Wednesday

November 25, 2015
Number of results: 109,333

**Geometry **

Triangle ABC is congruent to triangle XYZ . Angle A measures 50 , angle B measures (2x+40) and angle X measures (4x+8) . Find the value of x.
*July 18, 2011 by kim*

**3rd grade**

use the grid. draw two different figures that each have a perimeter of 14. find each area. question 2. draw a figure with the given perimeter of 10 units and 22 units. question 3. explain why it would be important to know the area of a room that new furniyure will be going into.
*March 9, 2010 by Kainalu Mauga*

**Math**

An open box with a square base is to bemade to organize items in the trunk of a car. It is planned to use an area of 16m square of flexible plastic forthis box. What are the dimensions of the box for max volume?
*February 24, 2011 by dd*

**Calculus (Volume of Solids)**

A solid has, as its base, the circular region in the xy-plane bounded by the graph of x^2 + y^2 = 4. Find the volume of the solid if every cross section by a plane perpendicular to the x-axis is a quarter circle with one of its radii in the base.
*March 13, 2012 by Casablanca*

**Chemistry**

my ap chem teacher has been absent for the past two weeks and part of the notes her sub gave us to copy says that In the equation HC2H3O2 + H20 <--> C2H3O2(- charge) + H3O(+ charge) HC2H3O2 is an acid H2O is a base C2H3O2(- charge) is the conjugate base and H3O(+ charge...
*May 15, 2010 by Mark*

**Precalculus**

Combined area of 1680ft^2 for 4 identical rectangular corrals. Corrals are joined together and no fencing at the back wall of the barn. 200=5d+4w 1680=4dw What length will produce the maximum area? d=12 The dimensions of each corral (lxw) is 12'x35' What will be the resulting ...
*October 6, 2012 by Cole*

**Chemistry**

These blanks I REALLLY need your help. Our teacher gave the teaching job to this other I think coop student who wants to be a teacher to teach for a day but I| seriously don't understand anything she said..in short I don't have anyyy clue about this. So please help me:( 1) ...
*March 7, 2013 by Kristien*

**PARALLELOGRAM WRITING A PROOF**

given: segment SV is parallel to segment TU and triangle SVX is congruent to triangle UTX [the figure has a V on the top left corner, U on the top right corner, X in the middle of four triangles inside and S on the bottom left and T on the bottom right] prove VUTS is a ...
*January 8, 2012 by aLEXANDRIA*

**Geometry**

Given triangle ABC, AD bisects angle BAC,and AE=ED Prove AE/AC=BD/BC Because I cant draw it I will explain. Its a triangle, A is the point at the top, B is the point at the bottom left and C is the point at the bottom right.There is a line going right down the middle, which is...
*September 29, 2012 by Teisha*

**calculus**

Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Draw a typical approximating rectangle and label its height and width. y=tan(11x) and y= sin(11x). -pi/33>= x<= pi/33 Then find the area S of the region. (Give an exact ...
*February 12, 2010 by angel*

**chemistry**

write the formula of the conjugate acid for base H2PO
*October 17, 2010 by Dana*

**Circumference and Area of Circles**

can someone help me with these:Find the radius, diameter and circumference of a circle with an area of 64 cm2. Write your answers as decimals rounded to the nearest hundredth. Find the circumference and area of a circle that has a rectangle inscribed inside it with sides that ...
*May 8, 2007 by mike*

**Math**

This is trigonometry: A tree's height is unknown so we have to solve for the height of the tree. The tree casts a 11m shadow. And the angle of the triangle is 36 degrees.
*February 8, 2015 by Izzy*

**Math**

The area of a circle is found with the formula A= 3.14r2 where 3.14 represents 3.14. If a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet what is the approximate radius of the circle in feet?
*October 11, 2013 by Franchesca*

**Math**

Find the shaded area in the following figure if the rectangle inscribed in the circle has dimensions 3 ft x 4 ft. I know I find the area of the rectangle A=l*w, but what do I do next? I know that the Theorem of Pythagoras, 3^2 + 4^2 = d^2. So I can find the radius with this ...
*March 20, 2010 by Anonymous*

**Geometry**

Find the area of the following circle. ( = 3.14; round answer to the nearest whole number). Circumference = 120 cm. (Hint: Find r from C = 2r (round r to tenths); then find area).
*January 16, 2011 by Ivan*

**algebra**

Essay. show all work. A gardener wants to create a triangluar garden in the shape of a right triangle with shortest legth x-3y ft. and the middle length side x+6y ft. What ia an algebraic expression for the area of the garden? be sure to multiply this out and express in ...
*July 22, 2011 by Rocky*

