Friday

July 25, 2014

July 25, 2014

Total # Posts: 1,062

**College Algebra**

Thanks

**College Algebra**

i still don't get it. Thanks

**College Algebra**

Give two functions f(x) and g(x) such that f(g(2))=7

**College Algebra**

give a logarithmic function g(x) such that g(49)=2

**College Algebra**

Give a piece-wise function p(x) where p(2)=5 and p(-1)=3

**maths**

As compared to its first year of operation, ABC Company grew 8% in the second year and an additional 2% per year for the next two years. If total growth for years 2-4 was $45,000 over the first year’s sales of $150,000, how much did ABC Company grow in year 2?

**art history **

A mastaba is:

**phys**

I got it now. (2c)(450-T) = (c)(T-300) Solve for T

**phys**

The heat capacity of object B is twice that of object A. Initially A is at 300 K and B is at 450 K. They are placed in thermal contact and the combination is isolated. The final temperature of both objects is: ans is 400 K how?

**phys**

The coefficient of expansion of a certain steel is 0.000012 per C^(degree) . The coefficient of volume expansion, in (C^(degree))^-1, is: A) (0.000012)^3 B) (4pi/3)(0.000012)^3 C) 3 x 0.000012 D) 0.000012

**algebra**

Find all zeros of the polynomial P(x)=x^3 - 2 x^2 - 9 x - 30.

**us hist**

In comprison with John Kennedy, Lyndon Johnson was A. better educated B. more skillful at working the congress C. a better public speaker D. personally more charismatic Ans: D Eisenhower's attempt to develop better soviet-american relations was severely hurt by the A. disc...

**Psychology**

What is Classical Hierarchial Classification?

**psychology**

Which one of the following statements about intelligence is the most accurate a. Iq is a valid measurement, and environmental factors do not change mental ability b. Intelligence is mostlygenetic has the most variability between groups and is reliable regardless of the environ...

**Algebra II**

Opps square root symbols didn't come out right sorry.

**Algebra II**

This is what it looks like: (¡Ìn + ¡Ìn − 1) (¡Ìn − ¡Ìn − 1) = 1 for n ¡Ý 1

**Algebra II**

I have the same question for homework.

**Algebra II**

And it is the (square root of n + the square root of n-1)(square root of n - square root of n-1)= 1 for n great than or equal to 1.

**Algebra II**

It is a fuction.

**geometry**

What inequality represents the sentence below? The product of a number and 5 is no more than 8. A. 5n < 8 B. 5n > 8 C. 5n>8 D.5n<8

**geometry**

Kristen lives directly east of the park. The football field is directly south of the park. The library sits on the line formed between Kristen’s home and the football field at the exact point where an altitude to the right triangle formed by her home, the park, and the fo...

**nutrience**

What is the maximum heart rate for a 35-year-old? A. 121.1 B. 183.5 C. 187 D. 205.55

**us hist**

Grover Cleveland is to fathering a child out of wedlock as James G. Blaine is to: Questionable loyalty to his country Drug addiction Honesty Political reform None of the other answer choices is correct Not political reform. is it honesty....

**us hist**

You have many skills, a broad variety of work experiences and a college degree. Do you favor the Pendleton Act? Only in the eastern industrial regions Only in the southern states Yes No I know its not no. is it yes or..

**us hist**

Complete the following progression: AGRARIAN DISCONTENT; the GRANGE ASSOCIATION; FARMERS’ ALLIANCES; The Populist Party Unionization The election of Rutherford Hayes as President Coxey’s Army The Grange associations is it the populist party

**econimic**

Command economies: A. Are considered a type of mixed economy B. Are considered a type of free market economy C. Oppose private property, free market pricing, competition, and consumer choice D. Encourage private property, free market pricing, competition, and consumer choice

**Math**

Last will of an eccentric lady reads: I bequest $1000 less then one half of my estate to my beloved red cat. I bequest $800 less then one third of my estate to my favorite striped cat. I bequest $600 less then one quarter of my estate to my darling black cat. All my money must...

**phys**

never mind i got it.

**phys**

A disk with a rotational inertia of 2.0 kg.m^2 and a radius of 0.40 m rotates on a frictionless fixed axis perpendicular to the disk faces and through its center. A force of 5.0 N is applied tangentially to the rim. The angular acceleration of the disk is:

**chem**

One mole of pentanol (C5H11OH) contains how many hydrogen (H) atoms?

**chemistry**

sup

**science**

Given the following reaction: CaC2 + 2 H2O C2H2 + Ca(OH)2 How many moles of Ca(OH)2 will be produced if 5.800 g of CaC2 are reacted completely?

**phys**

A wheel starts from rest and has an angular acceleration of 4.0 rad/s^(2). When it has made 10 rev its angular velocity is:

**Chemistry**

You added how may mols NaOH? That's M x L = mols. What final volume do you have. You added 18.01 mL and 10 mL so total volume is 28.01 mL. Convert that to L., then M = mols/L Do I do 0.1M x .01801L = 0.001801mols? Then do M = 0.001801mols/0.02801L? I'm a little confuse...

