William W.

07/19/19

Can you find the change in cost C for the given marginal?

Find the change in cost C for the given marginal. Assume that the number of units x increases by 3 from the specified value of x. (Round your answer to two decimal places.)Marginal: dC/dx =... more

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Algebra 1

07/18/19

Math Word Problem

Jesse's Awesome Autos advertised a special sale on cars Dealer cost plus 5%! Quinten and Shapera bought a luxury sedan for $23,727.90. Whats was the dealer's cost?

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Algebra 1

07/18/19

How to solve this problem - Algebra

x + y + z = 30x - y - z = 96x - y + z = -96x = y =z =

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Calculus

07/18/19

A company's revenue from selling x units of an item is given as R=1300x−3x^2. If sales are increasing at the rate of 45 units per day, how rapidly is revenue increasing (in dollars per day) when... more

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Chemistry

07/12/19

What is the percent by mass of C2H3O2

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Geometry

07/12/19

Write the equation of the line that is parallel to the line 7-4x=7y through the point (2,0)

A y=-4/7x+8/7B. Y=-4/7x-8/7C. Y=8/7x-4/7D. Y=-4/7x+7/8

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Geometry

07/12/19

Write the equation of the line that is perpendicular to the line 8y-16=5x through the point (5,-5)

A y=-8/5x-3B. Y=8/5x+3C. Y=-8/5x+3D. Y=8/5x+3

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Physics Modern Physics

07/11/19

A force of 15N is applied for .5 seconds. What is the impulse?

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Math Geometry Trigonometry

07/11/19

The graph of y=f(x) is shown below. Graph y=1/2 f(x) .

the graph (-2,4),(0,0),(2,4) connect the points and that will be the original graph

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Linear Algebra

07/11/19

What are the ordered pairs for y=2x+5 (,-9)

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Statistics

07/11/19

Standard deviation and percentage

The marks in a class were approximately normally distributed. If the mean was 52 with a standard deviation of 5 approximately what percentage of students achieved a mark above average?

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Finite Math

07/11/19

Continual Interest

A promissory note will pay 43000 at maturity 6 years from now. If you pay 24000 for the note now what rate compounded continuously would you earn?

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Science Chemistry

07/11/19

I keep getting a weird number (chem 111)

a gas occupies 56.44L at 2.00 atm and 310 K. if the gas is compressed to 23.52L and the temperature is lowered to 281 K, what is the new pressure?When i work this problem out, I keep getting... more

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Chemistry

07/11/19

solutions chemistry

Answer the following questions about a 15.0 mL CuCl2·2H2O solution that has a 0.125 Mconcentration.A. How many grams of CuCl2·2H2O are present in this solution? (5)mass of CuCl2·2H2O (g):... more

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Chemistry

07/11/19

Chemistry laboratory

Mixing K2SO4 and barium nitrate results in the precipitation of BaSO4. Write a balancedchemical equation for this precipitation reaction. Include the states in your equation. Whatare the spectator... more

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Algebra 1

07/11/19

Graph the exponential function f(x)=2^x. To graph the function, plot the points on the graph with x-values -2, -1, 0, 1, and 2. Next draw the asymptote(s).

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Math Physics

07/10/19

Conservation of Energy 5

A roller coaster begins at 6 m/s at the top of a 25 m hill. Find the velocity at a point 10 m above the bottom of the hill.

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Algebra 2 Trig Values Reference Angles

07/10/19

Radians and Reference angles

How are radian measures more versatile than degree measures? How can reference angles help to quickly identify trig function values?

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Chemistry

07/10/19

How many calories are required to raise the temper ature of a 35.0 g sample of iron from 25 °C to 35 °C? Iron has a specific heat of 0.108 cal/g °C

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Algebra 2

07/10/19

F(x)=2x^2+5/(x-2)

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Trigonometry

07/10/19

Trigonometry Class

A hamster running in a wheel of radius 15cm spins the wheel at 44 revolutions per minutewhat is the angular speed of the wheel in radians/sec?at what linear velocity is the hamster running in cm/sec?

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