Thursday

August 25, 2016
Total # Posts: 98,829

**Math help.**

What are the solutions to the systems? y=x^2+6x+7 y=-x+13 A. (-1,14) and (6,7) B. (-1,7) and (6,14) C. (-1,13) and (6,7) D. No solution I think its D.
*May 14, 2016*

**Pre-Calc**

If five girls and five boys stand in a circle, how many arrangements are possible provided they stand alternately (girl, boy, girl, boy, etc)?
*May 14, 2016*

**Algebra**

Solve for t: t^6=8-t^3
*May 14, 2016*

**Physics **

A net force of 20N acts on a 5kg object.Determine how far the object travels starting from rest to acquire a speed of 8m/s
*May 14, 2016*

**Algebra**

What is the value of m, if the equation my^2+2y−4=0 has exactly one root?
*May 14, 2016*

**math (PLZ HELP ASAP)**

Paula, Dianna and Annie are three friends. Paula is twice as old as Dianna, and in 2 years she will be three times as old as Annie. If Dianna is 5 years older than Annie, how old is Paula? please use algebra to justify your answer.
*May 14, 2016*

**Math**

Find g(2) – f(2) Use f( x ) = 2x – 1 and g( x ) = x + 5
*May 14, 2016*

**Math**

f( x ) = 3x + 5 and g( x ) = -x + 9 Find: f( x ) – g( x )
*May 14, 2016*

**math (pLZ HELP ASAP)**

how to crank it out
*May 14, 2016*

**math (pLZ HELP ASAP)**

The units’ digit of a two-digit number is 7 more than the tens’ digit. If 26 is added to the number, the result obtained is five times the sum of the digits. Find the number.
*May 14, 2016*

**math (PLZ HELP ASAP)**

thanks
*May 14, 2016*

**math (PLZ HELP ASAP)**

The students asked their math teacher to tell them her age. She didn’t want to tell them, but she replied, “If you take two years from my present age the result will be three times my son’s age, and seven years ago my age was twice what his will be in two years...
*May 14, 2016*

**math**

You own two restaurants. From 1995 to 2000, the sales R1 (in thousands of dollars) for one restaurant can be modeled by: R1 = 480 – 8t – 0.8t2, t = 0, 1, 2, 3, 4, 5, where t = 0 represents 1995. During the same 6-year period, the sales R2 (in thousands of dollars) ...
*May 14, 2016*

**Functions Math**

A car has 16 gallons of gasoline in its tank when it starts it's journey. On a long highway trip, gasoline is used at a rate of about 2 gallons per hour. The gallons of gas, "g", remaining in the car’s tank after "t" hours can be modeled by the ...
*May 14, 2016*

**geometry**

quadrilateral ABCD is a trapezium iff its diagonals intersect each other in the same ratio .proof this
*May 14, 2016*

**science**

give five application of Doppler effects
*May 14, 2016*

**math**

there are 28 students in a class. 16 of them are boys. What is the percentage of girls in the class?
*May 13, 2016*

**PLZ HELP ASAP math**

plz help
*May 13, 2016*

**PLZ HELP ASAP math**

help plz asap
*May 13, 2016*

**PLZ HELP ASAP math**

help
*May 13, 2016*

**PLZ HELP ASAP math**

how to i crank it out?
*May 13, 2016*

**PLZ HELP ASAP math**

Paula, Dianna and Annie are three friends. Paula is twice as old as Dianna, and in 2 years she will be three times as old as Annie. If Dianna is 5 years older than Annie, how old is Paula?
*May 13, 2016*

**Math**

My answers are: 1. d 2. b
*May 13, 2016*

**Math**

1. Which of the following is an example of a dependent event? (1 point) flipping two coins rolling a number cube and spinning a spinner choosing two scoops of ice cream choosing a cookie at random, eating it, and then choosing another at random** 2. Which of the following is ...
*May 13, 2016*

**Statistics Mean and Median Question**

Find the mean by adding all of the numbers and divide by 20.
*May 13, 2016*

**Math**

Thank you
*May 13, 2016*

**Math**

What are equal intervals? I have a math question that deals with them but I don't what they are.
*May 13, 2016*

**Math**

thanks
*May 13, 2016*

**Math**

Can someone help me?
*May 13, 2016*

**Math**

Divide (x^2+2x+ over x^2-8x+16) over(x+1 over x^2-16) A. (x-1) (x+4)over x+1 B.(x+1)(x+4)over (x-4) C. (x+1)(x+4)over (x-1) D.(x-1)(x-4)over (x+4)
*May 13, 2016*

