Thursday

February 23, 2017
Total # Posts: 1,063

**science**

define the equivalents of one mole of glucose; L of solution, molecules of glucose, etc.

*September 8, 2011*

**5TH grade math**

is it 17.5 ms

*August 25, 2011*

**trig**

what is the reference angle for 17 pi/12?

*August 23, 2011*

**Algebra**

Slim Johnson was usually the best free-throw shooter on his basketball tam. Early in the season, however, he had made only 9 of 20 shots. By the end of the season, he had made all the additional shots he had taken, thereby ending with a season reacord of3 : 4. How many ...

*August 11, 2011*

**Algebra**

The numberator of a fraction exceeds the denominator by 3. If 3 is added to the numerator and 3 is subtracted from the denominator, the resulting fraction is equal to 3/2. Find the original fraction.

*August 11, 2011*

**Algebra**

What number must be added to the numerator and denominator of the fraction 7/19 to make the resulting fraction qual to 3/4?

*August 11, 2011*

**Math**

The numerator of a certain fraction is 3 times the denominator. If the numerator is decreased by 1 and the denomenator is increased by 2, the value of the resulting fraction is 5/2> Find the fraction.

*August 11, 2011*

**Algebra**

The numerator of a fraction exceeds the denominator. If 3 is added to the numerator and 9 is subtracted from the denominator, the new fraction is equal to 5/2. Find the original fraction.

*August 11, 2011*

**Algebra**

What number must be added to both the numerator and denominator by 3. If 3 is added to the numberator and 9 is subtracted from the denominator, the new fraction is equal to 3/2. Find the original fraction.

*August 11, 2011*

**Algebra**

The numerator of a certain fraction is 3 times the denominator. If the numerator is decreased by 1 and the denomenator is increased by 2, the value of the resulting fraction is 5/2. Find the fraction.

*August 11, 2011*

**Globalization**

rise of free markets.. how we got where we are now.. and the nature of the modern world economy.. ??

*July 27, 2011*

**Globalization**

Commanding Heights is a series of videos that portray various aspects of how different countries got reformed from war. Money is one of the investments that caused conflicts during this era. The government tried to develop ways the economic structure could improve by providing...

*July 27, 2011*

**Globalization**

What are the main questions that the Commanding Heights series is posing about globalization and economics and how does it fit into the concept of development?

*July 27, 2011*

**Chemistry**

Which pair of samples contains the same number of hydrogen atoms two moles of NH3 and three moles of N2H4 two moles of NH3 and one mole of N2H4 four moles of NH3 and three moles of N2H4 one mole of NH3 and one mole of N2H4

*June 29, 2011*

**math**

i need to know the vocabulary of a straight line

*May 31, 2011*

**Algebra 2**

Solve x^4-4x^3+4x^2-9=0 given that 1+isqrt2 is a root. I need all of the steps. Thanks

*May 26, 2011*

**Algebra 2**

You know that sometimes before a square root sign you have a number that is raised like an exponent.

*May 26, 2011*

**Algebra 2**

Simplify 2/^6sqrt8 I need all of the steps. Thanks

*May 26, 2011*

**Algebra 2**

Simplify sqrt(72x^3)-5xsqrt(2x). Assume that each radical represents a real number. I need all of the steps. Thanks

*May 26, 2011*

**Algebra 2**

Simplify: 2/^6sqrt8 I need all of the steps. Thanks

*May 25, 2011*

**Algebra 2**

Solve e^(2x-1)=3 I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

If logb^z=1/3logb^x+logb^y, write z in terms of x and y. I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Simplify: log6^(36/6^-10) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Are the functions f and g inverse functions if f(x)=5/3x+1 and g(x)=3(x-1)/5? I need all of the steps on how to determine this. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Simplify: (2^(1+sqrt2)/2^(1-sqrt2))^sqrt2 I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Solve x^4-4x^3+4x^2-9=0 given that 1+i sqrt2 is a root. I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Solve: 2-y=sqrt(y+4) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Simplify: 6/(3+2sqrt3) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Simplify: (2sqrt6-sqrt3)^2 I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Simplify: sqrt(72x^3)-5x sqrt(2x) I need all of the steps. I need this ASAP because this assignment is due tomorrow. Thanks

*May 25, 2011*

**Algebra 2**

Simplify: sqrt6(sqrt2/2+sqrt3)-sqrt8 I need all of the steps. I need this ASAP because this is due tomorrow. Thanks

*May 25, 2011*

**Global Issues**

Well if someone has seen this film they could help me answer these questions. Thanks

*May 24, 2011*

**Global Issues**

Questions for the movie Human Trafficking The Complete Miniseries: 1. Forms of entrapment/enslavement used 2. a. How does your identity disappear? b. How are you lost in or hidden from society? 3. ICE agents quote: Human Trafficking is the business of the future. Why? Also how...

