# Posts by jane

Total # Posts: 1,637

**math**

You have a total of 52 dimes and quarters. You have 10 more quarters than dimes. Which system of equations can you use to find the number x of quarters and number y of dimes you have? Use the system to determine how much money you have in quarters and dimes.

*March 15, 2017*

**English 11**

Whats the difference between project proposal and research proposal?

*March 12, 2017*

**English 11**

Can you send me a good reference about how to create a project proposal for a middle school stude like me? Thanks a lot.

*March 12, 2017*

**Writing**

Whats the difference between project proposal and research proposal?

*March 12, 2017*

**Writing**

Anyone who knows a good source on how to write a project proposal?

*March 12, 2017*

**Finance**

What is the present value of $100 PERPETU I TY of the interest rate is 7%? If interest rates doubled to 14%, what would its present value be? At 7% hundred dollars multiplied 0.943 equals 9430 or is it 14.2857 multiplied 100 equals 1428. 57? At 14% is it $100 times 0.877 ...

*March 7, 2017*

**math**

a printer prints 17 pages is 6 minutes. how many minutes per page

*March 2, 2017*

**math need help now**

all tutors here r great. U will get an answer soon. K. Hope u get the right answer.

*February 24, 2017*

**math need help now**

Would it be D

*February 24, 2017*

**Math**

A segment that is a units long makes a C-degree angle with a segment that is b units long. In terms of a, b, and C, find the third side of the triangle defined by this SAS description.

*February 19, 2017*

**Math**

A circular sector has an 6.26-inch radius and a 10.84-inch arc length. There is another sector that has the same area and the same perimeter. What are its measurements?

*February 19, 2017*

**Financial management**

You are an incredibly sexy individual and have just won best price in a beauty context.you have the following options a)$1000 received now b)$180000 at the end of five years C)$11400per year for ever Prove to select the optimal price assuming discount rate is 12%

*February 11, 2017*

**Political Science**

What are some pros and cons to privatizing the U.S Postal Service?

*February 10, 2017*

**physics**

An object is released from rest and falls in free fall motion. The speed v of the object after it has fallen a distance y is given by v2 = 2gy. In an experiment, v and y are measured and the measured values are used to calculate g. If the percent uncertainty in the measured ...

*February 5, 2017*

**science**

i think the ans is B

*January 26, 2017*

**science**

Free ears in dogs are controlled by dominant allele (F), and attached ears are controlled by the recessive allele (f). In addition, Short dogs is due to a dominant allele(S), and long hair is due to a recessive allele (s). Which of the following is the genotype of the dogs ...

*January 26, 2017*

**biology**

Which of the following organs remove nitrogenous waste from the body? a. Liver b. Large Intestine c. Kidneys d. Gall Bladder

*January 26, 2017*

**8th grade math**

I say D because 3/5 is a simplified version of 6/10

*January 26, 2017*

**Visual Basic Programming in Visual Studio 2015**

I have an application program to submit help tickets. The problem is the error messages are only supposed to pop up when someone doesn't format it correctly but it either don't or comes up after typing when there is no errors. The next issue is my msgbox for ...

*December 1, 2016*

**American Government**

The federal government sets requirements that all public schools must follow, while state governments set standards listing what students need to learn. This is an example of what constitutional system? A. dual federalism B. cooperative federalism C. layered federalism D. ...

*November 26, 2016*

**social studies**

Rosie is right. Thanks!

*November 10, 2016*

**Math**

A store buys shirts for $12 each and marks up the price by 25%. What is the price for a shirt at this store?

*November 1, 2016*

**Physics**

two blocks (a and b) are in contact on a horizontal frictionless surface. a 60N constant horizontal force is applied to A. the mass of a is 3.0 kg and the mass of b is 15 kg. what is the magnitude of the force of a on b

*October 27, 2016*

**STATISTICS**

Miss Dombo, a Ticketing Manager with an Airline flying international routes, has realised that not all passengers show up for their reserved seat. It is clear to her that each passenger’s behaviour is independent of the other. Having fixed the chances of a passenger not ...

*October 27, 2016*

**biology (genetics)**

A pure-breeding white mouse with a long tail was crossed to pure-breeding pink mouse with a short tail. The F1 progeny were all pink with long tails. These F1 mice were test crossed to white mouse with a short tail. If the gene controlling color and the gene controlling tail ...

