4t in this equation

**algebra**

A couple purchased a house in 2005. In 2009 the house appraised for $475,000. The couple refinanced the house in 2014 and the appraisal was $468,000. The couple determined a linear relationship existed between the the number of years since 2005 and the appraised value of the ...

**Social studies **

Which of the following phrases might a Republican Congress have used to describe President Johnson's Reconstruction plans

**Math**

I know how to do long division it's just this problem I'm stuck on.

**Math**

Use long division to determine if the divisor is a factor of the dividend. (-x^2-94x+600)/(x+100)

**Math Geometry**

help with Drawing Triangles quiz

**Physics**

During takeoff, an airplane climbs with a speed of 180m/s at an angle of 42 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining overhead. How fast is the shadow of the plane moving along ...

**Government**

Went with Reed's answers, got 10/10. checked

**Chemistry**

This was a multiple chocie question, so the possible answers are: A) 20,000 L B) 1000 L C) 10,000 L D) 2000 L E) 200 L D, 2000 L, is apparently the correct answer, but I don't know how to come to that conclusion.

**Math**

72

**programming and visual basics**

Using pseudocode or a flowchart write a program that does the following: Design the logic for the game Hangman, in which the user guesses letters in a hidden word. Store the letters of a word in an array of characters. Display a dash for each missing letter. Allow the user to ...

**Language Arts**

what is the participle or participial phrase in the following sentence: The art students, brought by bus, toured the museum.

**science**

How can i prepare a 100ml, 0.1M phosphate buffer solution (pH = 7) out of Na2HPO4 and NaH2PO4

**Math**

It's not 7 plus each. I know one of the answers is 6 because my teacher said its 7 days after the 28th on a calendar. Feb 28th + 7 days is march 6th. And another option is 35 because that is 28+7 but I still need 3 more possible answers, according to my teacher. It's ...

**Math**

Explain the attern generated by each of your answers. Find 5 different numbers that could be used to fill in the blank. 7,14,21,28,___ Please help me out if you could :)

**L.o**

Overport

**Physics**

what maximizes our ability to recover elastic potential energy?

**Science**

What impact does storage of elastic energy have on the efficiency of hopping?

**Quick calc question**

Determine the interval on which f(x) = ln(x) is integrable. (0, ∞) [0, ∞) (−∞, 0) U (0, ∞) All reals

**Quick calc question**

Given that the antiderivative of f of x equals 1 divided by x is F(x) = Ln|x| + C, evaluate the integral from 1 to 2 of the 1 divided by x, dx. ln3 1/2 -1/2 ln2

**Quick calc question**

Use geometry to evaluate the integral from 0 to 10 of the function f of x, dx for f of x equals 5 for x less than or equal to 5 and equals the quantity 10 minus x for x greater than 5 . 12.5 25 37.5 Cannot be found

**programming logic and design**

Using pseudocode or a flowchart write a program that does the following: Allow the end user to enter the category the ad will appear in (ex. Automobiles), Number of words and Customer Name Calculate the cost based on 50 cents per word for the first 15 and 25 cents for each ...

**Quick calc question**

Which of the following definite integrals could be used to calculate the total area bounded by the graph of y = 1 – x2 and the x-axis? the integral from 0 to 1 of the quantity 1 minus x squared, dx plus the integral from 1 to 2 of the quantity 1 minus x square, dx the ...

**Quick calc question**

If f(x) and g(x) are continuous on [a, b], which one of the following statements is false? the integral from a to b of the sum of f of x and g of x, dx equals the integral from a to b of f of x, dx plus the integral from a to b of g of x dx the integral from a to b of the ...

**Quick calc question**

Determine the interval on which f(x) = ln(x) is integrable. (0, ∞) [0, ∞) (−∞, 0) U (0, ∞) All reals

**Quick calc question**

Given that the antiderivative of f of x equals 1 divided by x is F(x) = Ln|x| + C, evaluate the integral from 1 to 2 of the 1 divided by x, dx. ln3 1/2 -1/2 ln2

**Quick calc question**

Use geometry to evaluate the integral from 0 to 10 of the function f of x, dx for f of x equals 5 for x less than or equal to 5 and equals the quantity 10 minus x for x greater than 5 . 12.5 25 37.5 Cannot be found

**Quick calc question**

Write the Riemann sum to find the area under the graph of the function f(x) = x2 from x = 1 to x = 5. 1. the summation from i equals 1 to n of the product of the quantity squared of 1 plus 5 times i over n and 4 over n 2. the limit as n goes to infinity of the summation from i...

**Physics**

Two identical charges repel each other with a force of 10-5 N when they are 20 cm apart. a.) What is the force on each when they are 5 cm apart? b.) When they are 100 cm apart?

