Sunday

July 24, 2016
Number of results: 117,847

**Algebra**

Identify the triangle PQR as isosceles ( two sides equal length) equilateral (three sides of equal length) a right triangle, or a scalene triangle (three sides of different length)
*September 18, 2011 by Amanda*

**Math**

The length of the hypotenuse of a right triangle is 2m more than the longer leg. The longer leg is 7m longer than the shorter leg. Find the perimeter of the triangle. ( please explain as you go)
*March 31, 2016 by Julia*

**science**

three point electric charges q,2q,4q are placed at the three vertices of an equilateral triangle inscribed in a circle. find the net elect ric field at the centre of the triangle. answer : I think the answer is( 910^9 q√10)/r^2 ,where r is the radius of circle
*May 4, 2016 by shivansh*

**CALCULUS **

a. for y= sinx y=0 and x=pie/2 if each cross section is an equilateral triangle perpindicular to the x axis what is the total area? b.also same question except triangles are perpindicular to y axis answer's are appreciated but i need the work more.
*February 3, 2011 by Little*

**calculus**

Find the area bounded by {y=x2−4 y=4−x2 sketch the region described determine any intersection point(s) for the curves (show work!!) write out the integral(s) that will calculate the area determine the area (may use a calculator)
*October 3, 2013 by Will*

**physics**

From the edge of the rooftop of a building, a boy throws a stone at an angle 30.0 above the horizontal. The stone hits the ground 4.10 s later, 112 m away from the base of the building. (Ignore air resistance.) (a) Find the initial velocity of the stone. magnitude _____ ...
*February 14, 2010 by jenn*

**Calc**

Consider the Dosage Formula y=(S/1.73 where y = childfs dosage, a = the adult dosage, and S = the surface area of the body in square meters. The Surface Area Formula is S(w,h)=0.0101w^(.425)*h^(.725) where S = the surface area of the body in square meters, w = the weight in ...
*February 16, 2012 by Fatih*

**MATH HELP PLEASE!!**

1. Mandy kept track of the trade-in value of a collectors coin for several months through February of this year. She determined the line of best fit for the data was y = 4x + 12, where y is the trade-in value, in dollars, x months after February of this year. According to the...
*May 23, 2014 by kelsey *

**calculus(Lab)**

Well, first graph the graph of f(x)=-1/10x^2 + 3 2. We are going to approximate the area between f and the x-axis from x = 0 to x = 4 using rectangles (the method of Riemann sums). This is not the entire area in the first quadrant, just most of it. Draw four inscribed ...
*January 25, 2012 by Yoona*

**PLEASE HELP TANGENTS AND CIRCLES PROBLEM GEOMETRY**

PLEASE HELP I REALLY NEED HELP. Each of the three circles in the figure below is externally tangent to the other two, and each side of the triangle is tangent to two of the circles. If each circle has radius three, then find the perimeter of the triangle. The figure is ...
*February 2, 2013 by Knights*

**math**

A right circular cone stands on a hemisphere. The base radius of the cone is equal to the radius of the hemisphere. If the base radius of the cone is 10 centimeters and its height is 15 centimeters,calculate the total volume of the solid.
*January 6, 2016 by Dennis*

**Chemistry**

Use the Bronsted-Lowry definitions to identify the two conjugate acid-base pairs in the following acid-base reaction: H20 + H20 <-> H30^+ + OH^- Let's see what you think on this after the previous post. Just remember, the acid is the one that HAS the H and the base is ...
*May 26, 2007 by Raj*

**pre-calc**

a farmer wants to make a rectangular enclosure using a wall as one side and 120 m of fencing for the other three sides. a) express the area in terms of x and state the domain of the area function b)find the value of x that gives the greatest area. my teacher didn't explain how...
*October 1, 2007 by INEEDHELP!!!*

**physics**

A 66.0 kg base runner begins his slide into second base when he is moving at a speed of 4 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to ...
*October 4, 2008 by Sandhya*

**Physics**

A 67.0 kg base runner begins his slide into second base when moving at a speed of 3.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. How much mechanical energy is lost due to friction ...
*November 14, 2010 by Marcus*