**Life orientation**

Human rights violations
*May 13, 2016*

**Math**

Thanks
*May 13, 2016*

**Math**

Thats not on my answer. Here they are. A.5x+7/(x+2)(x+9) B.5/(x+2)(x+9) C.7/(x+2)(x+9) D.5x+52/(x+2)(x+9)
*May 13, 2016*

**Math**

Simplify into one fraction. 6/x+2-1/x+9
*May 13, 2016*

**Math**

Solve the IVP: y' = y + y^3 , y(0)=1
*May 13, 2016*

**life orientation**

Bcz ur experiencing this
*May 13, 2016*

**math**

Classify the triangle with sides of lengths 24, 24, and 4
*May 13, 2016*

**Pre-Calc**

Find the sum of the series 1 + 2 + 4 + 5 + 7 + 8 + 10 + 11 + ... + 299, which is the sum of the integers from 0 to 300, omitting the multiples of 3.
*May 13, 2016*

**math**

A friend drives 15 miles west and then 5 miles east. How far away is she from her starting point?
*May 13, 2016*

**math**

Find the image of (3,6) reflected across the y-axis
*May 13, 2016*

**math**

Five children in the Woods family have decided to purchase an anniversary gift for their parents. They estimate the price of the gift to be $170. Each person has already contributed $10. If they have eight weeks to raise the rest of the money, how much will each child have to ...
*May 13, 2016*

**Pre-Calc**

Tritium, a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 69 grams, how much will remain after 75 years?
*May 12, 2016*

**Pre-Calc**

An initial investment of $9000 grows at an annual interest rate of 5% compounded continuously. How long will it take to double the investment?
*May 12, 2016*

**science 4th grade**

What is the property of matter that keeps a moving object in a straight line called
*May 12, 2016*

**Math**

24
*May 12, 2016*

**Math, Algebra**

81^3(x+1)=9^2(x-1) Solve this equation by expressing both sides as powers of 3.
*May 12, 2016*

**Math, Algebra**

81^3(x+1) = 9^2(x-1) Solve this equation by expressing both sides as powers of 9.
*May 12, 2016*

**Math, Algebra**

81^3(x+1)=9^2(x-1) Solve this equation by expressing both sides as powers of 3.
*May 12, 2016*

**Science**

i need help with this too
*May 12, 2016*

**Geometry **

A triangle pyramid with a base area of 18 square inches and a height of 15 inches...
*May 12, 2016*

**Math**

a cake is cut into 12 equal pieces. there are 7 children and each child eats 1/3 of a piece
*May 12, 2016*

**math**

A ball is dropped from a height of 256 ft. With each bounce, the ball reaches a height that is half the height of the previous bounce. After which bounce will the ball rebound to a maximum height of 1 ft?
*May 12, 2016*

**math**

John leaves on a 20-mile bike trip. He rides at a speed of 8 mile per hour. Ashley leaves 1 hour later. Both bikers take the same route. Ashley rides at a speed of 6 miles per hour. How many later than John will Ashley complete the trip?
*May 12, 2016*

**math**

Thank you $266, is this correct?
*May 12, 2016*

**math**

It's a math word problem I need to know what to do. I don't care about that.
*May 12, 2016*

**math**

A credit card company charges 7% simple interest. What is the total interest on a $1,900 loan at the end of two years?
*May 12, 2016*

**Pharmacy calculation**

An Rx calls for hydrocortisone 1% mixed with mupirocin 2% in a 70%/30% combination for a total of 60 grams. What is the % strength of mupirocin in the final product? Can anyone out there help explain how to answer this question? Thanks in advance.
*May 12, 2016*

**Inequality**

What is the solution to the inequality -3x-42>3?
*May 12, 2016*

**Physics**

A particle executes simple harmonic motion such that at t = 0 it is at the amplitude of oscillation A = 22.5 cm. The period of the oscillation is 0.25 s. When is the first time this particle will be at x = -1/2 the amplitude, moving away from equilibrium?
*May 12, 2016*

**Human Geography**

I have looked at texts and powerpoints to help respond to an FRQ. So if I were to give examples but they weren't quite like the o nes on the rubric, they wouldn't give any points?
*May 12, 2016*

**Human Geography**

a fairly decent response* Didn't mean to put essay.
*May 12, 2016*

**Human Geography**

I am going to take the AP test for this class tomorrow and during the FRQ's I was wodering if anyone could help me clear some things up When answering an FRQ, for example, if you were able to get a max of 6 points and you answer the FRQ but you don't give the exact ...
*May 12, 2016*

**CHECK my answers for drivers education please!**

11. The only sure way to reduce the body’s BAC and the degree of impairment is to (1 point) take a cold shower. wait the necessary time the body needs to eliminate the alcohol.*** handle a sudden emergency. consume several cups of black coffee. 12. Coping with emotions ...
*May 12, 2016*

