03/13/22

Find the derivative of f(x) by using product rule and expanding polynomials

(a) Find the derivative of f(x)=(x2+3)(4x−3) by first expanding the polynomials. Enter the fully simplified expression for f(x) after expanding the polynomials. f(x)=Enter the derivative... more
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10/31/21

Brief Calculus.

Find dx/dt at x = -3 if y = -3x2-2 and dy/dt = -2.dx/dt = ...................
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10/28/21

How to solve dy/dx=y/x using homogeneous equation if the answer is y=Ax where A is a constant?
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10/27/21

Find y as a function of x if :
Find y as a function of x if :y′′′−5y′′−y′+5y=0,y(0)=−4,  y′(0)=−9,  y′′(0)=92. y(x)= ____________
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10/26/21

The area A = πr2 of a circular oil spill changes with the radius. At what rate does the area change with respect to the radius when r = 7 ft?
The area A = πr2 of a circular oil spill changes with the radius. At what rate does the area change with respect to the radius when r = 7 ft?MULTIPLE CHOICE7π ft2/ft49π ft2/ft14π ft2/ft14 ft2/ft
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10/26/21

electrons emitting visible light
What are the possible energy level changes for electrons emitting visible light in the hydrogen atom? Choose all that are correct.n = 6 to n = 3n = 5 to n = 3n = 6 to n = 2n = 3 to n = 1n = 4 to n... more
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10/01/21

Differentiate 2sin^2xcos^2x
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09/30/21

Calculus problem

Let y = 2x^2 + 3x + 2 Find the differential dy when x = 2 and dx = 0.2 ______________Find the differential dy when x = 2 and dx = 0.4 ______________
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09/26/21

Calculate momentum
An electron's wavelength is 3.0×10^−7m. What is its momentum?
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09/09/21

Please help with problem

What are the leading coefficient and degree of the polynomial?-18v + 20v^6 - 10 + 23v^4
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09/09/21

 A company has cost function C(q) = 4000 + 2q dollars and revenue function R(q) = 10q dollars.
 A company has cost function C(q) = 4000 + 2q dollars and revenue function R(q) = 10q dollars.(a) What are the fixed costs for the company?(b) What is the marginal cost?(c) What price is the... more
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06/11/21

Please help and solving with a calculator would be preferable! Thank you !
The life of a radio shack player is normally distributed with a mean of 3.3 years and a standard deviation of 0.8 years. Radio shack guarantees its record players for 2 years. Find the probability... more
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04/23/21

Let x and y be real numbers, with 0 < x < pi/2 and pi/2 < y < pi. sin y = 4/5 and 11sin x + 5cos (y - x) = 3. Find cos y and sin 2x.

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04/23/21

Calculus Problem

Find f(t) if f''(t)=3/sqrt(t) with initial conditions f(4)= -10 and f'(4) = 6 (there is a square root t in the denominator)f(t) = ___
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04/10/21

A radioactive substance decays from 85mg to 22.1mg in years according to the exponential decay model
A radioactive substance decays from 85mg to 22.1mg in years according to the exponential decay model y=ae-bx, where a is the initial amount and y is the amount remaining after years. Find... more
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04/09/21

Air is escaping from a spherical balloon at the rate of 2𝑐𝑚3per minute. How fast is the radius shrinking when the volume is 36𝜋𝑐𝑚3?
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04/01/21

A rectangle has a length of 11 inches and a width of 7 inches whose sides are changing. The length is decreasing by 6 in/sec and the width is shrinking at 5 in/sec.
What is the rate of change of the perimeter ?
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04/01/21

A rectangle has a length of 5 inches and a width of 8 inches whose sides are changing. The length is decreasing by 7 in/sec and the width is shrinking at 3 in/sec.

What is the rate of change of the area?
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04/01/21

The volume of a sphere is decreasing at a constant rate of 225 cubic centimeters per minute. At the instant when the volume of the sphere is 15 cubic centimeters.
What is the rate of change of the surface area of the sphere?
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03/30/21

inverse equations
can anyone help me find the inverse of these 2 equations? Y = 5/x+2 Y= x+1/2+x
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03/30/21

Find the absolute maxima and minima for f(x) on the interval [a, b].
Find the absolute maxima and minima for f(x) on the interval [a, b]f (x) = x3 + x2 − x + 8, [-2,0]absolute maximum    (x,y) =absolute minimum    (x,y) =
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03/30/21

The parabola y=x^2 is changed to the form y=a(x-p)^2+q by translating the parabola 2 units up and 4 units right and expanding it vertically by a factor of 3. What are the values of p, q,a
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03/25/21

Recursive Rule Questions
Write a recursive rule for the sequence.a, b, a+b, a+2b, 2a+3b, 3a+5b,
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03/25/21

Calculus Question

Find the points at which y=f(x)=x9−2x has a global maximum and minimum on the interval 0≤x≤2.4. Round your answers to two decimal places. Global Maximum: (x,y) = (_,_) Global Minimum: (x,y) = (_,_) 
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03/25/21

Homework Question
what number could you put in the blank to create an equation that has two imaginary solutions?x^{2}-4x-5=______
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