*October 24, 2016*

**Genetics**

A pure-breeding white mouse with a long tail was crossed to pure-breeding pink mouse with a short tail. The F1 progeny were all pink with long tails. These F1 mice were test crossed to white mouse with a short tail. If the gene controlling color and the gene controlling tail ...

*October 24, 2016*

**Math**

84.82inches

*October 7, 2016*

**Math**

Village B is 7km due south of village A and village C is 9km due south of B. Village D is 8km from A and is due east of B. Find DB and DC.

*September 24, 2016*

**Physics**

If you apply a changing force, will either the velocity or the acceleration change in the same way as the force?

*September 18, 2016*

**Math**

I have to invest $7000 and would like $300 as earnings from the investment. How much should I invest in stock that's getting 13% annual return and how much should I invest in a bond that pays 2%?

*September 15, 2016*

**Math**

I think the answer is 18-10=8

*September 15, 2016*

**Math**

10-18=8

*September 15, 2016*

**Math**

Between midnight and 6:00am, the temperature dropped 10 degrees F. Between 6 am and 12:00; the temperature rose 18 degrees F.What was the change in the temperature from midnight to noon. I can't seem to get the formula for this problem

*September 15, 2016*

**Math**

Jenny bought 3.50 pounds of peanuts for $12.60.Her friend buy's 4.00 pounds of pecans for $15.20. Which is less expensive per pound? By how much?

*September 12, 2016*

**Calculus**

Hi, please I need help with this demonstration: If “f” , “g” :[ 0,1]→R are continuous functions, they are differentiable in (0,1), f(0)=0, g(0)=2 and │f ‘ (x)│≤1 ,│g ‘ (x)│≤1 for the interval (0,1). Prove ...

*September 3, 2016*

**chemistry**

2.00g of carbonate reacts with excess hydrobromic acid. Use this balanced equation to fond the theoretical yield. Na2Co3 + 2HBr = CO2 + H2O + 2NaBr

*August 16, 2016*

**ENGLISH**

I don't know

*August 16, 2016*

**Algebra**

Where do you insert parenthesis to make this equation true: 3x5+4-2x2+6-4=15

*August 11, 2016*

**Chemistry**

The human body obtains 885 kJ of energy from a chocolate chip cookie. If this energy were used to vaporize at 100 degree Celsius, how many grams of water could be vaporized? The heat of vaporization of water at 100 degrees Celsius is 40.7 kJ/mole.

*July 20, 2016*

**Chemistry**

The human body obtains 885 kJ of energy from a chocolate chip cookie. If this energy were used to vaporize at 100 degree Celsius, how many grams of water could be vaporized? The heat of vaporization of water at 100 degrees Celsius is 40.7 kJ/mole.

*July 19, 2016*

**Math**

The ratio of a triangle's sides is 4:3:6. If the length of the hypotenuse is 1/4, what is the value of the length of the short leg of the triangle subtracted from the length of the long leg of the triangle? Help please?

*July 13, 2016*

**Physics**

1, A Body Of Mass 6kg Was Acted Upon By A Constant Force Of 18N. Calc Its Velocity In 5sec. 2. A Car Moving At 108km/hr Was Gradually Brought To Rest By Constant Force Of 2500N After 8sec. Calc The Decelleratio

*July 12, 2016*

**science**

what are some examples of a suspension? i need help!!!

*July 11, 2016*

**Math**

There are 12 more toy cars than toy trucks in a toy box with a total of 38 toy cars and trucks. How many toy trucks are in the toy box?

*July 5, 2016*

**math**

100 meters of fencing is available to enclose a rectangular area next to a river .Give a function that can represent the area that can be enclosed in terms of X

*June 28, 2016*

**Calculus - Discontinuity**

Thank you so much for explaining that!

*June 27, 2016*

**Calculus - Discontinuity**

I thought that since the limit exists, but does not equal f(3) it would be removable

*June 27, 2016*

**Calculus - Discontinuity**

What kind of discontinuity is this piecewise function? Removable or jump? f(x) ={ (2x^2 - 5x - 3)/(x-3) if x does not equal 3 ............6............................if x = 3

*June 27, 2016*

**math**

simplyfy if quadratic equation or not quadratic equation and arrange into quadratic equation form 25-r2=4x

*June 21, 2016*

**math**

a garden 7m by 12m will be expanded by planting a border of flowers,the border will be of the same width around the entire garden and has an area of 92m

*June 18, 2016*

**PreAlgebra**

Leg of 7 km and hypotenuse of 22 km

*June 8, 2016*

**chemistry**

lnK = -Ea/R (1/T) + lnA lnK = -111000/8.314 (1/548.15) + lnA so i've tried different things however given im provided with two rate constants and two temperatures im not sure which to use and also i don't have an A value. At first i tried to input one set of data and ...

