Saturday

November 22, 2014

November 22, 2014

Total # Posts: 514

**Algebra 2**

thank you
*November 21, 2014*

**Algebra 2**

is the correct answer is x=-1 and y=-3
*November 21, 2014*

**Algebra 2**

Solving Quadratic System y=4x+1 2x-y+1 Please show work!!!
*November 21, 2014*

**Algebra 2**

I corrected your answer :D Thank you
*November 21, 2014*

**Algebra 2**

where did you get x+1=4 from
*November 21, 2014*

**Algebra 2**

Solving Quadratic Systems x+2y=4 3x-y=5 Please show work!!!
*November 21, 2014*

**Algebra 2**

More About Complex Numbers Multiply (4+3i)(1-i) Please show work i need help
*November 18, 2014*

**Algebra 2**

More About Complex Numbers Find the reciprocal. -1-i 2i
*November 18, 2014*

**Algebra 2**

More About Complex Numbers Find the conjugate of each number. 1.)squ root of 3-7/8i 2.) 2-mi 3.) 6 Please show work I need help
*November 18, 2014*

**Algebra 2**

More About Complex Numbers Multiply (4+3i)(1-i) Please show work i need help
*November 18, 2014*

**Algebra 2**

More About Complex Numbers: Solve x and y 4x+5y+13i=7+(6x+5y)i Please show work because I had a hard time finding the answer
*November 18, 2014*

**Chemistry**

A sample of oxygen at room temperature occupies a volume of 5.00x102 mL at 1.50 atm pressure. What pressure (in atm) must be applied to compress the gas to a volume of only 1.50x102 mL? Assume the temperature is constant.
*November 18, 2014*

**Law Studies**

What rights does the Bill of Rights Protect?
*November 13, 2014*

**Algebra 2**

Thank You Reiny
*November 13, 2014*

**Algebra 2**

I got that part but I just want to compare my answer. i got 16/3 and 8/3
*November 13, 2014*

**Algebra 2**

Complete the Square Solve each equation x^2+8x+16=16/9 Show work i want to learn!!!
*November 13, 2014*

**Algebra 2**

What are you talking about?
*November 9, 2014*

**Algebra 2**

that's for another problem show me how to do this one
*November 9, 2014*

**Algebra 2**

Thank you
*November 9, 2014*

**Algebra 2**

Solving By Factoring 2x(2x+1)=2 Please show work!!!
*November 9, 2014*

**Algebra 2**

Solving By Factoring (x-8)(x-5)=x Please show work!!!!
*November 8, 2014*

**Algebra 2**

solve each inequality or equation. Graph the solution. 5(absolute value 3w+2)-3>7 *Please show me the work
*October 15, 2014*

**Algebra 2**

Thank you so much
*October 11, 2014*

**Algebra 2**

solve each system of equation 3x+5y+2z=4 2x-2y+3z=-4 x+y+z=0 *could you show work because I want to learn how you got this answer
*October 11, 2014*

**Algebra 2**

Given a point (-2,5determine a point that satisfies the specified symmetry. 1. Origin (2,-5) 2. y-axis (2,5) 3. x-axis (-2,-5) 4. y=x ? Could you check if 1-3 is correct and could you help me on #4
*September 22, 2014*

**physics**

What force exists between a positive charge of 2.6 x 10-6 C and a negative charge of 4.2 x 10-5 C if they are separated by 8 cm?
*May 27, 2014*

**Social Psychology**

What attributes are inherent in persuasive messages?
*May 12, 2014*

**Strategies for Academic Success**

Sean is taking an online course in Psychology, and is about to take a quiz over the lesson, “The Experimental Method”. He did poorly on his homework assignment and is struggling to remember the lesson content. What should Sean do before he takes the quiz over this ...
*May 2, 2014*

** Strategies for Academic Success**

What is "stage one" of a study session? Why is it so important?
*May 2, 2014*

**Strategies for Academic Success**

What is "stage one" of a study session? Why is it so important?
*May 2, 2014*

**Strategies for Academic Success**

thank you very much
*May 2, 2014*

**Strategies for Academic Success**

What skill is "critical" to success in online learning?
*May 2, 2014*

**math**

The sphere has surface area 2058 cm2. Its radius, to the nearest tenth, equals
*May 1, 2014*

