Sunday

August 2, 2015

August 2, 2015

**Geometry, Help**

Help? I'm stuck. For each graph, find (a)AB to the nearest tenth and (b)the coordinates of the midpoint of AB. 1. Coordinates are A(-9, -6) B(6,6) 2.A(-2,-2) B(8,-6) 3. A(0,3) B(-2,-2)
*Tuesday, August 20, 2013 by Unknown*

**Geometry, Help**

1. Reasoning How does the Distance Formula ensure that the distance between two different points is positive? 2. There are two different formulas for midpoint. Is it possible to use the formula for midpoint "on a number line" when you are trying to find the midpoint...
*Monday, August 19, 2013 by Unknown*

**math - geometry**

Austin wants to sketch the graph of a circle represented by the given equation. (x - 4)2 + (y + 7)2 = 64 Using complete sentences, describe the steps used to sketch the circle on a coordinate grid
*Monday, August 19, 2013 by kris*

**geometry**

Suppose ABCD is a trapezoid with parallel sides AB and CD that has four points E,F,G and H tangent to the inscribed circle Γ on sides AB,BC,CD, and AD, respectively. If AE=2,BE=3, and the radius of Γ is 12, what is the length of CD?
*Monday, August 19, 2013 by Anonymous*

**geometry**

ABCDEF is a regular hexagon. Square ABXY is constructed on the outside of the hexagon. Let M be the midpoint of DX. What is the measure (in degrees) of ∠CMD?
*Monday, August 19, 2013 by Anonymous*

**Math Geometry**

Starting from the point (0,0), a grasshopper makes a series of leaps on the coordinate plane. The grasshopper's first leap takes her to (3,4). After a move which adds (x,y) to the grasshopper's coordinates, her next move adds either (x,y-1) or (x-1,y) to her ...
*Sunday, August 18, 2013 by mathemagiacian*

**geometry**

find the area of the rhombus (0.9m and 1.2m
*Friday, August 16, 2013 by jacquerin*

**Geometry**

A person standing h feet above sea level can seecd miles to the horizon. The distance r is the radius of the earth = 3963 miles. d is the tangent to the circle forming a right angle to the radius. h + r is the tangent. Solve using Pythagorean theorem and secant-tangent theorem...
*Thursday, August 15, 2013 by Loki*

**Geometry**

Help. PT=5x+3 and TQ=7x-9 Find the value of PT
*Thursday, August 15, 2013 by Vanessa*

**ADVANCED AMC8 GEOMETRY QUESTION/MATH**

Let S be a subset of {1, 2, 3,... 100}, containing 50 elements. How many such sets have the property that every two numbers in S have a common divisor that is greater than 1? I really need help. Give me a good explanation with he answer. Thanks!!! :)
*Thursday, August 15, 2013 by mathemagiacian*

**ADVANCED AMC8 GEOMETRY QUESTION/MATH**

In a chess variant, a "lord" can move one space at a time, either upward, or to the right, or diagonally upward and to the right. How many ways are there for a lord to move from the bottom left to top right corner of the 8 by 8 chessboard? This seems like a really ...
*Thursday, August 15, 2013 by mathemagiacian*

**Geometry**

The coordinates of the vertices of a quadrilateral are R(-1,3) S(3,3) T(5,-1), and U(-2,-1).Find the perimeter of the quadrilateral. Round to the nearest tenth.
*Wednesday, August 14, 2013 by Jalea*

**Geometry MATH CHECK**

Check? In your own words, explain why we use the formula AB = |a - b| to find the distance of a segment. Include why you need to subtract and why you need to take the absolute value. We use that formula |a-b| because a and b are representing coodinate numbers you need to ...
*Wednesday, August 14, 2013 by Vanessa*

**Geometry**

How would you do this? Rs=8y St=4y+8 RT=115y-9 a.Find the value of y b. Find rs, st, rt
*Wednesday, August 14, 2013 by Vanessa*

**Geometry**

Help? 1. In your own words, explain why we use the formula AB = |a - b| to find the distance of a segment. Include why you need to subtract and why you need to take the absolute value. 2. Compare and Contrast Describe the difference between saying that two segments are ...
*Wednesday, August 14, 2013 by Vanessa*