**Chemistry**

I am trying to complete a lab called Precipitation Titration of Cobalt Chloride. I've done the experiment and I got that if you combine 18.01mL of 0.1M NaOH with 10mL of CoCl2, the precipitate is forms. Now how do I calculate the concentration of the amount of NaOH I added...

**Health**

What are the barriers that prevent older people from diverse groups from accessing mental health care for depression?

**Physics **

What is the partial pressure of water on a day when the temperature is 25C and the relative humidity is 33% P=___Pa

**statistics**

Using the 95% level of confidence, what is the confidence interval for the proportion of households represented at a town meeting

**Calculus Please Need Urgent3 :/**

Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. F(x)= (s^2)/(1+3s^4)ds from sqrtx to 1 F'(x)=? Thank you so much guys!

**Calculus Please Need Urgent2 :/**

Consider the function f(x) whose second derivative is f''(x)=8x+4sin(x). If f(0)=3 and f'(0)=2, what is f(x)? f(x)=??

**Calculus Please Need Urgent :/**

Find the most general antiderivative of f(x)=–8e^x–6secant^2(x) where -pi/2<x<pi/2 Note: Any arbitrary constants used must be an upper-case "C". F(x)=?

**Calculus Help Please!**

If f(x)=Integral (t^3+6t^2+4)dt from 0 to x then f''(x)=?

**PLEASE HELP!**

Let integral f(x)dx=9 from -6 to -1.5 integral f(x)dx=7 from -6 to -4.5 integral f(x)dx=4 from -3 to -1.5 A. Find integral f(x)dx from -4.5 to -3 B. Find integral (9f(x)-7)dx from from -4.5 to -3

**u,s history**

By the end of April 1975, which city fell to the North Vietnamese Army, leading to the unification of Vietnam?

**math**

If the consumption function is C = $200 billion + 0.6Y, (a) How much do consumers spend with incomes of $8.25 trillion? I got 5.2 trillion for this. (b) How much do they save? ??

**math**

(b) Round to nearest two decimal places.

**math**

Suppose you borrow $1,000 of principal that must be repaid at the end of two years, along with interest of 5 percent a year. If the annual inflation rate turns out to be 10 percent, (a) What is the real rate of interest on the loan? For this I got -5%. (b) What is the real val...

**Math**

A pile of gravel is conical in shape. If the diameter is approximately 6.8m and the height is 2.8m, what is the volume of gravel in the pile?

**statistics**

If there are 18 blue socks and 24 black socks what is the probability of pulling out 2 black socks?

**Math - Quadratics & Analytical Geometry**

I have a test tomorrow with a few sample questions that are expected to be on the test that I do not know how to properly do. 1)Find the slope intercept equation of the line passing through the intersection of the lines 2x-4y=1 & 3x+4y=4 and parallel to the line 5x+7y+3=0 2)Fi...

**math**

Nice! Thank You

**math**

B(0,5) F(0,3) G(30,3) C(30,5) Find the area, Area BFGC =

**Science**

I would say gas. A gas moves around freely and has lots of energy.

**Chemistry**

The net reaction for fusion on a star like our Sun is: 4H(1,1) ==> He(4,2) + 2e(0,+1) Calculate the mass defect for this reaction. If one atom of He is formed this way, calculate the energy released. If one Kg of He is formed, calculate the energy released. The masses of th...

**cal**

Finding Partial Derivatives Implicitly. Find dz/dx and dz/dy for 3x^(2)z-x^(2)y^(2)+2z^(3)+3yz-5=0 How would you type this in wolfram alpha calcultor to get the answer? Thanks,

**grammar**

special nouns are abstract nouns like names of qualities,emotions or ideas

**Chem**

if 0.25L of gas is placed in a container at 500K and 104 kPa and the temp is increased to 750K and the pressure is increased to 120kPa what is the new volume of the gas

**basic excel**

Write one Microsoft excel formula that works for conditions below on cell C1 for any number: a) IF A1+B1<=4, return $20 b) IF A1+B1>4 but <=9, return $35 c) IF A1+b1>9 but <=14, return $50 d) And IF A1+B1>15, return $75

**Algebra**

Two positive numbers differ by 11. When the larger number is divided by the smaller, the quotient is 2 and the remainder is 4. what are the numbers

**Math**

Jay b-3

**phys**

An object with an initial velocity of 12 m/s west experiences a constant acceleration of 4 m/s^2 west for 3 seconds. During this time the object travels a distance of:

**Math**

Find Curvature, find the curvature k of the curve, where s is the arc length parameter. r(s)=(3+s)i+j

**math vector**

Find the Principal unit normal vector to the curve at the specified value of the parameter. r(t)=ti+t^(2)j+lntk, t=1

**math vector**

r(t)=〈 2 sin t, 2 cos t, 4 sin^(2) t 〉 at the point (1, sqrt(3),1) For this it is t=pi/6 to (1,sqrt(3),1). Can you show me how it is t=pi/6?

