Mark J.

Use Lagrange multipliers to find the indicated extremum. Assume that x and y are positive.Minimize f(x,y)= x^2-y^2Constraint: x-10y+198=0Find the minimum of f(x,y)= ______ at (x,y)= (_______)

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Math

11/09/19

Of a squirrel's hidden nuts, for every 5 that get found, there are 3 that do not get found. A squirrel hid 40 nuts all together

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Calculus

11/08/19

A ball is shot from the ground straight up into the air with initial velocity of 41 ft/sec. Assuming that the air resistance can be ignored, how high does it go?Hint:The acceleration due to gravity... more

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Math

11/08/19

How can you find the area of a triangle with only 3 coordinate points?

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Math Algebra Radicals

11/08/19

Rationalize the denominator (√2+√5)/(√3-√7).

Rationalize the denominator (√2+√5)/(√3-√7).I got this as the answer, - (√2+√5)(√3+√7)/(4). Is this correct or do I have to multiply it using the foil method and get this? -(√6+√14+√15+√35))/(4).... more

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Math

11/08/19

math probability

wwhat is the probability a card drawn from a deck of 52 is a 10?

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Math

11/08/19

A particular computer takes 12 minutes to download a 48-minute TV show. How long will it take the computer to download a 2-hour movie?

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Algebra 1

11/07/19

Systems of linear equations

Rabbits in a lab are to be kept on a strict daily diet that includes 25 g of protein, 22 g of fat, and 40 g of carbohydrates. The scientist has only three food mixes available with the following... more

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Algebra 2

11/06/19

Im stuck on an equation in my math class help is needed if possible

To Build the garden of your dreams you need 18 meters cubes of soil containing 50% silt. You have two types of soil you can combine to achieve this: soil with 10% silt and pure silt. How much of... more

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Calculus

11/05/19

Find the dimensions that minimize cost if the box has a volume of 45 cubic feet.

A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $5 per square foot and the metal for the sides costs $10 per square foot.... more

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Math

11/04/19

College Algebra Proportions

The distance to your sister's house is 259 miles, and the distance to the beach is 444 miles. If it took 7 hours to drive to your sister's house, how long would you estimate the drive to the beach... more

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Math

11/04/19

Given that y and x are directly proportional and y=2 when x=7, find the value of y when x=17.5.

Given that y and x are directly proportional andy=2 when x=7, find the value of y when x=17.5.

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Science Physics

11/04/19

help me set this up

A meter stick has a 300 g mass at the 0 cm mark and a 30 g at the 100 cm mark. If the meter stick has a mass of 120 g, how far from the 0 cm mark should a fulcrum be placed to balance the meter... more

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Math

11/04/19

Of a squirrel’s hidden nuts, for every 5 that get found, there are 3 that do not get found. A squirrel hid 40 nuts all together. How many of the nuts do not get found.

No explanation needed

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How do i calculate the worth of something bought

Solve equation, giving exact solutions which lie in [0, 2pi): tan2(x)=1-sec(x)

If sin(θ)=−4/5, and θ is in Quadrant III, then what is sin(θ/2)?