**ADVANCED AMC8 GEOMETRY QUESTION/MATH**

An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic centimeters in the volume of the cone? Express your answer to the nearest whole number, without units. I just want the answer. Thanks! :)
*Friday, August 9, 2013 by mathemagiacian*

**geometry**

Martin's iPod has 24 songs on it. He wants to make a playlist consisting of three songs to dance to. Let N be the number of different playlists Martin can make. What are the last 3 digits of N?
*Friday, August 9, 2013 by Anonymous*

**Geometry **

If the distance from the top of a building to the tip of its shadow is 150 feet and the sun makes a 75 degree angle with the wall as shown in the image below, what is the length of the shadow?
*Thursday, August 8, 2013 by Elizabeth *

**Geometry**

Two marbles are sitting side by side in a glass container.b the base of the container is 10 units long and the radius of the smaller marble is 2 units. What is the radius of the larger marble? Describe the strategy used to answer the question.
*Thursday, August 8, 2013 by Loki*

**ADVANCED AMC8 GEOMETRY QUESTION/MATH**

An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic centimeters in the volume of the cone? Express your answer to the nearest whole number, without units. I really need help on this. I want the answer. Thanks!
*Thursday, August 8, 2013 by mathemagiacian*

**geometry**

RS=8y+4 ST=4y+8 RT=15y-9 a.) what is the value of y? b.)find RS, ST, AND RT
*Wednesday, August 7, 2013 by Erin*

**Chemistry**

What is the Lewis structure formula, electron pair geometry and the molecular geometry for SO4^2-
*Wednesday, August 7, 2013 by rose*

**Chemistry**

What is the electron pair geometry for NCL3?
*Wednesday, August 7, 2013 by mariana*

**Chemistry**

What is the electron pair geometry for NCL3?
*Wednesday, August 7, 2013 by mariana*

**GEOMETRY MATH QUESTION**

Four cubes of volumes 1cm^3, 8cm^3, 27cm^3, and 125cm^3 are glued together at their faces. What is the number of square centimeters in the smallest possible surface area of the resulting solid figure? I want a clear explanation with the answer. :):) thanks!
*Tuesday, August 6, 2013 by mathemagiacian*

**Math (Geometry)**

1. A rhombus has an area of 5 square meters and a length of 3 meters. In a similar rhombus, the length of a side is 9 meters. What is the area of the second rhombus? [Area= diagonal1 X diagonal2 / 2]
*Tuesday, August 6, 2013 by Josh*

**geometry**

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next foot)? A. 8 square feet ...
*Tuesday, August 6, 2013 by DD Girl*

**Math Geometry**

Four circles of unit radius are drawn with centers (1,0), (-1,0), (0,1), and (0,-1). A circle with radius 2 is drawn with the origin as its center. What is the area of all points which are contained in an odd number of these 5 circles? (Express your answer in the form "a ...
*Saturday, August 3, 2013 by 3.1415926...*

**Math, Geometry**

A square and an equilateral triangle have equal perimeters. The area of the triangle is 2\sqrt {3} square inches. What is the number of inches in the length of the diagonal of the square? Please give me a full clear explanation with the answer. Thanks!!!!!!!
*Friday, August 2, 2013 by ?????????*

**Geometry**

Point Y lies on line segment XZ, between X and Z. The (x,y) coordinates for X and Z are (7,2) and (-3,-3), respectively. If the ratio of line segment XY to line segment YZ is 2 to 3, what are the (x,y) coordinates of Y?
*Wednesday, July 31, 2013 by Anonymous*

**Geometry**

he chart below shows the names of all the tools that Valerie used to construct an acute angle. Tools used 1) Paper 2) Pencil 3) Compass Which statement best explains why Valerie’s construction may be inaccurate?
*Monday, July 29, 2013 by D'Angelo*

**geometry**

consider a circle of radius 1, and corresponding inscribed and circumscribed polygons with the number of sides n = 3, 4, 5, 6, and 8. A: For each n = 3, 4, 5, 6 & 8, what are the areas of the inscribed and circumscribed polygons with n sides?
*Saturday, July 27, 2013 by Rachel*