**Physics**

A 69-kg base runner begins his slide into second base when he is moving at a speed of 3.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to ...
*May 3, 2013 by Abdul A.*

**Physics**

A 69-kg base runner begins his slide into second base when he is moving at a speed of 3.7 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to ...
*May 7, 2013 by Abdalla A.*

**Physics **

A 66.0 kg base runner begins his slide into second base when moving at a speed of 4.4 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to friction...
*October 25, 2014 by Caitlin *

**Maths-Vectors Assistance PLZZ!**

Prove that the vectors u=3i+j-2k , v= -i+3j=4k, and w=4i-2j-6k can form the sides of a triangle They will form a triangle if they are linearly dependent, that is, if (3,1,-2)= m(-1,3,4) + n(4,-2,-6) from which we get 3 equations in two unknowns. -m + 4n = 3 #1 3m - 2n = 1 #2 ...
*April 16, 2007 by Babanla*

**geometry**

Given: AC perpendicular BD and AB congruent CB. Prove AD congruent CD. It is a kite figure. I need statements and reasons. Problem states Plan: prove triangle ABE congruent CBE. The use congruent corresponding parts AE and CE to show right triangle AED congruent CED. AD and CD...
*April 10, 2015 by eric*

**math**

The base of a rectangular prism is 6 inches - 9 inches. what is the lateral area of the prism
*July 16, 2014 by hannah*

**Math**

Water is flowing into a trough at a rate of 100 cubic centimeters per second. The trough has a length of 3 meters and cross sections in the form of a trapezoid, whose height is 50 cm, whose lower base is 25 cm and whose upper base is 1 meter. At what rate is the water rising ...
*May 12, 2014 by Hao*

**GEOMETRY**

Which statement is contrapositive of the conditional: If a triangle is isosceles, then it has 2 congruent sides. 1. If a triangle does not have 2 congruent sides, then it is not isosceles. 2. If a triangle is isosceles, then it does not have 2 congruent sides. 3. If a triangle...
*February 20, 2012 by Tyler*

**differential calculus**

a right circular cylinder has a fixed height of 6 units. Find the ratio of change of its volume(v) with respect to the radius(r) of its base.
*July 27, 2011 by wen*

**differential calculus**

a right circular cylinder has a fixed height of 6 units. Find the ratio of change of its volume(v) with respect to the radius(r) of its base.
*July 27, 2011 by wen*

**math (check please)**

find the volume of a square pyramid with a base length of 9cm and a height of 4cm. ANSWER: 108 cm^3 (is it right?)
*March 20, 2014 by luna*

**Math**

A man owns a rectangular piece of land. The land is divided into four rectangular pieces, known as Region A, Region B, Region C, and Region D. One day his daughter, Nancy, asked him, what is the area of our land? The father replied: I will only tell you that the area of Region...
*May 7, 2014 by Josh*

**math**

What do they mean when they say given angle and given side of a triangle???? I dont get this
*May 30, 2011 by Traveling Girl*

**Help!!!!!!!!!**

Calculate Triangle G, free energy change, that occurs when 12g of Shila react with excess And at 298k according to the following reaction: N2(g)+3H2(g)<======>2NH3(g) Triangle G=-34KJ/mole
*December 19, 2012 by Lost Girl!!*

**math,trigonometry**

solve each triangle described below using Δ ABC : 1)a = 10, A = 16, B = 49 2)a = 8, b = 7, A = 88 I dont know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz help) this topic is Oblique triangle
*January 5, 2015 by Anonymous*

**4th grade**

what is the formula to find the area of a garden lot.
*March 23, 2010 by towonna*

**algebra equation**

How do I find a formula for the area of a circle with a circumference c?
*September 16, 2010 by mike*

**math**

what is the formula used to find the area of a composite figure
*March 30, 2011 by paskelly*

**maths --plse help me..**

can we prove the formula to find the area of an octagon
*December 22, 2012 by Anonymous*

**algebra 1**

how do you find the area or geometric sequence of the explicit formula
*April 10, 2015 by Dakota Rodriguez*

**Geometry**

the area in a circle of each shaded region is given. Find x The given is 66 the angle is 180
*March 31, 2011 by shannon*

