09/30/23

Find all values of c such that f'(c) does not exist
Find all values of c such that f'(c) does not existUsing the function f(x)= (x+7)2/5Find all values of c such that f'(c) does not existc=?
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09/30/23

I need help solving this (
The solution set of the linear system:w-3x+4y-3z=-5-w+8x-4y+18z=15may be written as{v1+sv2+tv3} for some vectors v1, v2 and v3. Find v1, v2 and v3 using that equation
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09/30/23

differential equations

When interest is compounded continuously, the amount of money increases at a rate proportional to the amount S present at time t, that is, dS/dt = rS, where r is the annual rate of interest.(a)Find... more
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09/30/23

differential equation
A thermometer is removed from a room where the temperature is 70° F and is taken outside, where the air temperature is 20° F. After one-half minute the thermometer reads 50° F. What is the reading... more
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09/29/23

Rational Expressions
Solve the proportion. Give your answer as a reduced fraction.( 3 / 6x + 3 ) = ( 9 / x + 4)
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09/29/23

Calculus Question
If  z^2=x^2+y^2,dx/dt=8,  and  dy/dt=5,  find  dz/dt  when  x=5  and  y=2
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09/29/23

Linear equation or system of equations?
Joe’s Java Joint wants to sell a specialty holiday coffee blend that is a blend of their medium roast coffee which costs $8 per pound, and a flavored coffee which normally costs $16 per pound. If... more
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09/29/23

Please help with this problem
Suppose oil spills from a ruptured tanker and spreads in a circular pattern. If the radius of the oil spill increases at a constant rate of 2.5 m/s. How fast is the area of the spill increasing... more
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09/29/23

I need to write a two-column proof given angle 1 and angle 2 are supplementary and angle 1 and angle 3 are congruent . I have to prove angle 2 and angle 3 are supplementary .
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09/28/23

Let f(x) = e^x-1 + 5ln(x) +3x. You may assume f(x) is one-to-one. What is f^-1(4)?
Let f(x) = ex-1 + 5ln(x) +3x. You may assume f(x) is one-to-one.What is f-1(4)?f-1(4)= ?
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09/27/23

Differentiation Rules (Product)
For the following exercises, assume that f(x) and g(x) are both differentiable functions with values as given in the following table. Use the following table to calculate the following... more
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09/27/23

Find dy/dx or y' by implicit differentiation. Write the solution of each answers

1. x³y³ = 3xyAnswer: (y-x²y³)/(x³y²-x)2. x²+2y³+3xy =2x²+y³ +3y²Answer: (4x-y²-3y)/(2xy+3y²+3x-6y)
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09/27/23

10.lim h-->0 (x+h)²-x²/ h h-->0
1. lim (x+h)²-x²/ h h-->0
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09/26/23

help solve this
Damian has a points card for a movie theater. He receives 20 rewards points just for signing up. He earns 12.5 points for each visit to the movie theater. He needs 195 points for a free movie... more
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09/26/23

I need help with this problem!
Find the linear equation of the plane through the point (1,2,3) and contain the line represented by the vector equation r(t)= <3t, 5-4t, 1-8t)My answer was: 16x+14y+5z=59, but it is wrong. I... more
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09/26/23

how do I answer this question, what is the solution?
Find the equation of the line in standard form that passes through the following points. Eliminate any fractions and simplify your answer. (-9, 11) and (4,-12)
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09/25/23

Tangent line problem

For what values of x in [x,2pi] does the graph of r(x)=x+2sinx have a horizontal tangent?
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09/25/23

Derivative rule problem

Given a power function of the form u(s)=as^n with u'(2)=20 and u'(6)=540, find n and a.
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09/25/23

What is the equation of the line in slope-intercept form that passes through point (3, −2) and is parallel to the line y = 2x + 4? Show all necessary steps.
What is the equation of the line in slope-intercept form that passes through point (3, −2) and is parallel to the line y = 2x + 4? Show all necessary steps.
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09/24/23

Piecewise Functions

A privately owned parking lot is open 12 hours each day. It charges a $5 fee to park plus $3/hr up to 4 hours and $2/hr after 4 hours and up to 12 hours. The charges are proportional. For example,... more
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09/24/23

Consider the function f(x)= ln(|x-4|)
Consider the function f(x)= ln(|x-4|). Where are the discontinuities located and identify the type or types of discontinuity?f is discontinuous at x =?
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09/24/23

Suppose that f: R --> R is a continuous function, satisfying f(1)= 4
Suppose that f: R --> R is a continuous function, satisfying f(1)= 4What is the value of the limit lim x->1 f(x)?lim x->1 f(x)= ?
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09/22/23

Matrices can behave quite differently from real numbers.

Matrices can behave quite differently from real numbers. It is possible that for square matrices A and B, the matrix product AB is not equal to the product BA. When they do happen to be equal, we... more
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09/22/23

second derivative question s(t) = t3 + 2t2 + 4t + 1 Find a(t)
Consider the following where s is in feet and t is in seconds.s(t) = t^3 + 2t^2 + 4t + 1 Find a(t)
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09/21/23

Find domain and range
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