Wednesday

January 28, 2015

January 28, 2015

Total # Posts: 63

**math**

eliza has a piece of string that is 130 cm long how much will she have to cut to make 1 meter
*January 14, 2015*

**math**

A board is 54 inches long. Mate cuts the board into 6 equal pieces. How long is each piece
*December 29, 2014*

**Math**

1. Determine the equation of the right bisector of the line segment E(2, 6) and F(4, -2). Draw the diagram. 2. Given three points D(2, 5) E(-2, -3) and F(4, -6) determine whether or not the line through D and E is perpendicular to the line through E and F. 3. A triangle is ...
*June 30, 2014*

**English**

An aberration is a noun that means something that is not normal or is very typical at all.
*May 4, 2014*

**College Algebra**

A farmer needs to build a rectangular corral for his animals. He has 200 yards of fencing available. He needs to make 4 pens. What is the largest corral he can create? (Remember the pens also count as a part of the perimeter, not just the outside of the corral)
*February 26, 2014*

**MATH! continued.......**

if you could you please answer a from my previous question that would be greatly appreciated
*August 7, 2013*

**MATH!**

What initial investment would I have to make at 6% per year compounded semi-annually in order to end up with $1,000,000 in 29 years if I didn't make any monthly contributions. a) estimate using the rule of 72. Explain how you came up with your estimate. b) calculate exactly.
*August 6, 2013*

**math**

so if i have monthly payments i would multiply the monthly payment by 12 then add it to the down payment. correct?
*August 6, 2013*

**math**

How do I calculate how much in total (including the down payment) I will have paid for this condo when I know the total amount, the down payment, the mortgage, and the monthly payment?
*August 6, 2013*

**chemistry **

At 25 °C only 0.0390 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?
*April 25, 2013*

**chemistry**

A 3.24-L flask is filled with propane gas (C3H8), at 1.00 atm and -13.5°C. What is the mass of the propane in the flask?
*February 14, 2013*

**Calculus**

How do I answer these questions. Please show work. The answers are through the link as a png image. THanks! h t t p : //goo.gl/NNf9A
*February 8, 2013*

**science**

compare the formation processes of igneous, sedimentary and metamorphic rocks. in general which process can be the most direct, requiring the fewest number of steps? which can be teh most complex? explain
*February 5, 2013*

**Calculus**

The function f(x) is defined as f(x) = -2(x+2)(x-1)^2 = -2(x^3 -3x + 2) on the open interval (-3,3). 1. Determine the x-coordinate of the absolute minimum of f(x) in the open interval (-3,3). Justify your answer. 2. Find all values of x for which f(x) is concave down. Justify ...
*January 5, 2013*

**Calculus**

Two particles move along the x -axis. For 0 is less than or equal to t is less than or equal to 6, the position of particle P at time t is given by p(t)=2cos((pi/4)t), while the position of particle R at time t is given by r(t)=t^3 -6t^2 +9t+3. 1. For 0 is less than or equal ...
*December 19, 2012*

**Calculus**

Two particles move along the x -axis. For 0 is less than or equal to t is less than or equal to 6, the position of particle P at time t is given by p(t)=2cos((pi/4)t), while the position of particle R at time t is given by r(t)=t^3 -6t^2 +9t+3. 1. For 0 is less than or equal ...
*December 19, 2012*

**Calculus**

Two particles move along the x -axis. For 0 is less than or equal to t is less than or equal to 6, the position of particle P at time t is given by p(t)=2cos((pi/4)t), while the position of particle R at time t is given by r(t)=t^3 -6t^2 +9t+3. 1. For 0 is less than or equal ...
*December 19, 2012*

**Calculus**

Let f be a twice-differentiable function defined on the interval -1.2 less than or equal to x less than or equal to 3.2 with f(1)=2. The graph of f', the derivative of f, is shown on the right. The graph of f' crosses the x-axis at x=-1 and x=3 and has a horizontal ...
*December 19, 2012*

**Calculus c**

Let f be a twice-differentiable function defined on the interval -1.2 less than or equal to x less than or equal to 3.2 with f(1)=2. The graph of f', the derivative of f, is shown on the right. The graph of f' crosses the x-axis at x=-1 and x=3 and has a horizontal ...
*December 19, 2012*

**Calculus**

A particle moves along the x-axis with the velocity given by v(t)=3t/(1+t^2) for t >or equal to 0. When t=0, the particle is at the point (4,0). 1. Determine the maximum velocity for the particle. Justify your answer. 2. Determine the position of the particle at any time t...
*December 19, 2012*

**Arrays and an Expanded Algortim**

What is 26 x 22
*December 4, 2012*

**math**

how can you determine whether a sum of several numbers such as 13plus45plus24plus17 is even or odd?
*September 9, 2012*

**physics**

a) w=2pi/3.14x10^7 =2.0010x10^-7 rad/s b) v=rw =(1.51x10^11)(2.0010x10^-7) =3.0215x10^4 m/s c) a=v^2/r =(3.0215x10^4)^2/(1.51x10^11) =6.0461x10^-3 m/s^2 -directed toward the center of the orbit
*May 25, 2012*

**chemistry**

At 25 °C only 0.0390 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the Ksp of the salt at 25 °C?
*February 13, 2012*