**Quick calc question**

The Riemann sum, the limit as the maximum of delta x sub i goes to infinity of the summation from i equals 1 to n of f of the quantity x star sub i times delta x sub i , is equivalent to the limit as n goes to infinity of the summation from i equals 1 to n of f of the quantity...

**algebra**

simplify by removing factors of 1: 2p^2+10p+12/4p^2-4p-48

**Quick calc question**

Use the table below to evaluate the derivative with respect to x of g of f of 2 times x at x = 1. x 1 2 3 4 f(x) 6 1 8 2 f ′(x) 6 1 8 2 g(x) 1 4 4 3 g ′(x) 9 5 5 –4

**Quick calc question**

For f of x equals the quotient of the quantity 1 minus x and the quantity 1 plus x and g of x equals the quotient of the quantity x and the quantity 1 plus x, find the simplified form for f [g(x)] and state the domain.

**Quick calc question**

A particle moves on a line away from its initial position so that after t hours it is s = 4t^2 + t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.

**Quick calc question**

Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(4x) in the interval [0, π].

**Calculus**

Find for dy/dx 4 – xy = y^3.

**calc**

A particle moves along the x-axis with position function s(t) = e^(cos(x)). How many times in the interval [0, 2π] is the velocity equal to 0? 1 2 3 More than 3< my nswer

**algebra**

A small garden measures 14 ft by 6 ft. A uniform border around the garden increases the total area to 209 ft2. What is the width of the border?

**Calculus**

The side of a square is measured to be 10 ft with a possible error of ±0.1 ft. Use differentials to estimate the error in the calculated area. Include units in your answer.

**Calculus**

Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 16cm and a height of 8cm, at the rate of 4 cm^3/min. At what rate is the depth of the water changing at the instant when the water in the tank is 6 cm deep? Show all work and include ...

**Calculus**

The position function of a particle in rectilinear motion is given by s(t) = 2t^3 – 21t^2 + 60t + 3 for t ≥ 0. Find the position and acceleration of the particle at the instant the when the particle reverses direction. Include units in your answer.

**Calculus**

What is the maximum volume in cubic inches of an open box to be made from a 16-inch by 30-inch piece of cardboard by cutting out squares of equal sides from the four corners and bending up the sides? Your work must include a statement of the function and its derivative. Give ...

**Calculus**

Find the x-coordinates of any relative extrema and inflection point(s) for the function f(x) = 3x^(1/3) + 6x^(4/3). Please use an analysis of f ′(x) and f ′′(x).

**calc**

Given the position function, s of t equals negative t cubed divided by 3 plus 13 times t squared divided by 2 minus 30 times t, between t = 0 and t = 9, where s is given in feet and t is measured in seconds, find the interval in seconds where the particle is moving to the ...

**Science**

What's the difference between ambient temperature and body temperature?

**Mechanical Behavior on Materials / math**

the first one I have: sigma=-(P*l_AB^3)/(3*E*I)

**Mechanical Behavior on Materials / math**

The television coverage of the World Series showed several remarkable slow-motion views of the deflection of the bat as it hit the ball. Major league wood baseball bats are made of ash. A typical major league bat has a length of 0.95m and a tapering circular cross section. The...

**Chemistry**

A solution of ammonia and water contains 3.70×1025 water molecules and 7.10×1024 ammonia molecules. How many total hydrogen atoms are in this solution?

**geometry**

The midpoint of uv is (5 -11). The coordinates of one endpoint are u(3,5). Find the coordinates of endpoint of v.

**Physics**

After an average acceleration of 3.21 m/s2 during 2.41 s, your car reaches a velocity of 15.9 m/s. Find the car\'s initial velocity.

**English**

What does the light at the START of the tunnel mean? I know what the light at the end of the tunnel means, that there's always help, but I have no clue what to say for a speech about the light being at the start.

**Math**

159,103,47,

**Calculus**

A particle moves along the x-axis with position function s(t) = e^(cos(x)). How many times in the interval [0, 2π] is the velocity equal to 0?

**chemistry**

In a dry cell, MnO2 occurs in a semisolid electrolyte paste and is reduced at the cathode. The MnO2 used in dry cells can itself be produced by an electrochemical process of which one half-reaction is shown below. Mn2+(aq) + 2 H2O(l) MnO2(s) + 4 H+(aq) + 2 e - If a current of ...

**chemistry**

If 2.29 mL of a stock solution of acetic acid with a concentration of 0.723 M is mixed with 15.75 mL of water, what is the concentration of the diluted solution?

**Chemistry**

Someone help me with my titration molarity calculation please!? I have titrated 1.000 mL of Ca(IO3)2 with 2.197 ml of 0.022 M thiosulfate. First I found the moles of thiosulfate present with 0.002197 L x 0.022 M = 4.8388E-5. The mole ratio of S2O3^-2 and IO3- should be 6:1 (...

