Write up a formal proof that the angle bisectors of a triangle are concurrent, and that the point of concurrency (the incenter) is equidistant from all three sides.

Problem: A bottle is shaped with a right cone placed on top of a right cylinder. The radius of the cone and the cylinder

is 1.5 inches. The height of the cone is 3 inches and the height of the cylinder is 5 inches.

1. Find the volume of the bottle.

2. About how much paper or plastic is needed to make a label for the cylindrical part of your bottle? Explain.

Laplace Question : y''-3y'+2y=4cos2t,y(0)=-2,y'(0)=0

A rectangular area adjacent to a river is to be fenced in, but no fencing is required on the side by the river. The total area to be enclosed is 114,996 square feet. Fencing for the side parallel to the river is $6 per linear foot, and fencing for the other two sides is $7 per linear foot. The four corner posts cost $25 apiece. Let xx be the length of the one the sides perpendicular to the river.

[A] Find a cost equation C(x)C(x):
C(x)=C(x)=    

[B] Find C'(x)C′(x):
C'(x)=C′(x)=    

[C] Find the appropriate critical value(s) for the appropriate domain in the context of the problem.
   

[D] Perform the second derivative test to determine if there is an absoulte minimum at the critical value found.
C''(x)=C′′(x)=   

[E] What is the best conclusion regarding an absolute maximum or minimum at this critical value. (MULTIPLE CHOICE)

a) At the critical value C''(x)>0C′′(x)>0 so I can conclude that there is a local/relative maximum there but I can't conculde anything about an absolute maximum for x>0x>0

b) Since C''(x)>0C′′(x)>0 for all x>0x>0 we can colude that the CC is concave up for all values of x>0x>0 and that we therefore have an absolute minimum at the critical value for x>0x>0

c) Since C''(x)>0C′′(x)>0 for all x>0x>0 we can colude that the CC is concave up for all values of x>0x>0 and that we therefore have an absolute maximum at the critical value for x>0x>0

d) The second derivative test is inclusive with regards to an absolute maximum or minimum and the first derivative test should be performed

e) At the critical value C''(x)>0C′′(x)>0 so I can conclude that there is a local/relative minimum there but I can't conculde anything about an absolute minimum for x>0x>0

[F] Find the minimum cost to build the enclosure: $

*Please show all work associated*

Use the Intermediate Value Theorem and the Mean Value Theorem to prove that the equation cos (x) = -10x has exactly one real root.

Not permitted to use words like "Nope", "Why?", or "aerkewmwrt".

Will be glad if you can help me with this question, will like to add some of your points to the one I have already summed up.. Thanks

Find an equation of the tangent plane to the surface x5+5z2ey−x=848 at point P=(3, 4, 11e√).

(Use symbolic notation and fractions where needed. Your answer should be in the form ax+by+cz=1.)

Use the Trapezoidal Rule, the Midpoint Rule, and Simpson's Rule to approximate the given integral with the specified value of n. (Round your answers to six decimal places.)

dx,    n = 4

1) Find the Taylor series (to second order terms) of the function f(x,y) = x^2 −4x + y + 9 around the point x = 3, y = −1.

2)Explain why the corresponding Taylor Series (to third order terms) will be the same as the second-order series.

y''(t)+(x+y)^2*y(t)=sin(x*t+y*t)-sin(x*t-y*t), y(0)=0, y'(0)=0, x and y are real numbers

Find the first 3 nonzero terms of the Maclaurin series for the function and the values for which the series converges absolutely.

f(x)= x^4 * e^x^2

give a) Domain b) VA c) HA* d) OA* e) y-int f) x-int for each

2) f(x) = 4 /3x - 9

3) g(x) = (x -1)(x + 4) /(x + 1)(x - 5)

4) h(x) = x ^2 + 4x/ x + 6

5) j(x) = x ^2 - 4 /(x + 2)(x - 3)

A typical thickness for a sheet of paper is 0.004 inches. If you fold a sheet of paper once, the thickness of
the folded paper will double to a value of 0.008 inches. A second fold will result in a folded thickness of
0.016 inches. Create a spreadsheet that shows the number of folds from 0 to 50 and the resulting
thickness of each fold. Calculate the resulting thickness in units of inches, feet, and miles.

The base of a solid is the segment of the parabola y² = 12x cut off by the latus rectum. A section of the solid perpendicular to the axis of the parabola is a square. Find its volume.

The value of the cumulative standardized normal distribution at Z is 0.8925. Calculate the value of Z.

Vectors in the plan.

Define scalar product and explain the relationship between scalar product defined by coordinates respectively at lengths and angles between vectors.

Significance of the scalar product sign.

The determinant of a vector pair.