**interesting log problem**

log base 2n 1944 = log base n (486* (2)^1/2) find n^6
*December 12, 2010 by maya*

**Math**

1. Find the value of Sin^-1(-1/2) a. -30 degrees b. 30 degrees c. 150 degrees d. 330 degrees 2. Find the exact value of cos(-420 degrees) a. -1/2 b. 1/2 c. sqrt of 3/2 d. -sqrt of 3/2 3. p(-9/41, 40/41) is located on the unit circle. Find sin theta. a. 40/41 b. -9/41 c. -9/40 ...
*April 5, 2008 by Belden*

**geomitry**

the first angle of a triangle is complementry to the third angle. the second angle is 16 degrees less than five times the first angle. find the measure of the largest angle of the triangle.
*January 20, 2011 by gabriel*

**geometry**

in a triangle the middle length side is 3 more than the shortest side, and the longest side is double the middle lenght side the perimeter of the triangle is 45cm find the lenghts of the side
*February 15, 2011 by Anonymous*

**math**

A wire is stretched from the ground to the top of an antenna tower. The wire is 20 feet long. The height of the tower is 4 feet greater than the distance from the tower's base to the end of the wire. Find the height of the tower. 20 ft.= w x.4 = height of tower something like ...
*September 25, 2008 by jennifer*

**Geometry **

A right cylinder has a radius of 2 feet and a height of 5 feet. Find the surface area of the cylinder. What formula should I be using ? My answer should be 28pi ft^2 I didn't get this using 2pi.h + 2pir^2
*May 25, 2011 by Mary *

**science**

Calculate the Molar Enthalpy of Neutralization (Hn) in kJ/mol of the reaction between a monoprotic acid and a monoprotic base, given the following information: The temperature change equals 5.30C, 50.0 mL of 1.00 M concentration of Acid 50.0 mL of 1.00 M concentration of ...
*November 17, 2013 by brittany sheats*

**Math**

Two triangles are similar. The measure of the shortest side of the first triangle is 12 and the measure of the shortest side of the second triangle is 5. If the longest side of the first triangle measures 15, what is the measure of the longest side of the second triangle? A.2....
*January 3, 2010 by S *

**math**

Can someone please help me with the following problems Determine if the triple numbers are can be sides of a right triangle? sqrt(10)sqrt(13)sqrt(23) The length of thy hypotenuse of a right triangle equals the length of one of legs of the triangle A) always true B) sometimes ...
*May 22, 2010 by Nicole*

**geometry**

The sum of the lengths of the sides of triangle ABC is 25 in. The lengths of sides AB and BC are 9 inches and 8 inches. Find the length of side AC and classify the triangle.
*March 15, 2011 by Portia*

**Algebra 2 ..**

Simplify. 1. (1/log base 3 of 60)+ (1/log base 4 of 60)+ (1/log base 5 of 60) 2. (log base 16 of x)+ ( log base 4 of x) + (log base 2 of x)=7
*April 21, 2013 by Anonymous*

**Geometry **

A triangle is enlarged by a factor of 3. The perimeter of the new triangle is 36 feet. What could be the lengths of the sides of the original triangle? A. 3 feet, 4 feet, and 5 feet B. 1.5 feet, 1.25 foot, and 1.25 foot C. 2 feet, 0.5 feet, and 1.8 feet D. 4 feet, 4 feet, and ...
*March 2, 2014 by anon*

**physics,plz.....give me answer as soon as possible**

a pond of water filled with water apto 60m. 1)write formulato find the pressure of water exerted on the base of pond. 2)calculate the pressure exerted by the water on the base of pond?density of water is 1000kg/m3 3)half of the water was removed from the pond.what could be the...
*November 24, 2010 by sweetie*

**College Algebra**

You have 100yds. of fencing to enclose a rectangular area. Find the dimensions which maximize the area. What is the maximum area? I know that A=L times W. I know that 100 = 2L+2w Subtract 2L from both sides: 100-2L=2W Divide by two: 50-L=W Substitute in original equation: A=LW...
*March 15, 2011 by Brooklyn*

**ap calculus**

The height s of a ball, in feet, thrown with an initial velocity of 112 feet per second from an initial height of 6 feet is given as a function of time t (in seconds) by s(t)=-16t^2+112t+20. 1. What is the maximum height of the ball? 2. At what time does the maximum height ...
*September 18, 2009 by muffy*