**Physics**

Find the moment of inertia of the following "L" shape about the x-x axis (I sub x) The base of the L shape is 4 inches long and 2 inches high. The vertical column of the L shape is 8 inches high and 2 inches wide. (So the "block L" is 2 inches wide vertically and horizontally...
*September 14, 2013 by Sejul*

**Parallelogram Question Writing a Proof**

given: segment SV is parallel to segment TU and triangle SVX is congruent to triangle UTX [the figure has a V on the top left corner, U on the top right corner, X in the middle of four triangles inside and S on the bottom left and T on the bottom right] prove VUTS is a ...
*January 8, 2012 by aLEXANDRIA*

**Trig**

A billboard rests on top of a base. From a point level with the bottom of the base, the angle of elevation of the bottom of the billboard is 26 degrees and the top of the billboard is 31 degrees. From a point 21 meters further away, the angle of elevation to the top of the ...
*November 3, 2009 by Alexis*

**Geometry**

An Isosceles triangle has a 96degree angle. What are the measures of the other 2 angles? Do all triangles have to add up to 180degrees? If so, than this isn't possible because an isosceles triangle has 2 sides the same length. Correct?
*November 27, 2007 by Tyler*

**geometry**

In the diagram below, the length of the legs AC and BC of right triangle ABC are 6cm and 8cm, respectively.Altitude CD is drawm to the hypotenuse of triangle ABC. what is the lenght of AD to the nearest tenth of a centimeter?
*June 16, 2010 by Jacqueline*

**maths**

THE Perimeter of a triangle is 2004. One Side of a triangle = 21 Times the other. the shortest side is integral length. SOLVE For lengths of the sides of the traingle in every possible case.
*December 31, 2012 by sonia*

**math**

The lower leg of a right triangle is 8 cm in length. Calculate the other two knowing that the sides of the triangle form an arithmetic sequence. please give me step by step answers thanks
*June 3, 2013 by saraah*

**Trig-Geometry - Law of sines and cosines**

Hello everyone, I've been struggling on this problem for quite some time. It would be appreciated if you could help. Thanks. (The website is the diagram, it is a screenshot) In the diagram below, triangle ABC has been reflected over its median AM to produce triangle AB'C'. If ...
*November 24, 2013 by Sam*

**algebra2**

A farmer has 600 yards of fence. He will use some of the fence to enclose a rectangular area. He will use the rest divide the area into two congruent rectangles. What is the value of x that results in largest area? What is the largest area that the farmer can enclose? What are...
*March 20, 2013 by regina *

**Math**

Benny wants to plant a garden around the base of a tree. To determine the amount of topsoi needed, he measured the circumference of the tree and found it to be 9.5 ft. His garden will be 2.0 feet wide in the form of a ring around the tree. Find to the nearest square ft. the ...
*December 28, 2007 by Palma*

**physics**

A 50 kg uniform ladder, 5.0 m long, is placed against a smooth wall at a height of h = 3.7 m. The base of the ladder rests on a rough horizontal surface whose coefficient of static friction is 0.40. An 80 kg block is suspended from the top rung of the ladder, just at the wall...
*October 29, 2012 by george *

**physics**

A 50 kg uniform ladder, 5.0 m long, is placed against a smooth wall at a height of h = 3.7 m. The base of the ladder rests on a rough horizontal surface whose coefficient of static friction is 0.40. An 80 kg block is suspended from the top rung of the ladder, just at the wall...
*November 16, 2012 by jenn*

**maths --Surface area and all that..**

A toy is in the shape of a right circular cylinder with hemisphere on one end and a cone on the other . The height and radius of the cylindrical part are 13 cm and 5 cm respectively. The radius of the hemispherical and conical parts are the same as that of the cylindrical part...
*December 4, 2012 by manraj*

**Algebra**

Area of a square. Find a polynomial A(x) that represents the area of the shaded region in the accompanying figure.
*February 18, 2009 by Shandra*

**Calculus**

Find the area bounded by y= -0.5x+6, y= !/4 x and the y-axis. Sketch a graph of the two functions and shade in the area.
*July 25, 2012 by Fred*

**Jr. Math**

FIND THE AREA OF A GARDEN THAT MEASURES 31/4 BY 4/5 YARDS. AREA=LXW. i GOT 23/5 AM I CORRECT. THANKS IN ADVANCE
*October 31, 2012 by Americal*

**Math **

Find area of the region under the curve y=9−2x2 and above the x-axis. area=?
*April 28, 2015 by Anonymous*

**Physics**

From the edge of the rooftop of a building, a boy throws a stone at an angle 24.0° above the horizontal. The stone hits the ground 4.40 s later, 104 m away from the base of the building. (Ignore air resistance.) Find the initial velocity of the stone and magnitude and ...
*February 11, 2010 by Max*