**geometry**

consider a circle of radius 1, and corresponding inscribed and circumscribed polygons with the number of sides n = 3, 4, 5, 6, and 8. A: For each n = 3, 4, 5, 6 & 8, what are the areas of the inscribed and circumscribed polygons with n sides?
*Saturday, July 27, 2013 by james*

**Geometry**

find the slope of the lines passing through the points. (6,-2), (1,3).
*Saturday, July 27, 2013 by Chelsey*

**Geometry**

1. AB has endpoints A(8,K) and B(7,3). The slope of AB is 5. What is K? 2. Two angles of a triangle measure 68 and 54. What is the measure of the third angle?
*Saturday, July 27, 2013 by Chelsey*

**geometry**

P(6,6)y=2/3x
*Saturday, July 27, 2013 by chelsey*

**Geometry**

ABC is an obtuse triangle with m<A=21 and <C is acute. a)What is m<B+m<c? B)What is the range of whole numbers for m<C? C)What is the range of whole numbers for m<B?
*Friday, July 26, 2013 by Chelsey*

**Geometry**

<1 and <2 are vertical angles. If m<1=4x and m<2=56. What is the value of x?
*Friday, July 26, 2013 by chelsey*

**Geometry**

a rectangular swimming pool has an area of double 1500ft. The rectangular pool is 50ft. The rectangular walkway that surrounds the pool is 4ft. How many feet of fencing do you need to surround the walkway?
*Friday, July 26, 2013 by chelsey*

**geometry**

<1 and <2 are vertical angles. If m<1=63 and m<2=4x-9 what is the value of 9.
*Friday, July 26, 2013 by chelsey*

**Geometry**

<1 and <2 are same side interior angles formed by two parallel lines a transversal. If m<1=115, what is m<2?
*Thursday, July 25, 2013 by Chelsey*

**geometry**

prove that every every line segment has one and only one end point . use euclids geometry to prove
*Thursday, July 25, 2013 by dipti*

**Geometry**

A map has a scale of 1 inches equals 60 miles. What is the actual distance, in miles, between two cities that are 2 1/4 inches apart on the map?
*Tuesday, July 23, 2013 by Sherri*

**geometry**

Name the slope and a point on Y-3= -2(x=5)than graph the line
*Tuesday, July 23, 2013 by chelsey allen*

**geometry**

Name the slope and y-intercept of Y=2x-1 then graph the line
*Tuesday, July 23, 2013 by chelsey allen*

**geometry**

A cross country race course on flat ground has runners heading from point A for 3.5 km on a bearing of 047degT to point B. From point B they turn and run for 2.8 km on a bearing of 342degT to point C. They then run back to point A. Determine the Distance from C back to A.
*Monday, July 22, 2013 by Amanda*

**GEOMETRY **

A cylindrical tank if 8 ft. in diameter and 20 ft tall. how many gallons of paint are needed to paint the tank if one gallon covers 200 sq ft ? and a cylindrical hole with diameter 8 inches is cut through a cube 10 in. on a side. find the surface area of this solid HOW PLEASE...
*Sunday, July 21, 2013 by Johaann*

**GEOMETRY **

A 4x7 rectangle can be rotated about the long side to generate a cylinder. It also can be rotated about the short side to generate a cylinder. Find the lateral area and surface area of the 2 cylinders . PLEASE HOW. TELL ME
*Sunday, July 21, 2013 by Leila*

**geometry**

ABCD is a square. P is a point inside the square, such that AP:BP:CP=1:2:3. What is the value (in degree) of angle APB?
*Saturday, July 20, 2013 by debjit*

**geometry**

Ryan’s teacher asked him to graph circle E with equation (x – 5)2 + y2 = 25. Below is the graph he submitted. Circle E that contains points 30, 0; 5, negative 25; negative 20, 0; 5, 25. What, if anything, did Ryan do wrong when graphing this equation?
*Saturday, July 20, 2013 by leroy*

**Geometry**

The area of a rectangle is 72 square inches and the perimeter is 44 inches. Find its dimensions.
*Friday, July 19, 2013 by Anonymous*

