Isaac C.

Physics

10/05/15

A rocket accelerates at 25m/s^2 for 5s before it runs out of fuel and dies. What is the maximum height reached by the rocket?

Physics question

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Answers •2

Math Word Problem

07/08/15

A musician released 12 albums. Company wants to release 5 in a box set. How many different box sets are possible?

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Answers •1

Calculus Calculating Average Rates Of Change Derivatives

07/07/15

What is The actual speed (along the road) of the red car for the measurement feet per second?

A police car is located 30 feet to the side of a straight road.A red car is driving along the road in the direction of the police car and is 210 feet up the road from the location of the police... more

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Answers •1

Math Physics Equilibrium

07/05/15

Physics: latent heat of fusion

If you want to find the latent heat of fusion, you take a cup with 0.755 kg of water at 30.00 C and drop 0.0850 kg of ice initially at 0.000 C and it all reaches an equilibrium temperature of 19.00... more

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Answers •1

Physics

07/04/15

Excluding stoppages the speed of a bus is 54km/hr and including stoppages it is 45km/hr. For how many minutes does the bus stop per hour.

Excluding stoppages the speed of a bus is 54km/hr and including stoppages it is 45 km/hr. For how many minutes the bus stop per hour.

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Answers •3

Algebra, Kwh, Complicated

06/20/15

Allison replaced 100-watt fixture with 15-watt fixture

Allison replaced 100-watt fixture with 15-watt fixture. She estimated that fixture will burn 2,000 h per year and that annual savings will be $20.40. What is the cost of electricity per kWh?

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Answers •1

Chemistry

05/11/15

consider Cu(s)+4HNO3(aq)-->Cu(NO3)2(aq)+2NO2(g)+2H20(l)

a. If Cu (s) is my limiting reagent, how many molecules of NO2 (g) will be produced from the reactant of 20346 g Cu with concentrated nitric acid? b. If I conduct this experiment at 25 degrees... more

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Answers •3

Math Physics Vector

05/09/15

Physics projectile question.

You’re 6.00 m from one wall of a house. You want to toss a ball to your friend who is 6.00 m from the opposite wall. The throw and catch both occur at 1.00 m above the ground. Here is a link to... more

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Answers •1

Pre Calculus

04/30/15

Find sin 2x, cos 2x, and tan 2x from the given information: sin x = -5/13 , x in Quadrant III, sin 2x = cos 2x = tan 2x =

I need help

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Answers •1

Pre Calculus

04/30/15

Use an Addition or Subtraction Formula to find the exact value of the expression: cos 255°

Help me please

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Answers •1

Probability Permutations Combinations

04/20/15

How many different values are possible for the random variable X

Assume that the machine yields the item selected 70 percent of the time, and returns nothing 30 percent of the time. Three individuals attempt to use the machine. Let X be defined as the number of... more

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Physics Radius Average Speed

04/15/15

Mercury orbits the sun with an average speed of 4.78 x 104 m/s. About how long does Mercury take to orbit the sun once if the radius of its almost circular orbi

Mercury orbits the sun with an average speed of 4.78 x 104 m/s. About how long does Mercury take to orbit the sun once if the radius of its almost circular orbit is 5.79 x 1010m?

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Answers •1

Quadratic

12/02/14

Find two numbers whose difference is 16 and whose product is a minimum. (Enter your answers as a comma-separated list.)

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Answers •1

Quadratic Functions

12/02/14

A tour operator believes that the profit P, in dollars, from selling x tickets is given by

A tour operator believes that the profit P, in dollars, from selling x tickets is given by P(x)= 50x − 0.25x2. Using this model, what is the maximum profit the tour operator can expect?

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Answers •1

Quadratic Functions

12/02/14

The height s, in feet, of a rock thrown upward at an initial speed of 64 ft/s from a cliff 49 ft above an ocean beach is given by the function

The height s, in feet, of a rock thrown upward at an initial speed of 64 ft/s from a cliff 49 ft above an ocean beach is given by the function s(t) = −16t2 + 64t + 49, where t is the time in... more

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Exponential Growth

11/29/14

Population of E. Coli

The organism E. coli is a common bacterium. Under certain conditions it undergoes cell division approximately each 20 minutes. During cell division, each cell divides into two cells. Express the... more

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Word Problems

11/29/14

Word Problem

The profit of an organization is calculated by the function P(x)=x squared - 4000x + 780000, where x is the number of units sold. If the net profit is 3800000, find the number of item sold.