*May 24, 2011*

**Algebra 2**

Solve: 25^(x+2)=5^(3x-3) I need all of the steps. Thanks

*May 24, 2011*

**Algebra 2**

For positive x and y, which expression is equivalent to (x^1/2-y^1/2)^2? a. x-y b. x+2sqrt(xy)+y c. x-2sqrt(xy)+y I need all of the steps to get to the right answer. Thanks

*May 24, 2011*

**Algebra 2**

Use the rational root theorem to determine which of the following could not be a root of 6x^3+23x^2-6x-8=0 I need all of the steps. Thanks

*May 24, 2011*

**Algebra 2**

How do you find the curve of g(x)=4x-x^2? I need all of the steps. Thanks

*May 24, 2011*

**Algebra 2**

1. Simplify: sqrt6(sqrt2/2+sqrt3)-sqrt8 2. Simplify: sqrt(72x^3)-5x sqrt(2x) 3. Simplify: (2sqrt6-sqrt3)^2 4. Simplify: 6/3+2sqrt3 5. Solve: 2-y=sqrt(y+4) I need all of the steps. Thanks

*May 24, 2011*

**Algebra 2**

Show that the following numbers are irrational: 1. sqrt3 2. sqrt6

*May 12, 2011*

**Algebra 2**

Find the number of times r is a root of P(x)=0. 1. P(x)=x^4+4x^3-16x-16; r=-2 2. P(x)=x^5+3x^4+2x^3-2x^2-3x-1; r=-1 3. When x^3-5x^2+4x+5 is divided by x-c, the quotient is x^2-3x-2 and the remainder is 1. Find c. Thanks

*May 12, 2011*

**Algebra 2**

Use the factor theorem to determine whether the binomial is a factor of the given polynomial. 1. t+sqrt2; P(t)=t^5+t^4+4t+4 2. z-i; P(z)=z^7+z^6+z^5+z^4+z^3+z^2+z+1 3. z+2i; P(z)=z^3+z^2+4z+4 Thanks

*May 12, 2011*

**Algebra 2**

Simplify: 1. 2log10^5+log10^4 2. 2log3^6-log3^4 3. log4^40-log4^5 4. log4^3-log4^48 I need to see all of the steps. Thanks

*May 12, 2011*

**Algebra 2**

Express as a logarithm of a single number or expression: 1. 5log4^p+log4^q 2. log10^x-4 log10^y 3. 4log3^A-1/2 log3^B 4. log5^M+1/4 log5^N 5. log2^M+log2^N+3 6. log5^x-log5^y+2 7. 1-3 log5^x 8. (1+log9^x)/2 I need to see all of the steps. Thanks

*May 12, 2011*

**Algebra 2**

If log10^9=0.95 and log10^2=0.30, find the following: 1. log10^9/2 2. log10^3 3. log10^36 4. log10^20/9 5. log10^900 6. log10^1/9 7. log10^1/2000 8. log10^162 I need to see all of the steps. Thanks

*May 12, 2011*

**Algebra 2**

I need a paragraph explaining the relationship between the zeros of the graph of the function and the solutions to the equation.

*April 28, 2011*

**Math**

2x^2+x-6>0 A=2 B=1 C=-6 Multiply A and C together A=2, C=-6, 2x(-6)=-12 Find factors of -12 that add up to give you a positive value of 1, B We figure out that factors of -12 that add up to give us 1 are 4 and -3 We rewrite our equation as: 2x^2+(4x-3x)-6>0 We can group ...

*April 27, 2011*

**Algebra 2**

A rectangular box is to be x in. by (12-x) in by (15-x) in. What is the greatest volume possible? What will the dimensions of the box be? I need all of the steps to get to the answer.

*April 22, 2011*

**Algebra 2**

You want to make a rectangular box that is x cm high, (x+5) cm. long and (10-x) cm. wide. What is the greatest volume possible? What will the dimensions of the box be? I need all of the steps to get to the answer.

*April 22, 2011*

**Algebra 2**

A farmer wants to enclose 2 adjacent rectangular regions next to a river. No fencing will be used next to the river. 60 meters of fencing will be used. What is the area of the largest region that can be enclosed. I need all of the steps to get to the answer.

