Sunday

October 4, 2015
Total # Posts: 191

**Algebra **

A type of plant is introduced into an ecosystem and quickly begins to take over. A scientist counts the number of plants after m months and develops the equation p(m)=19.3(1.089) raised to m, to model the situation. Most recently, the scientist counted 138 plants. Assuming ...
*September 23, 2015*

**Algebra **

Calvin deposits $400 in a savings account that accrues 5% interest compounded monthly. After c years, Calvin has $658.80. Makayla deposits $300 in a different savings account that accrues 6% interest compounded quarterly. After m years, Makayla has $613.04. What is the ...
*September 23, 2015*

**Algebra **

An equation for the depreciation of a car is given by y = A(1 – r)t , where y = current value of the car, A = original cost, r = rate of depreciation, and t = time, in years. The value of a car is half what it originally cost. The rate of depreciation is 10%. ...
*September 23, 2015*

**Algebra **

The general equation for depreciation is given by y = A(1 – r)t, where y = current value, A = original cost, r = rate of depreciation, and t = time, in years. A car was purchased 6 years ago for $25,000. If the annual depreciation rate is 11%, which equation can be used ...
*September 23, 2015*

**Math Grade 5**

The Eatery Restaurant has 200 tables. On a recent evening, there were reservations for 1/10 of the tables. How many tables were reserved?
*September 16, 2015*

**Physics**

A pilot flying low and slow drops a weight; it takes 2.8 s to hit the ground, during which it travels a horizontal distance of 100 m . 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? How far does it ...
*September 11, 2015*

**Math**

14 2 7 3 9=10 insert symbols to make it work 9*2 11 8 4 1=60
*September 11, 2015*

**Socials**

Ok thank you! I just finished my essay, but I will take a look and maybe add some on to what I have now. I would post it here for you to proofread, but I don't wish to publish my work online.
*May 5, 2015*

**Socials**

How did the building of the transcontinental railway benefit the country? I know that First Nations were kicked off their farmland to make way for the building of the railway and for settlers(why would settlers need the land?). Why was the railway so important and does it some...
*May 5, 2015*

**math**

The length of a rectangle is 3 m more than double the width, and the area of the rectangle is 54 m^2. Find the dimensions of the rectangle.
*May 5, 2015*

**accounting**

rigoberto invests 8,000 at 6% interest, compound semiannually for 1 year
*April 3, 2015*

**accounting**

rose wants to have 7,500 in 18 years how much rose should invest now at 8% interest
*April 3, 2015*

**chemistry **

What volume of oxygen(in Liters) at 25 degrees C and 1.05 atm is needed to completely combust 2.65L of methane, measured at STP
*March 30, 2015*

**Maths**

How do you find the "average of the ends"? What does that mean and how do you get -1?
*March 22, 2015*

**Maths**

1. In the xy-coordinate plane, point A is the midpoint of the segment with endpoints (2,4) and (-4,-4). What is the distance from point A to the origin? I know how to find the distance between the two points- 10. But I don't know where to go from there. 2. The radius of ...
*March 22, 2015*

**earthquake engineering**

Actually I got the formula and found the answer. Now, I just need to know about the safety when ground's period is greater, equal and lower than the structure's period. Can we say that it is too dangerous if the periods are equal?
*March 20, 2015*

**earthquake engineering**

Thank you so much. I will check them out.
*March 20, 2015*

**earthquake engineering**

I cannot open the page through this link. Should I register or sth?
*March 20, 2015*

**earthquake engineering**

Hey everybody! I have a question I would like to share and ask you. We have a soil layer with medium gravel which has a depth of 38 m. We want to build a multi storey framed building safely with a fundamental period of 1.7 sec.Do you think it will be safe? Vs is given as 750 m...
*March 20, 2015*

**MATH**

A carpenter has a board that is 10 feet long. He wants to make 6 table legs that are all the same length. What is the longest each leg can be? Thanks
*December 15, 2014*

**research proposal**

Hey I'm doing my research proposal for graduation I have 2 questions Q1. What should it inude exactly? I mean the headlines/ content) Q2. For the literature review, after dining articles what should I summarize/use from them? (Introducton, methodology or what!) Thanks alot!
*December 2, 2014*