**perimeter and area fractions**

find the pereimeter and area for 9 /2/3 a fraction
*January 28, 2013 by jada*

**English Grammar**

base verb basic verb base from of the verb the dictionary form root verb verb root root of the verb bare infinitive infinitive without the 'to' ----------------------------- Are they all the same? Are there any words which are not correct? What is the definition of the base ...
*March 17, 2008 by John*

**math, calculus 2 **

Consider the area between the graphs x+y=16 and x+4= (y^2). This area can be computed in two different ways using integrals. First of all it can be computed as a sum of two integrals integrate from a to b of f(x)dx + integrate from b to c of g(x)dx What is the value of a, b, c...
*September 12, 2012 by bobby*

**Math**

I'm in 5th grade and here's my question: I have to write which fraction represents the ratio of corresponding sides? There are 2 triangles. One triangle has the measurements 3in., 9in. and 6in. The other triangle is 18in., 54in. and 36in. Thank you.
*March 5, 2012 by Isabelle*

**Algebra**

Peter buys 84 yards of fence to make a play area for his puppy. He wants the area to be 28 yards long. What is the area of the play area if he uses the entire fence he bought?
*September 12, 2014 by Isabel*

**Math**

Corinda has 400 feet of square fencing to make a play area. She wants the fenced area to be rectangular.What dimensions should she use in order to enclose the maximum possible area?
*February 4, 2013 by Anonymous*

**physics**

Stones are thrown horizontally with the same velocity from the tops of two different buildings. One stone lands twice as far from the base of the building from which it was thrown as does the other stone. Find the ratio of the height of the taller building to the height of the...
*September 15, 2012 by tom*

**Physics**

Stones are thrown horizontally with the same velocity from the tops of two different buildings. One stone lands twice as far from the base of the building from which it was thrown as does the other stone. Find the ratio of the height of the taller building to the height of the...
*September 15, 2013 by Tonya*

**Math**

A cylinder has a diameter of 6 ft and a height of 3 ft. Find its surface area and volume.
*September 3, 2009 by Karen*

**Geometry**

Find the surface area of a cylinder whereas diameter is 9 ft and height is 24 ft
*March 28, 2013 by Bria *

**geometry**

Find the surface area of the cone. in pie the radius is 3 cn the height is 18
*May 27, 2013 by Hannah*

**Math help**

how to find the surface area of a cone with a diameter of 8 and a slant height of 7?
*April 7, 2014 by luna*

**calculus**

how to find surface area of a cylinder with respect to r(radius) and h(height)?
*July 21, 2015 by RR*

**algebra2**

you are creating a window display at a toy store using wooden blocks. the display involves stacking blocks in triangular forms. you begin to display with 1 block, which is your first "triangle," and then stack three blocks, two on the bottom and one on the top, to get the next...
*October 12, 2011 by jaydene*

**Geometry**

1 How many faces does a square pyramid have? 2 How many edges does a square pyramid have? 3 How many vertices does a square pyramid have? answer? 8, 5, 10 Viualize one of the great pyramids of Egypt. It's base is a square and it has four sides. So the total number of faces is ...
*March 13, 2007 by Trista*

**related rates calculus 1 **

gravel is being dumped from a conveyor belt at a rate of 15 ft^3/hr and its coarseness is such that it forms a pile in the shape of an inverted right cone whose height is three times its base radius. How fast is the height of the pile increasing when the pile has a height of 10ft
*March 22, 2015 by Ryan kustin*

**math**

if the perimeter of a pentagon is 60 com, what must its dimensions be to maximize area? the pentagon has two sides equal to ecah other, (vertical side) the the base and top are all equal to each other
*February 20, 2013 by tommy*

**math**

A tank, with a rectangular base and having vertical sides of height 4 m, is initially full of water. The water leaks out of a small hole in the horizontal base of the tank at a rate which, at any instant, is proportional to the square root of the depth of the water at that ...
*June 21, 2012 by Maya*

**math**

a room is shaped like like a triangle. the area of the room is 6 square yards. The perimeter is 10 yards. How wide and long is the room?
*January 5, 2011 by wayne*

**hialeah miami lakes**

given triangle PQR with vertices P(0,-8), Q(4,-9) and R(-2,-3), find the length of the midsegment connecting the midpoint of PQ to the midpoint of PR.
*May 3, 2011 by ivette hanon*

**math**

given a right triangle ABC with the right angle at B find AB if AC = 25 in and BC = 6 in Approximate the length of AB to two decimal places
*May 4, 2012 by mt*

**Anthropolgy**

If one strand of DNA has a nucleotide base sequence of TCAGGTCCATAT, What is its complement base sequence? If the above is the DNA template strand, what is the corresponding RNA nucleotide base sequence? How many amino acids are coded for on the segment of RNA?
*May 26, 2008 by Ted*

**math**

a aquare pyrimid has a volume of 1280 cubic meters. the base side lengths are 16 meters. find the perpendicular height of the pyramid.
*April 10, 2009 by maya*