*April 22, 2011*

**Algebra 2**

One hundred feet of fencing is available to make a rectangular dog pen against an existing wall. What are the dimensions of the pen that will yield the maximum area? I need all of the steps to get to the answer.

*April 22, 2011*

**Algebra 2**

A rain gutter is made by bending up the edges of a piece of metal of width 36 in. If the length of the piece of metal is 24 in., find the height that maximizes the volume. I need all of the steps to get to the answer.

*April 22, 2011*

**Algebra 2**

A rectangular field is to be enclosed by 300 feet of fencing. Find the dimensions of the enclosure that maximizes the area.

*April 22, 2011*

**Statistics**

A histogram can also help detect any unusual observations (outliers), ... We can compare more than one data set by the use of multiple stem and leaf plots. ... In cases where we have more than one data set to analyse, a 5-number summary

*April 19, 2011*

**MATH please help**

A sweater that was originally $27.95 is on sale for 19.99. Estimate the percent discount

*April 19, 2011*

**MATH please help**

A sweater that was

*April 19, 2011*

**Math**

State the area, A, of the bottom of the box in terms of x. length = 8.5 inches width = 11 inches

*April 18, 2011*

**Math**

The loan arranger

*April 13, 2011*

**physics**

Two rivers, A and B, flow together to form a larger river C. If the flux (volume rate of flow) of river A is 300 gallons per second and the flux of river B is 200 gallons per second, what is the flux of river C? 1)200g/s 2)250g/s 3)300g/s 4)500g/s

*March 31, 2011*

**Calculus B**

Find lim as x goes to 0 of (xsinx)/(1-cosx)

*March 28, 2011*

**Calculus B**

Prove: lim as x goes to 0+ of x^(sinx)=1

*March 28, 2011*

**Calculus B**

The Antiderivative of: (2x+3)/((x^3)+3x) This one is devinately integration by partial fractions but im not sure what i am doing wrong. PLEASE HELP.

*March 28, 2011*

**Calculus B**

The Antiderivative of: x(arctanx)dx It's clearly integration by parts with u=arctanx and dv=x, but after that I go down hill. HELP!

*March 28, 2011*

**math**

The answer is 22 The sum of the digits is 4. It is less than 100 Half of that number is 11, which is odd

*March 28, 2011*

**math**

Drwls - totally confused me on how this problem is done. Can someone else help to solve this problem? If two numbers are relatively prime, what is their LCM? Explain the reasoning and give 2 examples supporting the answer.

*March 26, 2011*

**math**

If two numbers are relatively prime, what is their LCM? Explain the reasoning and give 2 examples supporting the answer.

*March 26, 2011*

**Math**

A ship in calm seas steamed 13 km in one direction, turned and steamed 13 km in another direction, and then returned 12 km back to its original position. The captain then plotted the ship’s course on a nautical chart. She asked her first officer to look at the chart and ...

*March 22, 2011*

**Quadratic Equation**

The dimensions of a rectangle are such that its length is 3 in. more than its width. If the length were doubled and if the width were decreased by 1in., the area would be increased by 150 in.^2. What are the length and width of the rectangle?

*March 15, 2011*

**fractions**

if there are 648 meters vertically and 4/8 by 6 meters horizontally. how do i solve the problem?

*March 14, 2011*

**physics**

A loaded truck can accelerate at 6.4 m/s^2. It loses its load so that it is only 0.9 as massive. By what factor must the acceleration change for the same driving force?

*March 2, 2011*

**physics**

A loaded truck can accelerate at 6.4 m/s^2. It loses its load so that it is only 0.9 as massive. By what factor must the acceleration change for the same driving force?

*March 2, 2011*

**Calculus B**

The antiderivative of ln(2x+1) using integration by parts.

*February 28, 2011*

**math**

tell how many minute have passed and how many degree the minute hand has roteted from 3.33 to 3.45 -----minute pass the minute gand rotates ------degree

*February 23, 2011*

**Physics**

A box of mass m1 = 10.0 kg rests on a smooth, horizontal floor next to a box of mass m2 = 5.0kg. You push on the box 1 with a horizontal force of F = 31.8 N: a.)What net force on box 2 will cause it to have this acceleration? b.)What the force on box 1 on box 2? (In other ...