**math**

A) About 12 times that of the earth B) About 150 times that of the earth C) About 600 times that of the earth D) About 1300 times that of the earth
*May 1, 2014*

**math**

The radius of the earth is approximately 3950 miles. The radius of Jupiter is approximately 44,400 miles. Since the radius of Jupiter is more than 11 times that of the earth, which comes closest to the volume of Jupiter ?
*May 1, 2014*

**Buying A Car**

the answer is D because A bumper to bumper warranty means that whatever goes wrong (unless caused by an accident or other abuse of the vehicle) the warranty will cover the repair. A power train warranty only covers the engine, transmission, and drive line. Some only cover ...
*May 1, 2014*

**Geometry**

im not in connections academy I can help you with lesson 5 unit 4 geometry quiz just sow me the problem
*May 1, 2014*

**science**

PLEASE HELP MRS SUE
*April 30, 2014*

**science **

2.Imagine two artificial satellites orbiting Earth at the same distance. One satellite has a greater mass than the other one. Which of the following would be true about their motion? (1 point) The satellite with the greater mass is being pulled toward Earth with ...
*April 30, 2014*

**Geometry**

Show that each conditional is dales by finding a counterexample. If an animal is a bird, then it is a penguin.
*April 29, 2014*

**Algebra**

Ramona divided his 35,000 inheritance between two investments, one paying 9% and the other 12% simple interest. is total annual income on the interest alone was 3,000. How much did he invest at 9%?
*April 21, 2014*

**Geometry**

a hemispherical bowl with radius 25cm contains water whose depth is 10cm. what is the water's surface area
*March 31, 2014*

**Geometry**

thank very much Steve
*March 26, 2014*

**Geometry**

I need help in this question!!! CD has an endpoint at (2,-1) and a midpoint at (8,3). which measure is closest to the length of CD? A. 20.4 units B. 8.4 units C. 14.4 units D. 11.7 units
*March 26, 2014*

**Geometry**

thanks Steve
*March 21, 2014*

**Geometry**

do I use the distance formula
*March 21, 2014*

**Geometry**

CD has an endpoint at (2,-1)and a midpoint at (8,3). which measure is closest to the length of CD?
*March 21, 2014*

**introductory to physics**

A pendulum bob is released from some initial height such that the speed of the bob at the bottom of the swing is 4.0 m/s. The acceleration of gravity is 9.81 m/s 2 . What is the initial height of the bob? Answer in units of m
*March 4, 2014*

**Accounting**

Suppose you want to have $5,000 saved at the end of five years. The bank will pay 2% interest on your money. How much would you have to deposit today to have the $5,000 you want at the end of five years?
*February 4, 2014*

**Math**

Mariko has an 80 inches = 1 inch scale- drawing of the floor of her house. On the floor plan, the dimension of her rectangular living room are 1 7/8 inches by 2 1/2 inches. What is the area of her real living room in square feet?
*December 27, 2013*

**Math**

A scale drawing of a rectangular field is 10 cm by 8.5 cm. if the actual field has dimensions of 40 meters by 34 meters, which could be the scale used for the drawing?
*December 27, 2013*

**Chemistry**

calculate the minimum concentration of ag+ ion that must be added to (or built up in) a 0.140 m Na2CrO4 solution in order to initiate a precipitation of silver chromate. The ksp of ag2cro4 is 1.2 × 10^-12.
*November 20, 2013*

**Physics**

1/q + 1/p = 1/f f=r/2 p=15.1 f= 8.55/2= 4.275 1/q= 1/f+1/p= 1/4.275 + 1/15.1 = 19.375/64.5525 take inverse to get q q= 3.33
*November 11, 2013*

**Physics**

An object 6.70 cm high is placed 15.1 cm in front of a convex mirror with radius of curvature of 8.55 cm. Where is the image formed?
*November 11, 2013*