**Chemistry**

A solution is prepared by mixing 37.5 mL of 0.20 M (CH3)3N with 50.0 mL of 0.20 M (CH3)3NHC and then diluting the mixture to a total volume of 100.0 mL. Calculate the pH of resulting solution. So far I have been able solve the mols of the two chemicals. (CH3)3N being 0.20M/....

**chemistry**

It is found that an average volume of 24.25 ml of approximately 0.1 M NaOH is required to reach an endpoint in a titration with 25.00ml of 0.09917 M HCl solution. What is the NaOH concentration? Make sure to give answer to four significant figures.

**Math**

Is it 8 pails of water?

**Math**

A custodian pours1/8 gallon of cleaning solution into each pail of water that she uses. how many pails of water and cleaning solution can the custodian make using 16 gallons of cleaning solution?

**math**

Eric and Frank want to equally share 4/3 feet of rope. What length of rope should each friend get? Explain how to use a drawing to help solve the problem.

**Math**

A rectangular park has an area of 2_3 square mile. The length of the park is 22_3 the width of the park. What is the width of the park? this is the example of how they want them solving it The width of the room is 5/6 the length of the room. What are the dimensions of Kamal&#...

**Biology**

Are the p1 and p2 generations pure breeding?

**Social Studies**

HELP PLEASE!!! How important is India's geography to the beliefs of Hinduism?

**math**

Explain why an account balance less than -40 dollars represents a debt greater than 40 dollars.

**math**

Thank you Ms. Sue. I need help with this problem. The surface of Jupiter is made of colorful clouds created by various chemicals in the atmosphere. The temperature at the top of the clouds is -230 degrees F. The temperature below the clouds is 70 degrees F. Which temperature ...

**math**

lilt saw a jelly fish at 6 feet below sea level. She saw a blue fish at 10 feet below sea level. What is the distance between the blue fish and the jelly fish? Is the answer -4 feet?

**math**

Nathan deposited 7/9 of his allowance into his savings account. He spent the remaining amount, or $2.50. How much did Nathan deposit into his savings account? Should I multiply 7/9 *2 1/2 or 7/9 * 250

**Biology - Genetics**

If genes a, b, c, and d are genetically linked to each other, does it follow that a recombination experiment would detect genetic linkage between a and d?

**Math**

Thank you, Ms. Sue the answers are 3 and 4

**Math**

Ms. Sue, do you agree with Shimme about my answers

**Math**

A gallon of gasoline is more than ___ liters but a little less than ___ liters. I think the answers are 4 and 5. Am I correct?

**math**

In a recent survey 5/8 of pet owners say they allow their pet to go outside. Of these, 1/3 allow their pet outside without supervision. Does 5/8*1/3 express the fraction of the pet owners surveyed that allow their pet outside without supervision? My answer is yes. Did I do good?

**Math**

true or false- the product of two fractions that are each between 0 and 1 is also between 0 and 1

**Genetics**

Why are emerging f2 progeny frome crosses one, two, and three should be counted and phenotyped over a period of seven days? I have... for the first say of emergence, cultures produce more females than males. On successive days, the proportion of males increase until the sex ...

**math**

By what fraction would you multiply 8 1/2 so that the product is about 5? Plesae explain.

**Language arts**

thnxs so much really

**Language arts**

god bless america. %100

**Finance**

1. Following is the projected net income stream associated with the use of Zartek technology. (Note: this net income stream does not take into account that Zartek’s owners invested $2,000 to develop Zartek in Year 0.) Globus Maximus Enterprises would like to buy the ...

**language arts**

@Donald Trump lol

**Chemistry**

Thank you! I understand all except 2c. I did this way, is it true? M1V1= M2V2 M1= 15 M V1= ? M2= 1/100ml= 10/1000ml = 10 M V2= 100 ml And so I find V1= 67 ml .

**Chemistry**

My chemistry is bad. I know these are very easy but I cannot solve them . 1. a) Prepare 200 ml of 2 M HCl solution from stock bottle containing 37% w/w HCl and d = 1.2 (g/ml). MWHCl = 36.5 g b) Calculate M of 37% w/w HCl solution? d= 1.2, then solve the above problem 2. a) ...

**Please help**

I've done a decent job helping my daughter with this stuff, but it's been awhile since I was in school & just can't quite figure it all out.

**7th grade math**

Two step equations: Vincent started the year with $254 in his account at the health spa. Each time he uses the spa, $15 is taken out of the account. How many more times can he use the spa if he has already had $180 taken out of his account this year? I mostly just need to know...

**Math 112**

A student finds the value of square root of 3 on a calculator and says that this is the exact value of square root of 3 . How do you respond?

**Statistics**

Service times for customers at a post office follow some right-skewed distribution with mean 2.91 minutes and standard deviation 1.74 minutes. (a) Can you calculate the probability that the average service time for the next two customers is less than 2.64 minutes? If you can...