In: Math
Use LHopital rule to solve.
lim (x-1)^(lnx)
x goes to 1+
In: Math
You need a loan of $140 comma 000 to buy a home. Calculate your monthly payments and total closing costs for each choice below. Briefly discuss how you would decide between the two choices. Choice 1: 15-year fixed rate at 7% with closing costs of $1400 and no points. Choice 2: 15-year fixed rate at 6.5% with closing costs of $1400 and 3 points. What is the monthly payment for choice 1? $ what (Do not round until the final answer. Then round to the nearest cent as needed
In: Math
Give an arc-length paramaterization of the line which is the intersection of the tangent planes of z=x^2+y^3 at (1,-1,0) and (1,2,9)
In: Math
Determine the area inside the first curve but outside the second curve.
r=2sin2θ
r=1
In: Math
A graphing calculator is recommended.
For the limit
lim x → 2 (x3 − 2x + 4) = 8
illustrate the definition by finding the largest possible values of δ that correspond to ε = 0.2 and ε = 0.1. (Round your answers to four decimal places.)
ε = 0.2 | δ = |
ε = 0.1 | δ = |
In: Math
All vectors are in R^ n. Prove the following statements.
a) v·v=||v||2
b) If ||u||2 + ||v||2 = ||u + v||2, then u and v are
orthogonal.
c) (Schwarz inequality) |v · w| ≤ ||v||||w||.
In: Math
A curve c is defined by the parametric equations
x= t^2 y= t^3-4t
a) The curve C has 2 tangent lines at the point (6,0). Find their equations.
b) Find the points on C where the tangent line is vertical and where it is horizontal.
In: Math
13. Minimizing Perimeter: What is the smallest perimeter possible for a rectangle whose area is 36 in2, and what are its dimensions? Also, provide the perimeter and area equations. SHOW WORK.
Perimeter Equation: _________________Area Equation: ___________________
Dimensions (include units): ___________Perimeter (include units):___________
14. Find the linearization L(x) at x = 2 of the function, f(x)=√(x^2+12). SHOW WORK.
Linearization L(x): ______________________
In: Math
You must use limit theory for your answers to this question, results obtained by the algorithms of calculus will not earn credit.
1) The height, ?, in metres, (with ? measured in seconds) of a cricket ball (on being mishit straight upwards) is modelled by the equation:
?(?) = 25? − 5?2
a) Show how to derive an expression for the instantaneous velocity at ? = ? seconds.
Simplify your expression as far as possible.
b) What is the initial velocity?
c) Find the instantaneous velocity when ? = 3
d) What does your answer to part (c) mean?
e) What will be the instantaneous velocity when the cricket ball reaches its maximum
height?
f) What is the maximum height reached by the cricket ball?
In: Math
A gourmet bottled tea drink manufacturer has found that the cost to produce 150 cases of bottled tea is $10,000 while it costs $13,150 to produce 325 cases of bottled tea.
a. Find the linear cost function, C(x) where x is the number of cases of bottled tea.
b. If the revenue function for selling x cases of teach is R(x) = 40x, how much does each case of bottled tea sell for?
c. How many cases of bottled tea do they need to sell each month to break even? Round appropriately. Include correct units.
d. If the profit was $1714, how many cases were sold?
*Please explain how you got the answer and show the work, that would be very helpful!*
In: Math
Evaluate the line integral, where C is the given curve.
C |
xeyzds, Cis the line segment from
(0, 0, 0) to (2, 3, 4)
In: Math
(a) Suppose that f is a polynomial of degree 3 or more. Explain, in your own words, how you would
use real zeros of f to determine the open intervals over which f(x) > 0 or f(x) < 0. Be brief
and precise. In particular, you need to tell how and where the sign of f changes.
(d) Rewrite the expression (cos x)2x in terms of natural base e.
4. Let f(x) = x2 + 5. Find limh-0 f(3+h) - f(3)/h
In: Math
Find the volume of the solid obtained by rotating the region bound by the line x=0 and the curve x=4-y2 about x=-1
In: Math
Imagine you are writing questions for an algebra course. You want to write questions that include finding the zeros of polynomials. To balance the difficulty level of the test’s questions, you decide to include two different types of questions, as described here:
Find two polynomials for the two described questions. Explain how you know each question satisfies the requirements stated. What approach did you use to find these polynomials?
In: Math