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Geometry and Topology

Using Differentials to Estimate

1. In the manufacturing process, ball bearings must be made with radius of 0.5mm, with a maximum error in the radius of +/- 0.016 mm. Estimate the maximum error in the volume of the ball bearing. Solution: The formula for the volumen of the sphere is _____. If an error deltaR is made in measuring the radius of the sphere


Question 11A Guest needs material to finish a room in a basement. The room is square and one wall measures 15'. The height of the room is 8'. There is one door that measures 3' wide and 7' high, and two windows that measure 3' wide and 4' high. The Guest is covering the walls with 1x6 carsiding (we will say that it covers 5"

Inductive Reasoning to Predict Numbers

Glenda Everson Math 1002 Practice Problems 1. Use inductive reasoning to predict the next three numbers in the pattern (or sequence). 4, −20, 100, −500, . . . Step 1: Form a Hypothesis: Step 2: Make observations related to the hypothesis: Step 3: Come to a conclusion: 2. Flying West New York City is on easter

real dimensions shapes

Math Assignment Directions: If you are using Microsoft® Word 2007 and plan to insert equations into this document using Equation Editor, go to the Insert tab, click Object, and select Equation Editor 3.0. Equation Editor allows you to easily insert equations into this document. 1. A cylindrical hockey puck is 1 in. high a

PQR and ABA Angle Geometry

1. Use the following figure to find out the following. [Please refer to the attachment for the figure and questions] 2. Angle PQR and Angle ABC are complementary angles and Angle PQR is eight times as large as Angle ABC. Determine the measure of each angle. Please show all work step by step. 3. A recreation room has the f

Rational Expressions and Simplifying Fractions

Week Four Assignment - Ch. 5 Cumulative Test Problems 5.1 22) 34) 46) 5.2 20) 36) 46) 5.3 28) 34) 42) 5.4 56) 60) 70) 5.5 32) 52) 70) 5.6 20) Science and medicine. A small business jet took 1 h

Solving a Mathematical Modelling Problem

Suppose that the lift force F (M L T-2) on a missile depends on characteristic length scales D (L) and r (L) of the missile. Additionally, F may depend on the air density ρ (M L-3), the viscosity µ (M L-1 T-1) and missile velocity v (L T-1) . a) Develop a model for the lift force F. b) Find two other possibili

Validity of the arguments by using Euler Circles

Truth tables are related to Euler circles. Arguments in the form of Euler circles can be translated into statements using the basic connectives and the negation as follows: Let p be "The object belongs to set A." Let q be "the object belongs to set B." All A is B is equivalent to p -> q No A is B is equivalent to p -> ~q

Calculating Perimeters and Areas

1. An ecology center wants to set up an experimental garden using 300m of fencing to enclose a rectangular area of 5000 . Find the dimensions of the garden. 2. A landscape architect has included a rectangular flown bed measuring 9ft by 5ft in her plans for a new building. She wants to use two colors of flowers in the bed, on

Open Sets, Connectivity and Continuous Functions

3. a) Let M be a connected topological space and let f : M ---> R be continuous. Pick m1,m2 2 M and suppose that f(m1) < f(m2). Let x 2 R be such that f(m1) < x < f(m2). Show that there is m M with f(m) = x. (Hint: Use a connectedness argument.) b) Give R1 the usual product topology as the product of infinite copies of the rea

Three-Dimensional Topological Group

Please help with the following problem. Let M = SL(2) be the set of 2 × 2 matrices with unit determinant. Show that, when regarded as a subset of R4 under ( a b ) ( c d ) <--> (a, b, c, d) Exists R4 and equipped with subspace topology, SL(2) becomes a 3-dimensional topological group. That is, show that (i) SL(2) is a g


Using the shell method to find volume generated when the region bounded by y=5x, x=0, and y=20 is revolved about the y axis.

Real-Life Activities Involving Congruent Objects

Out of class activities that I could employ to make students aware of congruent objects could be: - running - playing soccer - drawing pictures in the school yard Hoe does running and playing soccer make students aware of congruent objects?

Mean, Median, Mode, Tables, Pictographs and Bar Graphs

Find the median of each set of numbers. 14. 1, 4, 9, 15, 25, 36 Find the mode of each set of numbers. 18. 41, 43, 56, 67, 69, 72 20. 9, 8, 10, 9, 9, 10, 8 Solve the following applications. 24. Statistics. A salesperson drove 238, 159, 87, 163, and 198 miles (mi) on a 5-day trip. What was the mean number of mil


Consider a regular tetrahedron with vertices: (0,0,0) , (k,k,0) , (k,0,k) , and (0,k,k) a) sketch the graph of the tetrahedron b) find the length of each edge c) find the angle between any two edges d) Find the angle between the line segments from the centroid ( k/2, k/2, k/2) to two vertices.

Find the Length of Base of a Square Pyramid

Suppose a pyramid has a retangular base whose width is 5 centimeters less than its length. If the height is 1 centimeter and the volume is 12 cubic centimeters, find the length of the base. (V=1/3Bh)

Radians and circles

1. Find the area of a sector having a central angle of 60° in a circle of radius 8 inches. 2. Find the perimeter and area of a circular sector whose angle is 3.5 radians if the circumference of the circle is 58 ft. 3. A point on the wheel of radius 10 feet moves with a linear velocity of 40 feet per second. Find the angul

Volume formula

See attached The volume of a solid sphere of radius r is given by the equation V=(4/3)pir^2. Derive this equation by using either the disk or shell method for finding the volume of a solid of revolution.


See attached The deck of a sailboat is made up of 2 intersecting parabolas with dimensions as shown below. Find the area of the deck.

Find the volume.

Find the volume of the solid bounded by the surface z= xsquareroot(x^2 + y) and the planes x=0, x=1, y=0, y=1, z=0


If the length is 5 inches longer than the width.. the area is 84 in^2, what are the dimensions of the object?

GCF and area

How do you feel about mathematics now that you have completed MAT 115? Describe some coping mechanisms you developed in MAT 115 that you can use for your next math course. Example: Find the GCF of 24 and 18 Example: Calculate the area of a circle that has a radius of 8 cm (use 3.14 for pi). Example: Calculate the area o


Will you give insight as to how I can grasp the concepts of angles?