12/07/16

How long will it take for each container to contain the same amount of water?

container A has 200 L of water, and is being filled at a rate of 6 L per minute. container B has 500 L of water, and is being drained at 6 L per minute. How many minutes, m, will it take for the... more

12/07/16

Who ate the last piece of pie?

Mr H said Mr p did. Mr p said Mrs B did Mr A said not me Mrs B said Mr p lied

12/07/16

Trig Problem?

The horizontal distance traveled by a cannonball in a vacuum can be calculated using the equation range = (velocity)^2/9.8 * sin(2*theta), where the velocity is 50 m/s. What is the value of theta... more

quadratic formula

i bought a truckload of wreaths for 750$ and priced them so I would make a 2$ profit on each one sold. When i sell all but 100 wreaths, i break even. how many wreaths were in the truckload?

12/07/16

7( 2n+6)=9 (n+3) +5

i need help please hurry 

12/07/16

The distances in outer space are huge

I don't think this is true  

12/07/16

Find the initial amount placed in the account. Round your answer to the nearest cent.

An initial amount of money is placed in an account at an interest rate of 2% per year, compounded continuously. After six years, there is $1792.72 in the account.

12/07/16

Trigonometry/PreCalc

Find all solutions to the equation sin x= -1.   (a) 90degrees +360degrees n (b)270degrees+360degrees n  (c) 90degrees +360degrees n or 270degrees+360degrees n  (d)360degrees n or 180 degrees... more

12/07/16

slope of a line

Find the slope of the line that passes through the pair of points listed below.(3,8) , (7,3)

12/07/16

if a cheetah ran 100 meters in 5.95 seconds which expression gives the number of feet covered by the cheetah if 1meter=3.28ft

in my math class we are working on expressions and on linear equations and this question is being assigned for homework but I don't get it                

12/07/16

Linear inequalities

4(3x-5)+7>8x+3

How fast were they traveling?

At 3:00 pm they are 75 miles away; they checked again at 4:30pm and were 15 miles away.    a) on average, how fast were they traveling?   b) write an equation that gives the distance from the... more

12/07/16

Which ordered pair could be the x-intercept of the graph of a line (where the line crosses the x-axis)?

a (0, 7) b (4, 0) c (-3, 6) d (2, 9)

12/07/16

Solve for X, given BD=3x+5 and AE=4x+20

B is the midpoint of segment AC and D is the midpoint of segment CE. Solve for x, given BD=3x+5 and AE=4x+20

What is the x-intercept for y = x -4?

I have a hard time with these linear equations and this question makes no sense

how to solve a system of linear of inequalities?

I have a problem that says: A machine shop makes 2 types of parts, bearings and washers. in order to make a profit the company must ship at least 5,000 parts per day. in order to maintain quality... more

Polynomial maths question

f(x)=x4+ax3+bx2+cx+d if f(2)=1, f(3)=2, f(4)=3, f(5)=4 then a+b+c+d= ?

What is the line of symmetry of the quadratic function f(x)=(x-5)^2+11

What is the line of symmetry of the quadratic function f(x)=(x-5)^2+11

If you flip a coin 3 times....

If you flip a coin 3 times, what is the probability of getting exactly 1 head and 2 tails?

12/06/16

Complex Numbers

solve 3i(5i+3i^2)+4(2-i)

C = Speed of Light, V = an astronauts speed, Ra = aging rate of an astronaut, and Rf = aging rate of a friend on Earth.

C= (V)/ sqrt((1)-((Ra/ Rf)2))   1. Using the above equation, solve for Ra, the aging rate of the astronaut. Show all the algebraic steps. HINT: Start by letting and setting up a proportion. This... more

12/06/16

Solve the triangle using the standard notation

A=10, b=20, c=12

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