**geometry**

Find the area of the quadrilateral in Exam Figure 5. Round your answer to two decimal places.
*Thursday, July 18, 2013 by g*

**geometry**

Given that AB is a tangent of the circle with the center at X, AB = 12, and XD = 2.5, which is the length of DB?
*Wednesday, July 17, 2013 by jesus *

**geometry **

Determine the value of x for which a || b if m<3=10x and m<5=12-25 . 100 125 12.5 2.5
*Monday, July 15, 2013 by knowel*

**Calculus**

Evaluate the integral below by interpreting it in terms of areas. In other words, draw a picture of the region the integral represents, and find the area using geometry. ç6 −6 36−x^2dx
*Monday, July 15, 2013 by Robin*

**geometry**

If the area and perimeter of a right triangle are 30 cm2 and 30 cm, respectively, what is the length of the hypotenuse (the side opposite the right angle)?
*Sunday, July 14, 2013 by amin*

**GEOMETRY(SURFACE AREA)**

find the surface area of a square pyramid with s=4.2 cm and h=7cm( slant height)
*Sunday, July 14, 2013 by dull*

**GEOMETRY (SA oftriangular pyramid)**

Find the surface area of a triangular pyramid with b =4 cm, h= 8.2 cm and s = 7 cm. PLEASE. How ? GEOMETRY (SA oftriangular pyramid) - MathMate, Sunday, July 14, 2013 at 8:41am Lateral surface area =perimeter of base * apothem /2 =3b*s/2 (for a regular pyramid with a ...
*Sunday, July 14, 2013 by dull*

**GEOMETRY(SURFACE AREA)**

Find the surface area and the lateral area of a regular square pyramid with base edge 6 and a lateral edge √34. PLEASE PLEASE HUHU Teach me how and what is lateral edge
*Sunday, July 14, 2013 by Laarni*

**GEOMETRY (SA oftriangular pyramid)**

Find the surface area of a triangular pyramid with b =4 cm, h= 8.2 cm and s = 7 cm. PLEASE. How ?
*Sunday, July 14, 2013 by Lloini*

**analytic geometry**

The segment joining (-1,4), (2,-2) is extended three times its own length. Find the terminal points.
*Sunday, July 14, 2013 by lex*

**geometry**

tan (?) = 3.5
*Saturday, July 13, 2013 by Nathalie *

**Geometry**

ABCD is a square. If one side of the square measures 2x – 5 inches and the other side measures x + 8 inches, find x.
*Friday, July 12, 2013 by Anonymous*

**math ,geometry**

John is building a fence that is 6 feet high and 18 feet wide to put around his garden. He has two sizes of boards that he can use. One is 2 feet by 6 feet and the other is 4 feet by 6 feet. John can put the boards either horizontally or vertically and he has lots of boards of...
*Thursday, July 11, 2013 by GT*

**Geometry, Help**

Compare and Contrast Describe the difference between saying that two segments are congruent and saying that two segments have equal length. When would you use each phrase?
*Wednesday, July 10, 2013 by Unknown*

**Geometry**

1.Explain why we use the formula AB = |a - b| to find the distance of a segment. Include why you need to subtract and why you need to take the absolute value. The formula for finding vector AB is AB = b - a where a and b are the position vectors OA and OB respectively then the...
*Wednesday, July 10, 2013 by Unknown*

**Geometry**

I have two post that meet the ground perpendicular and the ground is level. One post is 40 feet high, the other is 25 feet high. If I draw a hypotenuse from the top of one post to the base of the other post and another hypotenuse from the top of the other post to the base of ...
*Tuesday, July 9, 2013 by Josh*

**Math Geometry**

a shipping crate carrying e readers has a length of 19 1/3 feet, a width of 7/23 feet, and a height of 7 5/6 feet. Whaat is the volume of the shipping crate? Show your work. i know V=lwh , but I'm getting the wrong answer! Please help. I got 58/3 x 23/3 x 47/6 = 62.698/54=...
*Tuesday, July 9, 2013 by andra *