**math**

3/4(-2x+3)+7x/2=11/4
*September 24, 2013*

**Math**

An elevator moves at a rate of -5.8 feet per second from a height of 300 feet above the ground. It takes 3 seconds for the elevator to make its first stop. How many feet above the ground is the elevator now?
*September 21, 2013*

**Math**

A builder wants to construct a cube-shaped diving pool with a water volume of 1800 cubic feet. . Approximate the edge length of the pool to the nearest foot
*September 19, 2013*

**speeches**

in conducting a personal interview,setting limits on what will be covered should occur?
*September 11, 2013*

**algebra**

B=1/3h(q+z) solve for q
*June 4, 2013*

**math**

its $51.58
*May 30, 2013*

**photo**

I have to write my Artist Statement on obsessions I am am kind of lost on what to write about.
*May 13, 2013*

**CHEMISTRY**

The two half-reactions for the LeClanche dry cell battery are shown below. Describe the direction of spontaneous electron flow in this electrochemical cell. Zn(s) ---> Zn2+(aq) + 2e- 2NH4+(aq) + 2e- ---> 2NH3(g) + H2(g)
*May 10, 2013*

**math**

Thank yu so much!
*April 1, 2013*

**math**

Please simplify and explain to me how to do each of these. Greatly appreciated. x = multiply sign (not a variable) a)((9)^(1/2) (4)^2) / 24 b) (16)(2)^(x+2) The x here is a variable, not multiplication sign) c) (3)^(-8)/ (3)^(-6) (3)^(-5) d) ((4)^(-2) + (2)^(-4))^(-1) Thank ...
*April 1, 2013*

**math**

ur amazing !
*March 31, 2013*

**math**

With reference to the right triangle,, explain why the expressions y = sin x and y = cos ((pi/2) - (x)) give the same results for all the values of x. Discuss whether or not this same relationship exists for angles greater than (pi/2).
*March 31, 2013*

**math**

With reference to the right triangle,, explain why the expressions y = sin x and y = cos ((pi/2) - (x)) give the same results for all the values of x. Discuss whether or not this same relationship exists for angles greater than (pi/2).
*March 31, 2013*

**political science**

what is ''reasonable search''?
*March 18, 2013*

**math**

identify all real roots of x^3-9x^2+16x-8=0
*March 7, 2013*

**Chemistry**

Using the balanced equation of: HCl+NaOH-->H20+NaCl, how many moles of HCl could be neutralized with 13.2 mL of 3.00 M NaOH?
*February 26, 2013*

**algebra**

explain how you solve 11x=3y=12 using 3x=9 as subsitution
*February 14, 2013*

**physics**

In a specific region of interstellar space the atomic composition of gaseous matter is 89.1% atomic hydrogen and 10.9% helium, the temperature is 27K and the pressure is 2.58x10^-15Pa. What is the density of matter in this region? What is the particle density?
*February 13, 2013*

**math**

If the digits of a number may be any one of 0 through 9 (except the first digit cannot be zero), and the system of alternating signs of coefficients is used to create a polynomial, what is the least number m of real zeros the polynomial can have? What is the greatest number M ...
*February 10, 2013*

**math**

If the digits of a number may be any one of 0 through 9 (except the first digit cannot be zero), and the system of alternating signs of coefficients is used to create a polynomial, what is the least number m of real zeros the polynomial can have? What is the greatest number M ...
*February 10, 2013*

**math **

How do you evaluate i to large powers such as i^1992, i^1993, and i^2000 without a calculator?
*February 8, 2013*

**math**

What is the general pattern when you divide each polynomial (x^3-Y^3, x^5-y^5, x^7-y^7, x^9-y^9) by x-y?
*February 5, 2013*

**math **

write y= -.5(x+6)(x+3)(x-3) in standard form.
*February 3, 2013*

**math**

Thks Ms. Sue the answer for the second part is 6 inches.
*January 27, 2013*

**math**

A map indicates that two cities are 160 miles apart. The scale of the map is 1/2 inch= 20 miles. 1. how many inches apart are the cities on the map. 2. Another map show the two cities has a scale of 3/4 inch =20 miles. How many inches apart are the two cities in the map?
*January 27, 2013*