**Math**

A base ball diamond is square. The distance from home plate to first base is 90 feet. In feet, what is the distance from home plate to second base? (1 point) 127 81 19 13
*October 2, 2012 by Sunbird*

**Math**

Brilli the ant has a block of cheese that is in the shape of an equilateral triangle. She is hosting a party, and has invited her two-legged house mates. She insists that all of her guests get a piece of cheese that is in the shape of an isosceles triangle. What is the maximal...
*July 15, 2013 by Mark*

**Math**

Brilli the ant has a block of cheese that is in the shape of an equilateral triangle. She is hosting a party, and has invited her two-legged house mates. She insists that all of her guests get a piece of cheese that is in the shape of an isosceles triangle. What is the maximal...
*July 16, 2013 by Mark*

**Algebra II**

The shape of a supporting arch can be modeled by h(x)= -0.03^2+3x, where h(x) represents the height of the arch and x represents the horizontal distance from one end of the base of the arch in meters. Find the maximum height of the arch.
*March 1, 2008 by Jon*

**science**

the ph of a 0.280m solution of a weak base. B has been measured ph --8.69. using this information. calculate the base ionisationconstant kbof b
*September 14, 2012 by Emily*

**Chemistry**

Aniline, C6H5NH2, is a weak base. If the hydroxide ion concentration of a 0.223 M solution is 9.7 10-6 M, what is the ionization constant for the base?
*May 1, 2014 by John*

**Chemistry**

Aniline, C6H5NH2, is a weak base. If the hydroxide ion concentration of a 0.201 M solution is 9.2 10-6 M, what is the ionization constant for the base?
*May 5, 2014 by Harry*

**physics**

What is the velocity of a baseball thrown 40m from third base to first base in 1.9s? Show your work, and simplify please.
*October 28, 2014 by Sabrina*

**Physics HELP!**

A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to ...
*October 5, 2012 by Samm*

**Physics HELP!**

A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to ...
*October 7, 2012 by Anonymous*

**Physics**

A 85.0 kg base runner begins his slide into second base when he is moving at a speed of 2.10 m/s. The coefficient of friction between his clothes and Earth is 0.570. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to ...
*October 7, 2012 by Anonymous*

**College Math**

12 base 5 divide by 4021 base 5
*December 11, 2007 by Pumpkin*

**chemistry**

The pH of a 1.2 M solution of an unknown weak base is 10.65. What is the Kb for the base?
*February 19, 2010 by rodrigue*

**Base **

Write the numeral in base ten. 130five
*March 14, 2010 by Tyga*

**Calculus**

"Differentiate x^(x^3)" I can do it when the base is a number, but I'm confused as to how to do it with x as the base.
*June 18, 2010 by Stuck*

**science**

A 0.513 M solution of a weak base has a pH of 11.4. What is the Kb of the base?
*September 9, 2010 by Martha*

**math**

Base 10 gets me so confused. How to convert 40 to base 2
*November 8, 2010 by m*

**math**

multiply in the indicated base the base is 9 503 x 67
*July 14, 2011 by Anonymous*

**Number Systems**

Convert 103 base 16 to base 10.
*October 6, 2011 by Adam*

**BIOLOGY**

b) Make a single base pair substitution mutation in the gene below that results in a protein that is shorter than the protein produce by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a "single base pair ...
*November 17, 2013 by youlifex*

**trigonometry**

Solution of problem: An electric post was broken by a strong typhoon .it rmed a right triangle with the ground.If a broken part makes an angle of 25 degrees with other part and the topmost part of the post which on the ground is 40 feet from the base ,how tall was the post?
*September 17, 2012 by Anonymous*

**statics**

One force of 10k going NEtowards a point(A) at an angle of 40 degrees another force (F2) going SE from pt(a) at slope of 3,4,5 triangle and F1 horizontal going W towards pt (a) find F1 and F2 i was using force triangle but got off track wasn't able to get two forces can anyone...
*March 27, 2010 by stacey graham*

