10/07/13

Picking r objects from n when order counts
In how many different ways can 10 pigeons roost in 15 pigeon holes, if pigeons like to sleep alone?
Follows • 3
Expert Answers •2

10/07/13

A boy of weight, W, hangs from the center of a clothesline and distorts the line so that it makes 30 degrees angles with the horizontal at each end.
Find the tension in the clothesline in terms of W.
Follows • 4
Expert Answers •3

10/07/13

find the equation of the non vertical asymptote
f(x)= -3x3+ 3x2 +1x-7/ 2x2-6x-3 find the equation of the non vertical asymptote y= does f(x) intersect its non vertical asymptote? what is the smaller value of x at which f(x) intersects its non... more
Follows • 2
Expert Answers •1

10/06/13

Use the Euler method?
Use the Euler method with h=0.05 to find approximate values of y'=3+t-y, y(0)=1 at t=0.1, 0.2, 0.3, and 0.4.   Answer: 1.1975, 1.38549, 1.56491, 1.73658
Follows • 3
Expert Answers •2

10/06/13

In the pick-4 lottery, 4 digits are drawn randomly in order (drawing 1355 is not the same as drawing 1535). You buy one ticket. Determine the probability that:
a. You win the jackpot. b. All but your first digit matches the winning four digit number. c. Exactly three of your four digits matches those of the winning four digit number. d. At least three... more
Follows • 2
Expert Answers •2

10/05/13

400 g of steem at 400c is cooled to ice at 0c. howmany joules of heat must be lost to achive this change
400 g of steem at 400c is cooled to ice at 0c. howmany joules of heat must be lost to achive this change
Follows • 2
Expert Answers •1

10/05/13

you have a block of material that measures 2.5cm x 3.5cmx 10.7cm and hasd a density of 10.68g/cm. the block has a density of 10.68g/cm. the block has a specific
you have a block of material that measures 2.5cm x 3.5cmx 10.7cm and hasd a density of 10.68g/cm. the block has a density of 10.68g/cm. the block has a specific heat of 0.222cal/gc and is heated... more
Follows • 3
Expert Answers •2

10/05/13

solution to what type of a planet would have and average temperature of 40 degrees, a year on the planet lasts 423 earth days
Follows • 3
Expert Answers •2

10/03/13

When does 2nd car catch 1st car?
1st Car leaves point A at 5pm at avg speed of 80km/hr. Second car leaves point A 45 minutes later at 110km/hr. When does the 2nd car catch the 1st car. Show working.
Follows • 7
Expert Answers •6

10/03/13

Finding the mass
Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are needed to absorb 4.10 MJ of energy (in the form of heat) if the temperature of the sodium is... more
Follows • 2
Expert Answers •1

10/03/13

Find an arc length parametrization
Find an arc length parametrization  of r(t)=/<6t^2 ,3t^3.>   r'(t)= <12t,9t^2> length of r'(t)= sqrt(144t^2+81t^4) integral sqrt(144t^2+81t^4) from 0 to t is t*sqrt(144+81t^2) u=... more
Follows • 2
Expert Answers •1

10/02/13

Find the general solution?
Find the general solution of x'=(2, 1, -5, -2)x+(-cos(t), sin(t)).   (this is 2x2 matrix with 2 and 1 on the left, -5 and -2 on the right. And -cos(t) on top, sin(t) on bottom. I've found the... more
Follows • 2
Expert Answers •1

10/01/13

Solve the Problem
A gear with a radius of 8 centimeters is turning at pi/7 radians per second. What is the linear speed at a point on the outer edge of the gear?
Follows • 2
Expert Answers •1

09/30/13

The registered voters in a certain district break down as follows:
45% Democrats, 42% Republicans, and 13% Independents. In a certain election, 22% of the Democrats, 25% of the Republicans, and 83% of the Independents voted in favor of a proposition. Determine the... more
Follows • 4
Expert Answers •3

09/30/13

An urn contains 5 red marbles, 4 white marbles, and 3 blue marbles...
A marble is drawn at random. Whatever marble is drawn, is returned to the urn, along with two additional marbles of the same color. Another marble is then drawn from the resulting urn. What is the... more
Follows • 3
Expert Answers •2

09/30/13

there's the problem, can you PLEASE break it down so I can understand it??
Paul invests $15,250 in two different accounts. One pays an interest rate of 8.5% while the other account pays 10%. If he gains a total of $1411.75 annually, how much did he invest in each account?
Follows • 5
Expert Answers •4

09/30/13

Probability that sample of 60 homes yields less than 2 or greater than 2.5 cars
given a mean of 2.28 cars per house and standard deviation of 1.3
Follows • 3
Expert Answers •2

09/30/13

find the next number in the sequence 10,9,90,91,7000
how did we get to 7000 in the sequence above and what is the next number?
Follows • 2
Expert Answers •2

09/29/13

chemistry find mass
i am so confused why i find two different answers while i did in two different ways!   I have 60ml 1M HCL    The question asks me to find the mass of HCl.   1. m=0.06L*(1mol / 1L)*(36.458g/mol)... more
Follows • 5
Expert Answers •4

09/28/13

Two marbles are drawn, without replacement, from an urn containing 4 red marbles, 5 white marbles, and 2 blue marbles. Determine the probability that:
a. Both are red. b. The first marble drawn is red, and the second is blue. c. The first marble drawn is blue, and the second is red. d. One of the marbles is red and the other is blue.
Follows • 4
Expert Answers •3

09/28/13

find the z and p value
In 1995 a national vital statistics report indicated that about 2% of all births produced twins. In the rate of twin births the same among very young mothers? Data from a large hospital found only... more
Follows • 2
Expert Answers •1

09/28/13

Use Partial Fraction Decomposition
S (x2+5)/x3-x2+x+3S = Integral
Follows • 2
Expert Answers •1

09/27/13

a kayaker can paddle her kayak at a steady 2.5 meters/sec in still water.
She wishes to cross a river that is 2.0 km wide and has a current of 1.5 meters/sec. If the kayaker aims her craft straight across the river, the current will carry her downstream as she paddles... more
Follows • 5
Expert Answers •4

09/25/13

Find the general solution?
Find the general solution of x'=(1, sqrt(3), sqrt(3), -1)x+(e^t, sqrt(3)*e^-t). (this is 2x2 matrix with 1 and sqrt(3) on the left, sqrt(3) and -1 on the right. And 2x1 matrix with e^t on top,... more
Follows • 2
Expert Answers •1

09/25/13

Graph the conic section: x^2=-8(y-1) (include foci, vertices, symptotes when required
graph the conic section
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.