**math**

It cost $15.00 to buy 150 sheets of brand A's paper. it cost $19.25 to buy 175 sheets of brand B's paper. Which brand has the better value and by how much?
*January 27, 2013*

**math**

thks
*January 27, 2013*

**math**

what is the relative error of a distance given as 550cm plus or minus 24.2cm?
*January 27, 2013*

**Physics**

A spring has a constant of 2.4 x 10^2 n/m. What force does it take to stretchmit .8m? How much PE is stored in the spring? Make a graph of the constant from .1 to 1.0 meters.
*January 6, 2013*

**Physics**

Wen an oxygen nucleus at rest is struck by a neutron moving at a speed of 1.2 x 10^8 m/s in a head on elastic collision crazy things happen. If the oxygen nucoeus is 8 times the mass if the neutrin, what us the velocity of each particle after the collision?
*January 6, 2013*

**Physics**

If a pendulum bob has a mass of 25 kg and is set in motion from a point .2m from the lowest point swing, what is the KE at the lowest point in the pendulums motion?
*January 6, 2013*

**business statistics**

Assume that X is a binomial random variable with n = 5 and p = 0.35. Calculate the following probabilities?
*November 14, 2012*

**business**

what is Australia's finance sector competitive issues?
*November 5, 2012*

**Math**

Sarah is following a recipe that calls for 1 1/4 cups of flour. About how many cup of flour would she need to make 4/9 batch of the recipe?
*November 1, 2012*

**Calculus**

Find the equation of the tangent plane at the given point. 1)x^2+y^2-z=1 at the point (1,3,9) 2)x^2*y^2+z-40=0 at x=2, y=3 3) x^2+ln(xy)+z=6 at point (4,0.25,2) For the first one I got the partial fraction in terms of x, y and z and my final answer was -2x+6y-z+2. I don't ...
*October 4, 2012*

**elementary and intermediate algebra**

how to write the equation for the following problem: The Post office charges extra for packages that must be processed by hand. Find an equation for the nonmachinable cost n in terms of the machinable cost m. 1 pound is $ 2.74( machinable cost, nonmachinable cost is $ 4.95
*September 27, 2012*

**Physics**

D= ViT + 1/2aT^2 D= (60)4.3+4.9(4.3^2) D= 348.6 M
*September 16, 2012*

**College physics**

y=r sin theta y= 40*sin315 y=-28.3 units x=r cos theta x= 40*cos315 x=28.3 units
*September 16, 2012*

**college biology**

LDL is considered bad because it has a lower density, or weight per mass, and therefore tends to settle and accumulate along with excess cholesterol in the blood. HDL sweeps through to keep everything moving along and prevent clogging.
*September 11, 2012*

**math**

How do I do this calculation on a calculator... A=$4000(1+.035/12)raise 12*10
*August 13, 2012*

**health**

Lol me to... Thanks guys :)
*August 11, 2012*

**physics**

A bicycle has wheels of radius 0.3 m. Each wheel has a rotational inertia of 0.088 kg× m2 about its axle. The total mass of the bicycle including the wheels and the rider is 79 kg. When coasting at constant speed, what fraction of the total kinetic energy of the bicycle...
*July 10, 2012*

**physics**

An oil drop is stationary within an electric field of 490 V/m that is set up between two parallel plates. If the volume of the oil drop is 4 X 10 (-19) m3, how many excess electrons does it carry? (I'll give ya'll just one hint: the fundamental unit of charge e = 1.6 X...
*June 29, 2012*

**Math**

Suppose that you want to purchase a home for $450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 20% down. Assume that the monthly cost to finance $1,000 is $6.00. What are the monthly payments
*April 24, 2012*

**Chemistry**

A 125-g piece of metal is heated to 288 degrees celsius and dropped into 85.0 g of water at 26 degrees celsius. If the final temperature of water and metal is 58 degrees celsius, what is the specific heat of the metal?
*April 16, 2012*

**chemistry**

A gas sample in a sealed vial originally at 0.6 atm and 300 K, was heated at 450 K. What other property of the gas has changed? What is the value of this property after heating?
*March 30, 2012*

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