07/10/20

Approximate the area of triangle ABC. (Round your answer to one decimal place.)
a = 15.0,     b = 70.0,     c = 60.0.
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07/09/20

Select a function from below options so that if both sides of the equation is multiplied by the function, then the new ODE is exact.
y^2*dx+ (xy+1) dy=0 isSelect a function from below options so that if both sides of the equation is multiplied by the function, then the new ODE is exact.a.) y^(-2)b.) xc.) y^(-1)d.) x/yPlease help
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06/02/20

Question 1 for lulu
The graph of a sinusoidal function intersects its midline at (0,-6)and then has a minimum point at (2.5,-9) Write the formula of the function, where x is entered in radians.
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06/01/20

On a given workday, the rate in tons per hour, at which unprocessed ore arrives
On a given workday, the rate, in tons per hour, at which unprocessee ore arrives at a refinery is modeled by O (t) = 20 + 10 cos (t^2÷25) where t is measured in hours and 0 <= t <= 10. At the... more
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04/24/20

question on differentiation
Ping's iStove Company produces the very popular iStove in a monopolistic market. Demand for his iStoves, and production costs, are given by the following functions:Demand: Q = 1200 − 2P ;   Costs:... more
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04/06/20

quadratic word problem
The distance in feet is modeled by the equation d = - 16x2 + 96x + 112 when a ball is tossed up in the air. To the nearest tenth of a second, how long will it take the ball to reach the ground? 
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04/06/20

determine if this function is odd, even or NEITHER
is 2x^7-x^3+2 an even, odd or neither function?
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03/31/20

Find the differential dy of the given function. (Use "dx" for dx.)
y=x+1/4x-9I got -13/(4x-9)^2 but it got marked wrong. Help?
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03/31/20

Verify that f(x) = sqrt(x) satifies the hypotheses of the mean value theorem (MVT) on the closed interval [9,25] Then find all numbers "c" that satisfy the conclusion of the MVT.

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12/16/19

Find the derivative of the function. y = integral from cos(x) to sin(x) ln(8 + 3v) dv

Find the derivative of the function. y = sin(x) ln(8+3v)dv cos(x)  
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12/16/19

Writing a polynomial function of least degree with four complex zeros.
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11/05/19

application Integration Find area,Find Arc-length,Find surface area, find volume of solid by rotating this curve y axis
Find the area of the region bounded between the graph of the two function y=ln(x-1) and y=x^2-6x+5 when 2<_ x<_5Consider the graph of the function y=4x^2, for 1<_ x<_ 2. Find the value... more
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08/26/19

how fast is the planet traveling around the galaxy in km/hr?

If a planet was located approximately 29 thousand light-years from the center of a galaxy and orbits that center once every 290 million years, how fast is the planet traveling around the galaxy in... more
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06/20/19

How can I find the values of p and q if d/dx(2+sinx/2+cosx)=p+q(sinx+cosx)/(2+cosx)^2?
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06/14/19

If vector OA = 4i + 3j , OB = 6i - 2j , OC = 2i - j , find vector AB,BC and CA and deduce the lengths of the sides of the triangle ABC
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05/11/19

which among the following describes the quantity of motion contained in a body ??
a)Momentumb)Forcec)powerd)acceleration
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05/06/19

GR and my journey to the centre of the Earth?
>> [General Relativity] basically says that the reason you are sticking to the floor right now is that the shortest distance between today and tomorrow is through the center of the... more
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04/27/19

Two canoeists are paddling a canoe. Vector analysis
Two canoeists are paddling on opposite sides of a canoe. One extends her arms out so that the force of 15lbs she exerts is directed backwards at an angle of 22 degrees with the canoe. The other... more
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04/23/19

Dimension cost for a box, Calculus.

An open-top rectangular box is being constructed to hold a volume of 250 in3. The base of the box is made from a material costing 7 cents/in2. The front of the box must be decorated, and will cost... more
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03/22/19

Triangle Area in sine
The perimeter of a triangle ABC is L metres. Find the area of the triangle in terms of L and the triangle’s angles α, β and γ.(Let AB=x. Using the sine rule, first find the other side lengths in... more
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03/22/19

A tank with 1000 liters of water initially contains 4 g of calcium.
A tank with 1000 liters of water initially contains 4 g of calcium. Water with a concentration of 2 mg/L (milligrams/liter) is pumped into the tank at a rate of 1 L/min and the mixture is pumped... more
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03/21/19

Physics box of books question
You have a box of books on the floor that weighs 450 Newtons. You attach a rope to the box at an angle of 45 degrees above the horizontal. If the coefficient of kinetic friction is 0.15 and the... more
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03/21/19

Why does the Taylor series expansion of eiθ equal the expansions of cosθ+isinθ when their 3 graphs look nothing alike?
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03/19/19

I want to know that which twin would be younger in the twin paradox example given & how to calculate their age

.. twin brothers A &B are 20 years old.B set out for a journey to Planet X located 20ly from earth B’s spacecraft is moving with a speed of 0.86c relative to Earth.After return journey from... more
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03/18/19

What does the sky look like to human eyes from orbit?
There are numerous pictures, obviously, of the blackness of space from the shuttle, the space station, and even the moon. But they all suffer from being from the perspective of a camera, which is... more
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