**math**

toffees are sold in packs of 8. Tony buys 4 packs. He eats 25 toffees. How many toffees are left?
*May 12, 2016*

**science**

12:1
*May 12, 2016*

**L.A**

During her time in the Secret Annex, Anne demonstrates that she is a unique and remarkable young person with many dimensions to her character. In an essay, explain what makes Anne a complex character. Include details from The Diary of Anne Frank, Act I and Act II in your essay.
*May 12, 2016*

**Physics **

An empty density bottle weight 20g full of water and 60g when full of liquid
*May 12, 2016*

**Math!!**

the lateral area consists of 4 isosceles triangle faces. the side length of the pyramid is the base of each face. The slant height of the pyramid is the altitude of each face. Looking sideways into the pyramid, the slant height is the hypotenuse of a right triangle whose base ...
*May 12, 2016*

**L.o**

How the Fraud and corruption affected the offenders career.
*May 12, 2016*

**physics**

sqrt(2h/g)/sqrt(4h/g)
*May 12, 2016*

**physics**

3 person are moving triangle place.their velocity are equal. they are follow each other after which time they should meet with each other?
*May 11, 2016*

**math**

Jenna baked apple pies for a family reunion. Each pie was cut into 9 pieces. Her family ate 28 pieces of pie. Write the number of pies Jenna's family ate as an improper fraction and as a mixed number.
*May 11, 2016*

**math**

A mechanic needs a radiator to have 40% antifreeze solution. The radiator currently is filled with 5 gallons of 15% antifreeze solution. How much antifreeze mixture should be drained from the car if the mechanic replaces it with pure antifreeze. Drain__ gallons from the ...
*May 11, 2016*

**math**

30x+60y=360 x+y=9
*May 11, 2016*

**emily d**

thank you! but how did you get 347.139?
*May 11, 2016*

**math**

first you have to use a table or a calculator to find the log of 200. Put that result into the formula given.
*May 11, 2016*

**math (PLZ HELP ASAP)**

A rectangle has an area of 240 m² and I width of 15 m what is the length of the rectangle
*May 11, 2016*

**math (PLZ HELP ASAP)**

thanks
*May 11, 2016*

**math (PLZ HELP ASAP)**

or is it 153
*May 11, 2016*

**math (PLZ HELP ASAP)**

oh so in square meters it is 153600
*May 11, 2016*

**math (PLZ HELP ASAP)**

wait i don't get it
*May 11, 2016*

**math (PLZ HELP ASAP)**

thanks
*May 11, 2016*

**math (PLZ HELP ASAP)**

plz help
*May 11, 2016*

**math (PLZ HELP ASAP)**

sorry
*May 11, 2016*

**math (PLZ HELP ASAP)**

3/8 times
*May 11, 2016*

**math (PLZ HELP ASAP)**

A rectangular field is 240m wide. The width of the field is 3 8 the length. What is the area of the field in square kilometers, rounded to the nearest thousandth?
*May 11, 2016*

**math (pLZ HELP ASAP)**

how many miles did it take to go through the mountain
*May 11, 2016*

**math (pLZ HELP ASAP)**

it is ok
*May 11, 2016*

**math (pLZ HELP ASAP)**

how much miles was it though the mountain
*May 11, 2016*

**math (pLZ HELP ASAP)**

A train averages a speed of 90 miles per hour across the plains and 37.5 miles per hour through the mountains. If a trip of 300 miles took 3 hour and 48 minutes, how much of it was through the mountains?
*May 11, 2016*

**math (PLZ HELP ASAP)**

thanks soon much
*May 11, 2016*

**math (PLZ HELP ASAP)**

a dad has two daughters – Wendy and Julia. Wendy is twice as old as Julia. The man is now five times as old as Wendy, and in 4 years he will be six times as old as Julia. Find the present age of the father.
*May 11, 2016*

**Math**

4(35) = x(45) I agree with 3.11
*May 11, 2016*

**Math**

combination of 5! divided by 2!3! combination of 6! divided by 3!3! factorial means 5! = 5x4x3x2x1 Multiply both of your answers together to get the number of committees.
*May 11, 2016*

**science**

I agree with you
*May 11, 2016*

**CHECK my drivers ed answers**

1. Searching for other roadway users includes identifying (1 point) only those in motor vehicles. signs, signals, and roadway markings. users of different sizes and shapes. the characteristics of the roadway.**** 2. What is the Zone Control System? (1 point) a method of ...
*May 11, 2016*

**Astronomy**

How can I tell a north circumpolar star from a south circumpolar one based on its declination and my location?
*May 11, 2016*

**7th Math**

Please help me too
*May 11, 2016*