*February 20, 2011*

**physics**

Thanks for your help but the answers were wrong some how. On my homework it says to answer in Newtons. I know F=ma but w/ these stipulations i don't know how to solve it

*February 20, 2011*

**physics**

3 part question: A 52-kg girl weighs herself by standing on a scale in an elevator. What does the scale read when: a.)the elevator is accelerating downward at 2.5 m/s2? b.)the elevator is accelerating upward at 2.5 m/s2? c.)the elevator is ascending at 10 m/s but its speed is ...

*February 20, 2011*

**7th grade math**

LxWxH=V (8)*(4.6)*H= 88 36.8H = 88 H=2.4m

*February 20, 2011*

**Physics**

2 part question, only looking for part b. a) A driver wearing a seat beat decelerates at roughly the same rate as the car it self. Since many modern cars have a "crumble zone" built into the front of the car, let us assume that the car decelerates of a distance of 1....

*February 20, 2011*

**physics**

A bullet of mass 0.0019 kg moving at 487 m/s embeds itself in a large fixed piece of wood and travels 0.55 m before coming to rest. Assume that the deceleration of the bullet is constant. What force is exerted by the wood on the bullet?

*February 20, 2011*

**math**

lynn is 6 years older than Linda.The sum of their ages is 36. What is Linda's age.

*February 15, 2011*

**physics**

A combination of .403 kg of water at 45.1 C, .471 kg of aluminum at 41.1 C, and .307 kg of copper at 50.4 C is mixed in an insulated container and allowed to come to thermal equilibrium. Determine the final temperature of the mixture. Neglect any energy transfer to or from the...

*February 13, 2011*

**Math**

I have 4 tops,6 bottoms and 3 different pairs of sandles. How many combinations can make?

*February 6, 2011*

**American Government**

All of the following statements correctly describe the typical independent agency except: A. it has a narrower area of responsibility than cabinet departments. B. it is divided into a number of smaller operating units. c. its employees are mostly hired through the civil ...

*February 6, 2011*

**Geometry**

A = 45 radical 39

*January 27, 2011*

**Geometry**

The diagonal of a rectangle is 24 inches. The width is 15 inches. What is the area?

*January 27, 2011*

**Geometry**

12 pi radical 2 = C

*January 27, 2011*

**Geometry**

The area of a circle is 72pi. What is the circumference?

*January 27, 2011*

**us history**

One of the significant changes in atmosphere in Jefferson's administration was: the number of common people involved in government the closing of the Bank of the United States the widespread dismissal of Federalist officeholders the reinstatement of the Alien and Sedition ...

*January 21, 2011*

**5th grade math**

could u please show me an example

*January 12, 2011*

**Algebra 2**

f(x)=2.25 plus 2.75x

*January 9, 2011*

**Algebra**

y-2=.5(x-4)

*January 5, 2011*

**Physics**

A weight W is now placed on the block and 7.7 N is needed to push them both at constant velocity. What is the weight W of the block? Answer in units of N.

*January 5, 2011*

**Finance**

I've solved every problem in my assignment except for two. I only need one more to get the grade I'd like/need. I've been doing this one over and over, consistently getting wrong answers. I know the process of how to do it generally, but I feel I make mistakes in ...

*January 2, 2011*

**Elements and Compounds**

A formula contains numbers below the elements called__________________? The subscripts in chemical formulas tell us the _______________of particles that combine in a compound.

*December 14, 2010*

**science**

Scientists write symbols for compounds called _______?

*December 14, 2010*

**trig**

Hank rides 2 hours total on a bicycle trip into the country and back. He rode out at the rate of 20 mph and returned at the rate of 24 mph. How far into the country did Hank ride

*December 12, 2010*

**Calc**

Find an equation of the tangent line to the graph of the function at the given point. 1 + ln xy = e^(x-y), (1,1)

*December 6, 2010*

**physics**

In a tennis serve, a 7.9×10−2 ball can be accelerated from rest to 33 over a distance of 0.80. Find the magnitude of the average force exerted by the racket on the ball during the serve.

*December 6, 2010*

**Calc**

Show that f is strictly monotonic on the given interval and therefore has an inverse function on that interval. f(x) = abs. val. (x + 2), [-2, infinity)

*December 6, 2010*

**Physics**

Two thin rectangular sheets (0.29 m 0.40 m) are identical. In the first sheet the axis of rotation lies along the 0.29-m side, and in the second it lies along the 0.40-m side. The same torque is applied to each sheet. The first sheet, starting from rest, reaches its final ...

*December 5, 2010*

**Calc**

Find y' for y = x/(x+y)

*December 3, 2010*