I', really stuck on this one HW question: I have to show how dC/dt = (D * (d^2C/dx^2)) + P at steady state (so when cD/dt =0) equals: (d^2C/dz^2) + (Pa^2/D...

I', really stuck on this one HW question: I have to show how dC/dt = (D * (d^2C/dx^2)) + P at steady state (so when cD/dt =0) equals: (d^2C/dz^2) + (Pa^2/D...

A 20% solution of NaCl in H2O is diluted, by adding distilled water, to a final concentration of 6% NaCl. A 20% solution of NaCl in H2O is diluted, by adding distilled water, to a final concentration...

A 24% w/v stock solution of NaCl is diluted with water according to a 1:10 dilution ratio, then again by a 5:6 dilution ratio. a) Determine the overall dilution ratio (in lowest terms) performed:...

A math tutor charges $2020 per hour. Let c be the total charge (in dollars) for t hours of tutoring. Are t and c linearly related? If so, find the slope and describe what it means in this situation...

A flower bed is in the shape of a triangle with one side twice the length of the shortest side and the third side is 25 feet more than the length of the shortest side. Find the dimensions if the perimeter...

A=(1 1 2 2 2 1 2 1 3 2 1 2 1 4 3 1 3 0 4 2) Determine the pivot entries of the matrix and use this to decide...

Melanie invests a total of $7,500 in two accounts. The first account earned a rate of return of 14% (after a year). However, the second account suffered a 8% loss in the same time period. At the end...

Mitch throws a baseball straight up in the air from a cliff that's 48 ft high. The initial velocity is 48 ft per second. The height (in feet)of the object after t second is given by h(t) = -16t^2...

Sequence A counts down from 46 by 7: 46, 39, 32 and so on. Sequence B counts down from one number (not 46) by another number (not 7). In sequence B, the second number is 35, the sixth number is 23,...

A physician orders 400000 units morphine I.V. p.r.n. The available stock is in a vial containing 2000000 units. The reconstitution instructions state to "dilute to 2000000 mg/10mL using 8.2mL...

The following drug order is given: Demerol 125 mg IM b.i.d. for 7 days. There is a vial of medication on hand that contains 500 mg of Demerol with the following reconstitution instructions: "Reconstitute...

The following drug order is given: Synthroid 0.3 mg p.o. b.i.d. to regulate thyroid function. The pills on hand are 100 mcg pre-scored Synthroid tablets, which can be split in half as needed. ii)...

y ___ 7y^2+17y+6

A certain drug is made from 2 ingredients.Compound A and Compound B. There are 3 milliliters of compound A used for every 5 milliliters of compound B. If a chemist wants to make 704 milliliters of...

Two angles are supplementary. One angle is 15 degrees less than twice the other angle.

You need to rent a moving truck for two days. Rider Moving Trucks charges $50 per day and $.50 per mile. UMove Trucks charges $45 per day and $0.75 per mile. Write an equation describing each...

suppose r varies directly as the square of m, and inversely as s. If r =19 when m=6 and s=4, find r when m=24 and s=4

compare it with the degree measure and include the origin, applications, benefits or drawbacks.

A set of data values is normally distributed with a mean of 50 and a standard deviation of 55. Give the standard score and approximate percentile for a data value of 43

help show the work

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