**math vector**

How do you know that t=0 at (0,0,0)? How do you find it?

**math vector**

Find the unit tangent vector T(t) and find a set of parametric equations for the line tangent to the space curve at point P. r(t)=ti+t^(2)j+tk, P(0,0,0)

**math vectors**

Find the angle between two vectors. In radians and in degrees. u=<1,0,-3>, v=<2,-2,1> I got radians = 1.676 degrees = 96

**EASY Volume of shapes**

thanks for the help

**EASY Volume of shapes**

The right triangular prism has bases that are equilateral triangles. The height is 8 in and the side of the base is 5 in , what is the prism's volume?

**business math**

Weekly pay: $253.07 Not married Exemptions: 3 What is the federal tax? $19

**Math**

A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. During one particular week, the two cars went a combined total of 1250 miles, for a total gas consumption of 35 gallons....

**Math**

A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. During one particular week, the two cars went a combined total of 1250 miles, for a total gas consumption of 35 gallons...

**Math**

The sum of two numbers is 53 . The larger number is 13 more than the smaller number. What are the numbers?

**Math**

Can you simplify a4 b + a2b3 please thank you.

**World History**

Nevermind, I got it :)

**World History**

Someone help me, please!

**World History**

What factors spurred the technological development during Western Europe in 1500-1750? Are there particular conditions that favor technological innovation?

**math**

4+5 times 6/2

**us history**

Thank you very much Ms. Sue for your help. =)

**us history**

African American troops in the Union army: A.were from the begining an itergral part of mnay fighting units. B.distinguished themeselves in battles in Louisiana. C. None of these I read first. And I came up with B. is this right.

**us history**

C.

**us history**

ALL the following accurately characterize the advantages of the North and South EXCEPT: a. The Union had far greater industrial capacity, more railroads and more ships. b. The South had far more usable food supplies than did the Union. c. The Union had four times more white re...

**us history**

Manassas

**us history**

The first major battle of the civil war took place at Vicksburg Manassas Antietam Shenandoah I chose Antietam. Right

**Philosophy**

The view that knowledge is impossible is: A. Rationalism B. Empiricism C. Skepticism D. Constructivism E. Cognitivism

**ENG**

What are two strategies for incorporating meaningful dialogue in the learning process of the online classroom?

**physic**

Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is Suzie’s average acceleration? Answer in units of...

**physics**

Suzie (of mass 58 kg) is roller-blading down the sidewalk going 36 miles per hour. She notices a group of workers down the walkway who have unexpectedly blocked her path, and she makes a quick stop in 2 . 4 seconds. What is Suzie’s average acceleration?

**science**

Hans stands at the rim of the grand canyon and yodels down to the bottom. He hears his yodel echo back from the canyon floor 5.20 seconds later. Assume that the speed of sound in air is 340.0m per second. How deep is the canyon? Hint: Note that the time is for the sound to tra...

**Algebra 8th**

1a

**Economics**

The market equilibrium price for coffee beans in Ecuador is $2.75/pound, a price at which growers are unable to make a profit. Due to the lack of profits, many growers have stopped production and the output of coffee beans has fallen from 400 tons per year (capacity for the re...

**history**

Does Cortes' letter point out any possible problems with the use of primary source documents? Based upon the text, what are some examples of possible problems? Which is more reliable, a primary source or a secondary text?

**Chemistry**

A calorimeter contains 50.0 mL of water; both are at 21.2 degrees C. Then the 50.0 mL of water at 57.6 degrees C is added to the calorimeter. At equilibrium, the final temperature of the water and the calorimeter is 33.3 degrees C. Calculate the heat capacity, C, of the calori...

**Chemistry**

the density of Fe2O3 is 5.343g cc. What is the mass volume concentration of iron in Fe2O3

**Physics**

A 92 kg disk, with a radius of 0.97 meters, is rotating at 562 rpm. What is its angular momentum, to the nearest tenth of a Joule*sec?

**physics**

A pilot flying low and slow drops a weight; it takes 3.2s to hit the ground, during which it travels a horizontal distance of 155m . Now the pilot does a run at the same height but twice the speed. How much time does it take the weight to hit the ground?

**Chemistry**

one sample of magnesium fluoride produced 1.65kg of magnesium and 2.58kg of fluorine. A second sample produced 1.31kg of magnesium. How much fluorine (in grams) did the second sample produce?

**Physics**

An unstretched spring with spring constant 37 N/cm is suspended from the ceiling. A 3.3 kg mass is attached to the spring and let fall. To the nearest tenth of a centimeter, how far does it stretch the spring?

**math**

It's recommended that a person drink six 8-ounce glasses of water a day. Which expression shows how many ounces of water a person should drink over a 5-day period?

**Math**

Gregory filled a tank with 4 1/2 gallons of water. Linda filled the same tank with anothewr 2 1/3 gallons of water. finally, Meg added another 2 gallons of water. How many gallons of water were added to the tank?

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