**maths**

The angle of elevation and angle of depression of the top and base of a mobile tower from a mobile handset are 60 degree and 30 degree respectively. If the distances of the top and the base of the tower from the mobile handset are 15m and 8m respectively, find the height of ...
*December 11, 2015 by keya*

**Physics**

The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the center? (Diagram shows equilateral triangle with 500g masses at each point, the...
*November 14, 2011 by Please Help!*

**Chemistry**

I don't understand how to work out the volumes of weak acid and strong base to mix to make 1L of buffer when given the concentrations of weak acid and strong base (in my case 0.160M NaOH and 0.200M H3PO4) and the pH required (7.00). Specifically the textbook is Fundamentals of...
*March 30, 2008 by Sarah*

**Chemistry**

I don't understand how to work out the volumes of weak acid and strong base to mix to make 1L of buffer when given the concentrations of weak acid and strong base (in my case 0.160M NaOH and 0.200M H3PO4) and the pH required (7.00). Specifically the textbook is Fundamentals of...
*March 30, 2008 by Sarah*

**Chemistry**

When given the pressure and force of a system, how should the pressure formula be rearranged to solve for area?
*August 8, 2010 by Jarred*

**maths**

a hemisphericalbowl of diameter 14cm mounted on a bucket inform of frustrum of a cone if the base diametre of the bucket is 7cm and total hieght is 21cm calculate the total surface area
*September 6, 2008 by john*

**Geometry**

The Z company specializes in caring for zebras. They want to make a 3-dimensional "Z" to put in front of their company headquarters. The "Z" is 15 inches thick and the perimeter of the base is 390 inches. What is the lateral surface area of this "Z"?
*March 12, 2013 by Eddie*

**math**

a rectangle is twice as long as it is wide. if both of its dimensions are increased by 4m, its area is increased by 88m^2 find the dimensions of the original rectangle Original rectangle = w for width and 2w for length. Area = w x 2w Larger rectangle = w+4 for width and 2w+4 ...
*November 29, 2006 by samantha*

**Math**

The dimensions of Mrs. Singleton's square garden are dilated using a scale factor of 3. What is the relationship between the area of the new garden and the old garden? A. The are of the new garden is nine times the area of the original garden B. The area of the new garden is 1...
*January 7, 2013 by Andrew*

**Math ~ Check Answers ~**

A rectangular prism has a width of 92 ft and a volume of 240 ft^3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, if necessary. 3.8 ft^3 60 ft^3 <<<<<< 15 ft^3 10.4 ft^3 A pyramid has a height of 5 in. and a surface...
*March 12, 2014 by Chlo*

**Math- help finishing **

A right triangle has an area of 84 ftand a hypotenuse 25 ft long. What are the lengths of its two sides? Ive gotten this far: 25^2= a^2+b^2 a=25-b 84= ab/2 168= 25b-b^2 b^2-25b+168=0 I then use the quad. formlua to solve for b... but I get an error. Can someone help me?
*December 8, 2010 by Lindsay*

**maths**

The width of a rectangular photograph is 5cm more than the height. The area is 80cm squared. Find the height of the photograph.
*April 20, 2010 by nabiha*

**maths**

The width of a rectangular photograph is 5cm more than the height. The area is 80cm squared. Find the height of the photograph.
*April 20, 2010 by nabiha*

**math**

I need to find the A small b, C small b, slant height, and surface area of a cone. The height is 9.2 and radius is 5.6. Please help
*May 16, 2013 by Hannah*

**Geometry**

Reiny, according to this problem(one side of a triangle is x inches longer than another side. The ray bisecting the angle formed by these sides divides the opposite side into 3-inch and 5-inch segments. Find the perimeter of the triangle in terms of x), you said that a+x+a+8= ...
*January 10, 2012 by Anonymous*

**math plz help my last chance to do this homework**

a) write an expression in simplest form for the perimeter of each triangle. b)write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller triangle.
*May 25, 2016 by sarah*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*

**math calculus **

. Folding a Pyramid - A pyramid with a square base and four faces, each in the shape of an isosceles triangle, is made by cutting away four triangles from a square piece of cardboard and bending up the resulting triangles to form the walls of the pyramid. What is the largest ...
*December 3, 2012 by Paige*