10/27/14

2sin(x)cos(x)+sin(x)=0

Find all the angles in radians that satisfy the equation.  For each solution enter first the angle solution in [0, 2pi), then the period.  When 2 or more solutions are available enter them in... more

10/27/14

A ferris wheel is 20 meters in diameter and makes one revolution every 8 minutes. For how many minutes of any revolution will your seat be above 15 meters?

I know you have to set up the equations for like Asin(B(t-h)+k but I cant figure out how to solve for h.

By how many seconds does his book beat yours to the water?

After the semester, you discover that the math department has changed textbooks (again) so you can keep the textbook issued to you at the beginning of the year. Having learned all you could... more

10/26/14

Biologist tagged 53 penguines in Antarctica during mating season

Biologist tagged 53 penguines in Antarctica during mating season.  The next year, they caught 82 penguines and found that 11 of them had tags.  estimate the total number of penquines in the area.

10/24/14

The teachers at P.S. 125 are having a bake sale to raise money for the Rlay for Life.

The teachers at P.S. 125 are having a bake sale to raise money for  the Rlay for Life. Ms. Amato baked 5 times as many as Ms Frank. Ms. Silver baked 9 times as many as Ms Frank. Ms. Bugatti... more

10/23/14

A cuboid has a square base of side x cm. The height of the cuboid is (x + 4) cm. The volume of the cuboid is 150cm^3. Show that x^3 + 4x^2 = 150

A cuboid has a square base of side x cm. The height of the cuboid is (x + 4) cm. The volume of the cuboid is 150cm^3. Show that x^3 + 4x^2 = 150

Financial and Finite Math question......(word problem).

National Business Machines manufactures 2 models of fax machines: A and B. Each model A costs $100 to make, and each model B costs $150. The profits are $30 for each model A and $40 for each model... more

10/23/14

probability, using direct and indirect reasoning?

a student deals 3 cards from a statndard 52 deck of cards, what is the probability to the nearest hundredth at least one card is a heart.  a) Direct reasoning   b) indirect reasoning

10/21/14

write an equation using the variable X to model this situation.

Mary put new tiles on her kitchen floor.  The floor measures 6 feet long by 5 feet wide. She used 10 tiles to cover the entire floor. Each tile was 3 feet long. Write an equation using the variable... more

10/21/14

To the nearest tenth of an inch, how long is the foot of a person who wears a size 10 1/2 shoe?

Can you please solve this math problem?  

10/21/14

My sum is between 7 and 9. I am not a double. I am not a double plus one. Who could I be?

Show work for this word problems step by step.

10/20/14

5x3 - 45x = 45x - 45x5x3 - 45x = 0.

according to the solution i saw, it led to 5x(x^2-9)=0

Venn diagram

Compact Disc Collection Gitti is a fan of the music of Paul Simon and Art Garfunkel.In her collection of 25 compact disc, she has the following:   5 on which both Simon and Garfunkel sing 7 on... more

10/20/14

Find an equation of a rational function f that satisfies the given conditions.

vertical asymptotes: x = −2, x = 5horizontal asymptote: y = 2x-intercept: −5, 1; hole at x = 0   f(x)=?

For the function, find the intervals where the function is increasing, decreasing, or constant.

The function is: R(x)= (x+2)2 if x<-1 -x if x≥-1 Thanks in advanced.

10/16/14

Please Solve

Good morning, Could you show me the steps on solving this problem I did it in class but missed a few steps.   Three siblings, Alice, Bob and Caro truthfully reported their grades to their... more

10/14/14

What is x in 9x - 32 = 140

I need help with this problem I did the worg but it gave me a contineous number. 

Find the vertex and axis and the graph

f(x)=x^2+2x+6

10/14/14

Please Solve

I am sorry, Typed the wrong info. please see correct info below  If p and q are the statementsP: Jack is a good golferQ: Jack is not a good tennis player Translate each of the following into... more

Assume that n = 15, and p = 6 7 . Find the probability of at least 2 successes and at least 1

involving the computation of probabilities for a Bernoulli trial.

10/09/14

4x-(9x+2) Math

4x-(9x+2)

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