*June 2, 2016*

**chemistry**

A certain first order reaction has a rate constant of 5.68 x 10–3 s–1 at 139°C and a rate constant of 8.99 x 10–1 s–1 at a temperature of 215°C. Ea = 111 kJ mol– q1) What is the value of the rate constant at 275°C? q2) ...

*June 2, 2016*

**chemistry**

oh wait sorry responding to wrong question

*June 1, 2016*

**chemistry**

yeah i figured out what was wrong I used that same process the entire time but was converting 275kj wrong i was always out by a factor of 10. haha

*June 1, 2016*

**algebra**

3+30

*May 23, 2016*

**English**

well thank you for trying

*May 19, 2016*

**English**

reed can you help please?

*May 19, 2016*

**English**

8. which of the following quotes from "the morning of june 281948" best describe the aversion that the public felt toward Shirley Jackson's short story "The lottery" a. "as a matter of fat when I read it over later I decided that except for one or ...

*May 19, 2016*

**Maths -Logarithm**

Q) what is the hundreds digit in 3^3^3? What are the steps in simplifying this number? Ty

*May 14, 2016*

**Algebra**

What is the value of c so that y=x^2+9x+c is a perfect square trinomial? A. 18 B. 9/2 C. 9/4 D. 81/4 My answer is D.

*May 13, 2016*

**life orientation**

Help me gyz plz

*May 12, 2016*

**maths**

if expressed in square millimeter what is 25 square meter 2:a football pitch which was originally 80m long had it length increased by 20m if the width of 70 m has remained unchanged what is the difference between the old nd d new perimeter of d pitch

*May 9, 2016*

**life orientation**

Youth are the one who create or start a crime,corruption is made by businesses we're by they employ relatives although they a unqualified

*May 6, 2016*

**Math**

I still don't get it. Could you explain a little more? Thanks Reiny

*April 25, 2016*

**Math**

Let f(x) = x^3 + 3x ^2 + 4x - 7 and g(x) = -7x^4 + 5x^3 +x^2 - 7. What is the coefficient of x^3 in the sum f(x) + g(x)? Thanks.

*April 25, 2016*

**Absolute and relative change**

In one region the number of students in Math 101 is 20% more than the number of students in Math 123. If there are 480 students in Math 101, how many students are in Math 123?

*April 24, 2016*

**Absolute and relative change**

You are charged $279 on your credit card for a hotel stay, you call to complain about the unexpectedly high charge, but are told there are a total of 24% taxes for hotel rooms where you stayed. What was the advertised price of the room before taxes?

*April 24, 2016*

**life orientation**

The right of religion or belief

*April 20, 2016*

**Business**

The number of square meters in a square rooms floor area exceed the number of meters in the rooms perimeter by 60.Find the side-length of the room.

*April 18, 2016*

**math**

In one month a salesman sold a total of 30 cars and trucks. If three times the number of cars sold equals twice the number of trucks sold, how many trucks did he sell?

*April 18, 2016*

**Life orientation**

Substance abuse

*April 17, 2016*

**life orientation**

Describe the three human rights violation or discrimination you selected. And give at least two examples of such violation or discrimination

*April 17, 2016*

**l.o**

Offender will doubt themselves when it comes to building their own career

*April 15, 2016*

**math**

Find all x such that x^2+5x<6. Express your answer in interval notation. Thank you!

*April 15, 2016*

**math**

Find p such that px^2-12x+4=0 has only one solution. Thank you!!!

*April 14, 2016*

**life orientation**

We must treat one another equally and with dignity we are all Africans and humans after all

*April 14, 2016*

**life orientation**

I dnt know any answer

*April 14, 2016*

**life orientation**

Hlp me gyz

*April 12, 2016*

**interest**

Bryan invests $500 in an account earning 4% interest that compounds annually. If he makes no additional deposits or withdraws, how much will be in the account: About how long would it take to double his $500 investment? Round to one decimal place.