**History Help!!**

are you home schooled
*October 2, 2014*

**history**

what ideas is about dividing government into legislative judicial and executive branches
*September 16, 2014*

**Word Problem**

The length and width of a rectangle are to each other as 4 is to 3. A second rectangle are 4 units longer and 2 units wider than the first one, and has twice as great an area as the first. Find the dimensions of the first rectangle.
*June 13, 2014*

**Algebra**

OMG thank you so much for the thoroughness
*June 13, 2014*

**Algebra**

1/x+1/x+5+1/3x=1/2.25 Solve for x.
*June 13, 2014*

**Algebra**

There are three pipes in which a cistern can be filled. The second takes 5 hours longer than the first, the third three times as long as the first. If all are open the cistern can be filled in 2 and 1/4 hours. How long would it take each alone to fill the cistern?
*June 12, 2014*

**Math**

can you provide a check for the answers?
*June 1, 2014*

**Math**

A monument consists of two cubical blocks of granite, the smaller resting on the larger. The total height of the monument is 5 feet, and the area of the exposed surface is 61 square feet. Find the dimensions of the blocks. Help please>.< Thank you in advance!
*June 1, 2014*

**Math**

thank you!
*May 23, 2014*

**Math**

How would you check it?
*May 23, 2014*

**Math**

A confectioner perchased several boxes of candy for $6. He gave five boxes to his children, and sold the rest at 10 cents more per box than he had paid for them, and made a profit of 25% on his original cost. How much did a box of candy cost him?
*May 23, 2014*

**Simple Probability Question**

A small manufacturing company has rated 80% of its employees as satisfactory and 20% as unsatisfactory . Personnel records show that 75% of the satisfactory workers had previous work experience in the job they are now doing, while 30% of the unsatisfactory workers had no work ...
*May 13, 2014*

**Math**

For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was 5 cents, and the number of reserved seats sold was 1/25 of the number of unreserved seats sold.If, at a second game, the price of the reserved seats is to be ...
*May 9, 2014*

**Algebra**

A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat.
*May 9, 2014*

**Math**

1-)A passenger boat which travels 6 mph faster than a freighter required 3 days less time to make a trip of 2592 miles. Find the rate of the passenger boat. 2-)For the first of two basketball games the price of each reserved seat was $1.50,the price of each unreserved seat was...
*May 8, 2014*

**Help w/ Math PLS**

If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.
*May 7, 2014*

**Math**

If a, b, and c are three integers in geometric progression, prove that the number a^2+b^2+c^2 is exactly divisible by the number a+b+c.
*May 6, 2014*

**ALGEBRA**

Thank you so much!
*April 24, 2014*

**ALGEBRA**

perimeter = 24 feet triangle that have one side is b =? second side is b =? third side is b - 3 =? How to solve this problem?
*April 24, 2014*

**Math**

Choose the most specific term that will make the following statement true. Do not assume anything more than the information given. I am a ____ because my opposite sides are congruent and parallel. square rectangle parallelogram rhombus
*April 13, 2014*

**Tcc**

What are the magnitudes of (a) the angular velocity, (b) the radial acceleration, and (c) the tangential acceleration of a spaceship taking a circular turn of radius 3220 km at a speed of 29000 km/h?
*April 10, 2014*

**Math help!!!! Thanks in advance!!!!!!!!!!!**

they actually are the answer choices so.. go get yo life boo
*April 3, 2014*

**math**

How many faces, edges, and vertices does the solid figure have? image
*March 21, 2014*

**Math**

Explain how you would convert a measurement given in ounces into pints
*February 10, 2014*

**Math 3rd grade**

2-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.
*February 3, 2014*

**Science help.**

number 1 is wrong its a fools
*January 4, 2014*

**Physics**

A mass M = 40.0 kg is suspended by a massless string from the ceiling of a van which is moving with constant acceleration a, as shown in the figure. If the string makes an angle theta = 21° with respect to the vertical, what is the acceleration a of the van? What is the ...
*December 24, 2013*