**Chemistry**

ln(P1/P2)={-ÄHvap[(1/T1)-(1/T2)]}/R
*January 25, 2012*

**Science**

Each gallon of fuel a car uses creates 20 lb of carbon dioxide. A car with good gas mileage means you can drive it farther and longer on each gallon of gas, makeing you burn less fuel,whitch causes less carbon dioxide to be released into the atmosphere.
*January 5, 2012*

**Math**

decimals ,rounding ,dividing by 2 digit numbers
*September 4, 2011*

**statistics**

SOMEONE ANSWER
*May 16, 2011*

**childcare**

The observation that children with down syndrome may alternate between periods of gain and functioning and periods of little or no advance is the? A functioning difference hypothesis. B variance hypothesis C.variance observation d.slowing and stablility hypothesis A?
*May 7, 2011*

**kinematics**

A tennis ball is hit with a resultant velocity of 70 m/s^-1 at 20 degrees. What are the vertical and horizontal velocities?
*April 17, 2011*

**Math**

Thank you so much!!
*December 29, 2010*

**Math**

How do I write 5/16ths as a decimal??
*December 29, 2010*

**Math**

If Kate sang a note every 2 seconds and Gaby sang a note every 6 seconds and Laney sang a note every 16 seconds, how often would they all sing at the same time?
*December 29, 2010*

**Math**

Thanks!!
*December 29, 2010*

**Math**

How would 19/3 be a mixed number?
*December 29, 2010*

**calculus**

A 6-foot man walks away from a 16-foot lamppost at a speed of 5 ft/sec. Find exactly the rate at which his shadow is increasing in length.
*December 11, 2010*

**physics**

The displacement from the equilibrium caused by a wave on a string is given by: y(x, t) = (-0.00200 m) sin [40 m-1)x – (800 s-1)t]. What are the number of waves in 1 m
*December 7, 2010*

**physics**

A car traveling 72.0 km/h along a straight, level road is brought uniformly to a stop in a distance of 40.0 m. If the car weighs 8.8 x 103 N, what is the braking force?
*December 7, 2010*

**physics**

A car traveling 72.0 km/h along a straight, level road is brought uniformly to a stop in a distance of 40.0 m. If the car weighs 8.8 x 103 N, what is the braking force?
*December 7, 2010*

**physics**

A source of sound (1200 Hz) emits uniformly in all directions. An observer 2.99 m from the source measures a sound level of 41.1 dB. Calculate the average power output of the source.
*December 6, 2010*

**physics**

A source of sound (1200 Hz) emits uniformly in all directions. An observer 2.99 m from the source measures a sound level of 41.1 dB. Calculate the average power output of the source.
*December 6, 2010*

**Physics**

A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A passenger feels the seat of the car pushing upward on her with a force equal to six times her weight as she goes through the dip. If r = 20.0 m, how fast is the roller coaster ...
*October 24, 2010*

**Physics**

A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 32 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 140 m), the block swings toward the outside of the ...
*October 23, 2010*

**English**

Why is it important to discuss the author of a book and the background of the author to students?
*September 19, 2010*

**Physics**

A bowling ball weighing 71.2 is attached to the ceiling by a 3.50 rope. The ball is pulled to one side and released; it then swings back and forth like a pendulum. As the rope swings through its lowest point, the speed of the bowling ball is measured at 4.20. 1)At that instant...
*June 27, 2010*

**Geometry**

4x+1+2x+3+2x=44
*January 20, 2010*

**4th grade**

5*3=15
*November 19, 2009*

**chemistry**

What number of electrons fit into energy levels higher than the third level?
*November 9, 2009*

**SOCIAL STUDIES**

HOW DOES THE WIND EFFECT THE CLIMATE AND HOW DOES WATER EFFECT THE CLIMATE
*August 11, 2009*

**Math/Algebra**

Thanks so much for your help
*March 22, 2009*

**Math/Algebra**

Sorry I have a mistake where it says 2x on the left saide and in side the square, square is supposed to be rectangle.
*March 22, 2009*

**Math/Algebra**

Could someone please help me with this problem. I posted it yesterday but the teacher who tried to help me didn't know what I was fully talking about and I hope you can. Directions: Find the area of each shaded region in simplest form. (Imagine a medium rectangle that has ...
*March 22, 2009*

**Reiny**

Do understand what I mean now?
*March 21, 2009*

**Math**

You know how when you have a right angle in the corner... well that's what the box that has 3 on the top and 2 on the left side is.
*March 21, 2009*

**Math**

I need help with this problem. (Just imagine a small square with 5x-1 at the top of the square, 2x on the left side of the square and in the right hand corner of the square there is a box on the top is a 3 and on the left side is a 2.) You have to figure it out the area of ...
*March 21, 2009*

**Math**

I mean -3x
*March 20, 2009*

**Math**

Is the answer -4x
*March 20, 2009*

**Math**

I need help with this problem. Directions: Write each equation in slope interccept form x+y=-4
*March 20, 2009*

**Math/Algebra**

Can you please help me with this question. Use a model to find (a+b+c)^2
*March 20, 2009*

**6th grade**

desalinatinwatter?
*January 12, 2009*

**Geography**

what does irrigation and desalinating water?
*January 12, 2009*

**algebra**

Solve each formula for the indicated variable. S=2pi symbolr squared+pi symbolrh
*July 30, 2008*

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