*April 10, 2016*

**Math/Algebra**

Let f(x) = (3x - 7)/(x + 1). Find the inverse f^(-1)(x).

*April 9, 2016*

**Physics**

An ocean liner leaves New York City and travels 26.9 ° north of east for 217 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions (a) due east and (b) due north?

*April 7, 2016*

**Physics**

A 66-kg water skier is being pulled by a nylon (Young's modulus 3.7 x 109 N/m2) tow rope that is attached to a boat. The unstretched length of the rope is 20 m and its cross-section area is 2.8 x 10-5 m2. As the skier moves, a resistive force (due to the water) of ...

*March 23, 2016*

**Trig identity.**

I need help with verifying these trig identities: 1) sin4x = 4sinxcos - 8sin^3 x cos x 2) cos3x = cos^3 x - 3sin^2 x cos x

*March 15, 2016*

**Trig help**

Can someone help me find ALL solutions in the interval [0,2π) for the given equations. Please show work. 1) sin2x = sin2x 2) tan2x +tanx = 0

*March 15, 2016*

**chemistry**

how many grams of Zn metal would you use to prepare 6.8g of zinc chloride according the reaction: Zn(s)+2HCl(aq)-> ZnCl2(aq)+H2(g)

*March 9, 2016*

**chemistry**

how many grams of Zn metal would you use to prepare 6.8g of zinc chloride according the reaction: Zn(s)+2HCl(aq)-> ZnCl2(aq)+H2(g)

*March 9, 2016*

**trig**

Find all solutions in the interval [0,2π) for cos(x - π/6) = 1 + cos(x + π/6). Show work, please and state in solution set.

*March 8, 2016*

**Trig please**

The height h in inches of pistons 1 and 2 in an automobile engine can be modeled by h1 = 3.75sin(733t) + 7.5 and h2 = 3.75sin[733(t+ 4π/3)] + 7.5 where t is measured in seconds. How often are these two pistons at the same height? Show work please.

*March 8, 2016*

**Trig**

Given sin= -√5/6 with π < u < 3π/2 and cos v= √3/5 with 0 < v < π/2 find sin(u-v) and tan(u+v). Please show work and simplify.

*March 8, 2016*

**Trig application**

A man is holding a gun 4 feet above the ground and fires into an open field. The bullet has an initial velocity of 300 feet per second and an initial angle of 30°. Find the range (the horizontal distance traveled before hitting the ground ) and the bullet's max height...

*March 4, 2016*

**Trig application**

I'm having trouble with this trig application. The scenario goes: A ferris wheel has a diameter of approximately 65 meters. Assume it takes 110 seconds for the ferris wheel to make one complete rotation. find the angular speed of the ferris wheel in radians per minute and ...

*March 3, 2016*

**Social studies**

Don't be rude Ms. Sue. She's just trying to get help. Don't say things about, "Don't waste our time." It's people like you that make suicide a number one cause of death facing teens today. So don't be mean, just kindly tell her no and give a ...

*March 3, 2016*

**triggggg help**

Please help me find all solutions in the interval [0, 2π) for these equations: 1) sin^2 x cos x = 4 cosx 2) 1 - cos x = √3 sinx I need help.

*March 3, 2016*

**Calculus**

A rectangle is bounded by the x-axis and the semicircle y = sqrt(36-x^2). What length and width should the rectangle have so that its area is a maximum? I understand that 2xy = A and that 4x + 2y = P, but I'm not sure how to solve for a variable to plug back into the ...

*March 2, 2016*

**english**

dyslexia-'please describe a typical reaction'

*February 19, 2016*

**Health and Physical Ed**

oxygen...is right

*February 19, 2016*

**Trig application**

Can anyone help me with this problem? I'm so confused. Please help. A security camera is placed 27 feet from the counter at a store. The counter is 18 feet long and the camera is placed 4 feet from one end. What angle, to the nearest degree, should the camera rotate ...

*February 16, 2016*

**Trig identity inverses**

Thanks so much! I'm starting to get it. :)

*February 16, 2016*

**Trig identity inverses**

Find the exact value of cos[cot^-1 (-√3) + sin^-1 (-1/2)]. I'm having trouble with inverses. Please help by showing work.

*February 16, 2016*