08/26/19

How many miles per gallon does Jessica's car get during the entire 20-mile trip?
On her 10-mile trip to school. Jessica's car gets 50mpg of gas. On her way home, her car gets 40mpg. How many miles per gallon does Jessica's car get during the entire 20-mile trip?
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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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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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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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07/18/19

Related Rate (Calculus)
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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07/12/19

What is the percent by mass of C2H3O2
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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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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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07/11/19

A force of 15N is applied for .5 seconds. What is the impulse?
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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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07/11/19

What are the ordered pairs for y=2x+5 (,-9)
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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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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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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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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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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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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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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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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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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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07/10/19

F(x)=2x^2+5/(x-2)
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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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07/10/19

based off laws of exponents why does 2^x+3 and 8(2^x) have a relationship between graphs ?
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07/09/19

Related Rates Problem
A 18 ft ladder leans against a wall. The bottom of the ladder is 4 ft from the wall at time 𝑡=0 and slides away from the wall at a rate of 3 ft/sec. Find the velocity of the top of the ladder at... more
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07/09/19

Solving a word problem using quadratic equation with rational roots
the area of a rectangle is 50m^2, and the length of the rectangle is 5 m less than 3 times the width. Find the dimensions of the rectangle.
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