**Math Geometry**

a shipping crate carrying e readers has a length of 19 1/3 feet, a width of 7/23 feet, and a height of 7 5/6 feet. Whaat is the volume of the shipping crate? Show your work. i know V=lwh , but I'm getting the wrong answer! Please help.
*Tuesday, July 9, 2013 by andra *

**GEOMETRY **

2. IF EACH SIDE OF AN OPEN CUBICLE BOX IS 2X+3 CM. FIND ITS TOTAL SURFACE AREA.
*Tuesday, July 9, 2013 by Mia*

**GEOMETRY LATERAL AND SURFACE URGENT (PLEASEHELP)**

1.A RECTANGULAR BOX IS TO BE PAINTED ON ALL ITS SIDES. IF THE BOX IS 15 DM LONG, 12 DM WIDE AND 6 DM HIGH. HOW MUCH SURFACE IS TO BE PAINTED ? 2. IF EACH SIDE OF AN OPEN CUBICLE BOX IS 2X+3 CM. FIND ITS TOTAL SURFACE AREA. 3. MICHEAL IS TO MAKE A BOX IN THE FORM OF A ...
*Tuesday, July 9, 2013 by Mia*

**geometry**

you have 30yd2 of carpet. you want to install carpeting in room that is 20ft long and 15ft wide, do you have enough carpet? explain?
*Monday, July 8, 2013 by Ronnie*

**Geometry**

For the given dimensions, find the area of each figure. If necessary round to the nearest hundredth. 1.Rectangle with base 4m and height 2cm. 2. Square with side length 3.5 in. 3. Circle with diameter 9cm.
*Monday, July 8, 2013 by Ronnie*

**Math (Geometry)**

In triangle ABC, ∠A=20∘ and ∠B=80∘. Let D be a point on line segment AB such that AD=BC. What is the measure (in degrees) of ∠ADC?
*Sunday, July 7, 2013 by Drake*

**Geometry**

the sketch of if AM is not = MY, then M is not the midpoint of segment AY.
*Saturday, June 29, 2013 by Ryla*

**geometry **

Which of the following translations corresponds to the matrix ? a A segment is shifted 2 units up and 3 units to the left. b A triangle is shifted 2 units to the right and 3 units down. c A segment is shifted 2 units to the right and 3 units down. d A triangle is shifted 2 ...
*Friday, June 28, 2013 by Anonymous*

**geometry**

if a scale factor of four is used, the points in the image will be eight times as far from the origin as at he pre-image points true or false
*Friday, June 28, 2013 by Barb*

**geometry**

In step 4 of the construction of a perpendicular line through a point, why must the compass point be placed on the points where the arc intersects with the original line? How would the construction be different if the compass point were placed at random points on the original ...
*Wednesday, June 26, 2013 by janet*

**geometry**

a boy stands 1 meter away from a lamppost. he is 1.8 meters tall and casts a shadow 2 meters long in the light from the lamp. how tall is the lamppost?
*Tuesday, June 25, 2013 by savanna*

**geometry**

How to draw line segment CF and to draw a ray CD perpendicular to line segment CF.
*Monday, June 24, 2013 by josh*

**geometry**

if the sides of a triangle are 8 cm, 10 cm, and 12 cm then find the length of altitude to the smaller side.
*Monday, June 24, 2013 by jaspreet*

**geometry**

ABC is a triangle with AC=139 and BC=178. Points D and E are the midpoints of BC and ACrespectively. Given that AD and BE are perpendicular to each other, what is the length of AB?
*Monday, June 24, 2013 by stranger*

**geometry (help steve)**

A circle of radius 1 is drawn in the plane. Four non-overlapping circles each of radius 1, are drawn (externally) tangential to the original circle. An angle γis chosen uniformly at random in the interval [0,2π). The probability that a half ray drawn from ...
*Monday, June 24, 2013 by stranger*

**geometry**

A smooth partition of the integer n is a set of positive integers a1,a2,…ak such that 1. k is a positive integer, 2. a1≤a2≤⋯≤ak, 3. ∑ki=1ai=n, and 4. ak−a1≤1. Determine how many smooth partitions there are of the integer 250.
*Thursday, June 20, 2013 by Anonymous*