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Answers •1

Algebra 2

11/16/14

Solve the word problem

you have 84 feet of fencing to enclose a rectangular region. Find the dimensions of the rectangle that maximize the enclosed area. to solve use the quadratic function's minimum or maximum... more

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Calculus

11/15/14

Prove that there is no line through the point (1,2) that is tangent to the curve y=4-x^2

the derivative or the slope to the function or the function for the tangent line is -2x, using the power rule....however I understand that first(1,2) and (x,4-x^2) are similar..i.e if the graph... more

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Answers •2

Systems Of Equations

11/08/14

Write a system of equations the Shelby and Calvin could use to determine how many ounces they need to pour from each flask to make their solution.

Shelby and Calvin are doing a chemistry experiment. They need 5 ounces of a solution that is 65% acid and 35% distilled water. There is no undiluted acid in the chemistry lab, but they do have two... more

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Slope Equation

11/06/14

Write an equation of the line that passes though point P and is parallel to the line with the given equation.

P(-7,-4), y=16 and P(-2,1),10x+4y=-8

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Precalculus

11/06/14

complex zeros and factored form

x4 +10x3 -2x2 +90x-99 find the complex zeros and put into factored form

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Answers •1

Precalculus

11/06/14

complex zeros and factored form

x3 - 5x2 +17x-13 find the complex zeros and put it into factored form

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Answers •2

Word Problem Distance Distance Problem

11/01/14

Word problem - pre calc

If An island is 2.8 kilometers from the nearest point, P, on a straight shoreline. A town is 6.3 kilometers down the shore from Point P. If a person can row a boat at an average speed of 4.1... more

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Money Math Percentages

10/24/14

A student spent 60% of her money on books andspent 1/3 of the remainder on notebooks. She had $30 left. How much money did the student have at first?

Follows • 3

Answers •2

A rocket accelerates at 25m/s^2 for 5s before it runs out of fuel and dies. What is the maximum height reached by the rocket?

A musician released 12 albums. Company wants to release 5 in a box set. How many different box sets are possible?

What is The actual speed (along the road) of the red car for the measurement feet per second?

Physics: latent heat of fusion

Excluding stoppages the speed of a bus is 54km/hr and including stoppages it is 45km/hr. For how many minutes does the bus stop per hour.

Allison replaced 100-watt fixture with 15-watt fixture

consider Cu(s)+4HNO3(aq)-->Cu(NO3)2(aq)+2NO2(g)+2H20(l)

Physics projectile question.

Find sin 2x, cos 2x, and tan 2x from the given information: sin x = -5/13 , x in Quadrant III, sin 2x = cos 2x = tan 2x =

Use an Addition or Subtraction Formula to find the exact value of the expression: cos 255°

How many different values are possible for the random variable X

Mercury orbits the sun with an average speed of 4.78 x 104 m/s. About how long does Mercury take to orbit the sun once if the radius of its almost circular orbi

Find two numbers whose difference is 16 and whose product is a minimum. (Enter your answers as a comma-separated list.)

A tour operator believes that the profit P, in dollars, from selling x tickets is given by

The height s, in feet, of a rock thrown upward at an initial speed of 64 ft/s from a cliff 49 ft above an ocean beach is given by the function

Population of E. Coli

Word Problem

Solve the word problem

Prove that there is no line through the point (1,2) that is tangent to the curve y=4-x^2

Write a system of equations the Shelby and Calvin could use to determine how many ounces they need to pour from each flask to make their solution.

Write an equation of the line that passes though point P and is parallel to the line with the given equation.

complex zeros and factored form

complex zeros and factored form

Word problem - pre calc

A student spent 60% of her money on books andspent 1/3 of the remainder on notebooks. She had $30 left. How much money did the student have at first?

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