Mark J.

06/20/19

i need help fast

Mercedes can download new songs for $1.39 each. Write an equation to show how many songs she can download for $15.00. A.15x = 1.39 B.15 + x = 1.39 C.1.39x = 15 B.1.39 + x = 15

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Algebra 1

06/20/19

Pumping question

An engine pumping at 864 gallons an hour, and is being refilled at 869 gallons per hour. How long before the tank is empty?

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Calculus

06/20/19

Integral calculus

The position vector in the xy plane is [t2,sin(t)]. What is the distance travelled by the particle from x=0 to x=Pie

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Differential Equations

06/20/19

Find the function satisfying the differential equation y' - 2y = -9e^ {-1t} and y(0) = -3?

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Answers •1

Math

06/20/19

I cannot figure out how to set up the problem below,

A major coffee supplier has warehouses in Seattle and San Jose. The coffee supplier receives orders from coffee retailers in Salt Lake City and Reno. The retailer in Salt Lake City needs 400 pounds... more

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Differential Equations

06/20/19

Find the angle between 2x + 3y = 5 & 3x – 2y = 1?

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Answers •1

Differential Equations

06/20/19

How can I get the differential equation from this general solution? I want to find the differential equation which has this general solution: s(t) = a * cos(2t) + bt.

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Answers •1

Differential Equations

06/19/19

Find the differential equations: 8y'' + 10y' - 3y = 0?

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Answers •1

Precalculus Precalculus Homework Help!!!!

06/19/19

Exponential and Logarithmic Equations

ex + 45e−x − 14 = 0solve for x, round to four decimal places.

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Answers •3

Math

06/19/19

Just need some help with a math question.

A cylindrical container has a radius of 0.75 meter and a height of 2 meters. The container is filled with gasoline. The density of gasoline is 750kg/m^3. What is the mass of the gasoline in the... more

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Geometry

06/19/19

How do I find the centroid of the area in the first quadrant bounded by y=x² and y=x³?

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Math

06/19/19

The property tax on a $160,000.00 house is $2,400.00. At this rate, what is the property tax on a house that is $280,000.00?

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Precalculus Precalculus Homework

06/18/19

Exponential and Logarithmic Functions

The rate at which a battery charges is slower the closer the battery is to its maximum charge C0. The time (in hours) required to charge a fully discharged battery to a charge C is given byt = -k... more

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Math Algebra 2

06/18/19

need help solving

How much of a perfume that sells for $15 per ounce should be mixed with a perfume that sells for $35 per ounce to make a 3-oz bottle of perfume that can be sold for $63?

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Math Geometry

06/18/19

A triangle is 7 cm wider than it is tall. The area is 60 cm squared. Find the height and the base.

A triangle is 7 cm wider than it is tall. The area is 60 cm squared2. Find the height and the base.

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Prealgebra Ged

06/18/19

A ballllllllllll

A bouncing ball rebounds to 0.75 of its height on each bounce. the ball was dropped from a height of 30 meters. What would be it’s height for the fifth bounce?

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Math Calculus Integral

06/17/19

r=1/(8cosθ) for −π/2≤θ≤π/2 and r=1. Write an iterated integral in polar coordinates representing the area inside the curve r=1 and to the right of r=1/(8cosθ)

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Answers •1

Differential Equations

06/17/19

IVP differential equations

How would you go about solving a differential equations IVP wheredy/dt= ty - t/y , y(0)=3

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Answers •1

Math Calculus Precalculus

06/16/19

Solve the exponential equation

1. Solve the exponential equation 4x + 2x+1 – 24 = 0

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Answers •2

Math Algebra 2 Finance

06/15/19

Annuities and loans

You want to be able to withdraw 40,000 each year for 15 years. Your account earns 8% interest. How much do you need in your account at the beginning?

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Math Algebra 2 Finance

06/15/19

Annuities and loans

suppose you invest $150 a month for four years into an account earning 9% compound monthly. After 4 years, you leave the money, without making additional deposits, in the account for another 20... more

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Calculus

06/14/19