**Physics**

A cork gun contains a spring whose spring constant is 18.0 N/m. The spring is compressed by a distance ∆X = 6.0 cm and used to propel a cork of mass 7.66 g from the gun. Assuming the cork is released when the spring passes through its equilibrium position (Xeq), what is ...
*December 17, 2013*

**Physics**

A particle P travels with constant speed in a circle of radius 7.3 m and completes one revolution in 34.0 s (see Figure). The particle passes through O at t = 0 s. What is the magnitude of the average velocity during the interval from t = 11.9 s and t = 16.9 s. The answer here...
*December 17, 2013*

**Physics**

A particle P travels with constant speed in a circle of radius 7.3 m and completes one revolution in 34.0 s (see Figure). The particle passes through O at t = 0 s. What is the magnitude of the average velocity during the interval from t = 11.9 s and t = 16.9 s. The answer here...
*December 17, 2013*

**Physics**

A cork gun contains a spring whose spring constant is 18.0 N/m. The spring is compressed by a distance ∆X = 6.0 cm and used to propel a cork of mass 7.66 g from the gun. Assuming the cork is released when the spring passes through its equilibrium position (Xeq), what is ...
*December 17, 2013*

**Can anyone help me with this?**

all them answers were wrong got me an 1/3 on my test o retarted people these days
*December 4, 2013*

**Nutrition**

what are the principles of standing height and weight in the nutritional assessment? note: standing height and weight are from the anthropometric measurements i really need some help i couldn't find or understand what it actually wants so please some help.
*September 18, 2013*

**statistics**

How do you calculate the z-score for a package weighing 29.6 pounds ( round to 2 decimals)?
*June 14, 2013*

**math**

write the direct variation equation for the following:y varies directly with x and y=60 when x=10
*June 11, 2013*

**Combinations and Permutations, Steve and Ms. Sue☺**

hailee is right made 100% 10/10 thanks
*April 10, 2013*

**math **

If r = 12.5 and s = |−13|, which of the following inequalities is not true??? 1.r≠s 2.r< s 3.r≥s 4.r≤s
*March 20, 2013*

**chemistry**

the molar mass of NaOH is 40g/mol, how many grams ofNaOH are required to yield 0.65 mol?
*March 9, 2013*

**math**

oh you multiply?
*February 20, 2013*

**math**

No wait is it 18 miles?
*February 20, 2013*

**math**

he**
*February 20, 2013*

**math**

so she could go 40 miles in 2 hours because 120/3=40
*February 20, 2013*

**math**

I'm not getting it yet?
*February 20, 2013*

**math **

oliver can jog about 3 times as fast as he can walk. If his average walking rate is one mile in 20 minutes, about how far could he jog in 2 hours?
*February 20, 2013*

**Business calc**

A total revenue function is given by R(x) = 1000(x^2 - 0.1x)^1/2 , where R(x) is the total revenue, in thousands of dollars, from the sale of x items. Find the rate at which total revenue is changing when 20 items have been sold.
*February 19, 2013*

**Math**

$6 per can
*November 17, 2012*

**Chemistry**

Kinetic energy = 1/2 mv^2 where m is the mass of the particle and v is the velocity of the particle. A joule is the SI unit for energy and is kg.m^2/s^2. Find the energy in joules of a 56.7 g mass moving at the speed of 70. km. hr.
*November 5, 2012*

**CHEM HELP ANYONE ASAP**

Arrange the members of the following set of cations in order of increasing ionic radii: Sr2+ Ba2+ Rb+ K+ I understand that Sr2+ = 132 pm Ba2+ = 149 pm Rb+ = 166 pm K+ = 152 pm increasing ionic radii ....Sr2+ , Ba2+ , K+, Rb+ But the its not going in online as correct
*October 31, 2012*

**allied health**

I don't think its C. Its D
*June 2, 2012*

**mathmatics**

thank you
*May 15, 2012*

**mathmatics**

write an expression that represents the following: Eds salary is S dollars per week. His salary is tripled and he earns a $250 bonus. how much will he have in 13 weeks
*May 15, 2012*

**Math**

Tuesday:45 Thursday: 45 saturday:45 Sunday: 45 Then you add them all
*May 15, 2012*

**pre-calculus**

find all values of x in (o, Pi) that satify the given equation cos x/3=1/2
*April 3, 2012*