**Applied Geometry maths**

A Maths Applied student holidaying in Sydney notices that the Centrepoint tower has an angle of elevation of 15deg20'. After walking 400m directly towards the tower she now observes the elevation to be 24deg33'
*Wednesday, June 19, 2013 by Mandy*

**geometry**

Triangle ABC is similar to triangle DEF. The sides of ABC are 5,8 and 11. What is the length of the shorttest side of DEF if its perimeter is 60?
*Tuesday, June 18, 2013 by mily*

**maths (geometry)**

decide whether the statement is true or false, A line has length and breadth
*Tuesday, June 18, 2013 by osa*

**geometry**

A preimage includes a line segment of length x and slope m. If the preimage is dilated by a scale factor of n, what are the length and slope of the corresponding line segment in the image
*Tuesday, June 18, 2013 by ELIJAH*

**MATH**

Complete Problem 34 in Section 5.2 Exercises (Ch. 5) of Essentials of Geometry for College Students. 34. Given: ABC,/ AD bisects <BAC, and /AE=/ED Prove: AE/AC = BD/BC
*Monday, June 17, 2013 by BJ*

**Geometry**

A. Derive the distance formula (d) shown below for points A = (x1, y1) and B = (x2, y2). 2 2 1 2 2 1 d = (x − x ) + ( y − y ) Note: Look for an application of the Pythagorean theorem where the red line, segment AB, is the hypotenuse of a right triangle. You can ...
*Monday, June 17, 2013 by Charlie*

**Geometry**

Find the minimum possible value of 2cos4θ+8cos3θ+32cos2θ+56cosθ+100
*Sunday, June 16, 2013 by Abhishek Ranjan*

**Geometry**

A diver is currently at the surface of the water out at sea. If he descends into the ocean at an angle of depression of 32 degrees, what will be his depth to the nearest tenth of a foot after swimming for 5 minutes
*Saturday, June 15, 2013 by Darren*

**grid problem (geometry)**

The squares of a 2×60 chessboard are coloured black and white in the standard alternating pattern. At random, exactly half of the black squares are removed from the board. The expected number of white squares that have no neighbours after this process can be expressed as...
*Saturday, June 15, 2013 by john*

**geometry**

If RS=ST=19, s<r and t=7, find s and r.
*Thursday, June 13, 2013 by savannah*

**Geometry**

In a certain game, a player throws a standard 6-sided number cube twice per turn. What is the probability that the result of the first throw will be a 1, and the result of the second throw will be greater than 3?
*Thursday, June 13, 2013 by DaMarkus*

**GEOMETRY BETWEENNESS URGENT !! **

POINTS H, I , AND J ARE THREE POINTS ON A LINE WITH COORDINATES -4/5, -1/SQRT5 AND -1/10. WHICH POINT IS BETWEEN THE OTHER TWO ?
*Thursday, June 13, 2013 by Jeyna*

**GEOMETRY I BEG YOU PLEASE HUHUHU **

Points w,h and y and three points on a line with coordinates -2/3, 5/12, -sqrt of 7 / 6 . which point is between the other two ?
*Wednesday, June 12, 2013 by ANGEL *

** PLEASEEE GEOMETRY **

POINT H,I,J AND THREE POINTS ON A LINE W/ COORDINATE -4/5 , -1/SQRT5 AND -1/10. WHICH POINT BETWEEN THE OTHER TWO ?
*Wednesday, June 12, 2013 by ANGEL *

**geometry**

Which of the following statements is true?Select one of the options below as your answer:A. A 25o angle is congruent to a 25o angle. B. Two intersecting lines form two pairs of congruent angles. C. It is possible for congruent angles to add up to 90o. D. All of the above are ...
*Wednesday, June 12, 2013 by Madison*

**GEOMETRY **

POINTS M,N, AND O ARE 3 POINTS ON A LINE WITH COORDINATE 5, 2 SQUARE ROOT OF 5 AND 3 SQUARE ROOT OF 2 RESPECTIVELY, WHICH POINT IS BETWEEN THE OTHER TWO ?
*Wednesday, June 12, 2013 by ANGEL *