**pre-calculus**

Rewrite the expression so that it involves the sum or difference of only constants and sines and cosine to the 1st power (cos 5x)^2
*April 3, 2012*

**pre-calculus**

use a sum or difference formula to find the exact of the trigonometric function cos(-13pi/12)
*April 3, 2012*

**pre-calculus**

Rewrite the expression so that it involves the sum or difference of only constants and sines and cosine to the 1st power (sinx)^4
*April 3, 2012*

**Geometry**

Write a two column proof. Given: angle STV is congruent to angle TVU, angle STU is congruent to angle UVS. Prove: Angle SVT is congruent to angle UTV.
*February 25, 2012*

**math**

a rectangle has an area of 360 square .what .it is 20 centimeters long.what is its perimeter
*January 27, 2012*

**Physics**

A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the solenoid?
*October 6, 2011*

**Physics**

A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the solenoid?
*October 6, 2011*

**Physics**

A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the solenoid?
*October 6, 2011*

**Physics**

A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the solenoid?
*October 6, 2011*

**Physics**

A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the solenoid?
*October 6, 2011*

**3rd grade math**

31+7
*September 6, 2011*

**geometry**

A rectangular garden 10m * 18m . Find the area of a sidewalk that is 2m from the side of a garden ?
*June 21, 2011*

**geometry**

How many boxes that is 5" * 4" * 3" could be placed inside a big box of 40" * 32" * 24" ??
*June 21, 2011*

**Physics **

The mass of an astronaut is 72kg. (a) what is his weight on earth ( taking g to be 10N/kg) ? (b) if the astronaut is on the moon's surface where the acceleration due to gravity is one-sixth on the earth , calculate (I) the mass (ii) the weight of the astronaut Thanks for ...
*June 2, 2011*

**Physics**

Thanks !!! :)
*June 2, 2011*

**Physics**

A lift is pulled up to the top of a building by a constant force of 6400N at a constant speed of 2m/s. It takes 3mins to reach the top. (a) how much work is done in raising the lift to the top of the building ? (b) what is the power required ?
*June 2, 2011*

**Chemistry**

How will the equilibrium: Heat energy + CH4 + 2H2S = CS2 + 4H2 be affected by the following? a) A decrease in temperature? b) The addition of H2 c) The removal of some CH4 d) An increase in the volume of the container e) The addiotion of a catalyst. i know that [CH4] goes up...
*May 31, 2011*

**economics**

what cause the financial crisis that occurred in 2008
*May 12, 2011*

**Maths SUPER URGENT**

Thanks. Talked to my Dad. Told me to assume that the down pipes had a width of 200mm as this is for a school auditoriam. @ drwls. Yes, the roof area has already been taken into account @ bobpursley. how would i design for max rainfall? The school is in the desert.
*May 8, 2011*

**Maths SUPER URGENT**

Hey What size down pipe would I need, and how many if my roof area equals 1224.78 metres squared and I have average rainfall of 173kl per year? Also how much plumbing would I need from my hypothetical tanks?
*May 8, 2011*

**Microecinomics**

Opportunity cost is represented by what you're losing by choosing one option. For example, by going to the movies your opportunity cost is doing your homework. Therefore, the opportunity cost of producing potatoes is 50 chickens. The opportunity cost of producing chickens ...
*March 25, 2011*

**Chemistry for Engineers**

A gas is confined to a container with a massless piston at the top. (Part C figure) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45 L. When the external pressure is increased to 2.50 ...
*March 25, 2011*

**chemistry**

A gas is confined to a container with a massless piston at the top. (Part C figure) A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.90 to 2.45 L. When the external pressure is increased to 2....
*March 25, 2011*

**pre algebra**

If the question is what is the product of (8x^5-5x)(7x^3) you can find this by using the FOIL method. i.e-(8x^5)(7x^3)-(5x)(7x^3)= 56x^5+3-35x1+3= 56x^8-35x^4
*March 25, 2011*

**math**

Speed of gravity: 9.8meters/second Given 0.02 seconds, you can use conversion method. 9.8m/s*0.02seconds=0.196meters
*March 25, 2011*