**Math Ms. Sue please**

Find the volume of a square pyramid with a base length of 9 cm and a height of 4 cm. 324 cm^3 108 cm^3 36 cm^3 152 cm^3 Is the answer 152?
*March 1, 2013 by Delilah*

**Math, Calculus**

A right circular cone has a constant slant height of 12 feet. Find the radius of the base for which the cone has maximum value
*May 4, 2013 by Jatin*

**math, calc 2**

Using the disk method, find the volume of a right circular cone with height h and base radius r. I know the answer is 1/3pier^2h, but how do you explain or work out the problem?
*January 17, 2007 by George*

**Biology**

Which is true about the pairing of bases in the DNA molecule? a. purines always pair with pyrimidines b. a single ring base pairs with another single ring base c. a double ring base pairs with another double ring base d. purines pair with purines and pyrimidines with pyrimidines
*October 20, 2008 by KJG*

**geometry**

The length of one base of a trapezoid is 19 meters and the length of the median is 23 meters. Find the length of the other base.
*November 17, 2010 by Shaquaya*

**Geometry**

The length of one base of a trapezoid is 19 inches and the length of the median is 16 inches. Find the length of the other base.
*March 22, 2013 by Alice*

**Calculus HELP plz**

Find the area of the surface obtained by rotating the curve y=sqrt(4x) from x=0 to x=1 about the -axis. about the x-axis. surface area= ⌠ 2pi * f(x)*sqrt[1 + (f'(x))^2] dx from a to b ⌡ it's been 45 years since I used that formula. I ended up with the integral of (...
*May 12, 2007 by jimmy*

**math**

A=1/2bh A= 1/2 ? ? A= 180 what could the base and height be?
*November 17, 2010 by Zach*

**Geometry**

The measure of an exterior angle of a triangle is 120. the interior angles that are not adjacent to this exterior angle are congruent. find the measures of the interior angles of the triangle
*March 18, 2010 by Anonymous*

**math**

Prove that the least height (h) of a triangle contains a circle of radius (r) is h=3r
*January 13, 2012 by jack*

**Algebra**

In the logarithmic expression . . . log(base 4) 8 , how does the base 4 become base 2? Here is how it is suppose to be worked out: log(base2)8 / log(base2)4 => log(base2)2^3 / log(base2)2^2 => 3/2
*November 16, 2013 by Megan*

**CHEMISTRY**

Strong base is dissolved in 675 ml of 0.200 m weak acid (ka=3.25x10^-5) to make a buffer with a ph of 3.95. Assume that the volume remains constant when the base is added. HA + OH ---> H2O + A^- calculate the pka value of the acid and determine the number of moles of acid ...
*November 10, 2011 by Alexander*

**geometry**

ind the area of a circle with a radius of 1.2 meters.find the area to the nearest tenth of a square meter?
*February 25, 2010 by yuku*

**math**

write the expression that can be used to find the area of a polygon made of triangles with an area of n square units each
*January 24, 2011 by ronald*

**Geometry **

How do I find the area of a trapazoid with side lenghts 6 & 7, bottom 17 and top 10. I know the perimeter is 40. Now I need the area.
*May 22, 2011 by Mary *

**math**

Find the area of the other figure to the nearest whole number. The area of the smaller trapezoid is 771 m2.
*May 21, 2013 by Rachel*

**Literature**

Need help with this: 'Write a prose poem of your own about freedom. Base it on something you've observed in everyday life. Remember that freedom has many forms.' I can't find some area of my life that has to do with freedom, or something I observe everyday..how can I write a ...
*November 28, 2009 by mysterychicken*

**MATH**

E LARGEST PYRAMID IN THE U.S. IS THE LUXUR HOTEL IN VEGAS. THE VOLUME OF THIS HOTEL IS 28,933,800 OR ABOUT 29 MILLION CUBIC FEET. THE HEIGHT OF THE PYRAMID IS 148 FEET LESS THAN THE LENGTH OF THE BUILDING. THE BASE OF THE BUILDING IS SQUARE. FIND THE DIMENSIONS OF THIS ...
*March 10, 2008 by HOPE*

**MATH!!!PLEASE HELP!!**

A wall is supported by a brace 10 feet long. If one end of the brace is placed 6 feet from the base of the wall, how many feet up the wall does the brace reach? Think of the right triangle frmed by the wall, the floor and the brace, and use the Pythagorean theorem. The brace ...
*February 27, 2007 by megan*

**math**

San falls from a conveyor belt at the rate of 10 m^3/min onto the top of a conical pile. The height of the pile is always three-eighths of the base diameter. How fast are (a) height and (b) radius changing when the pile is 4 m height? Answer in cm/min.
*August 12, 2012 by ibranian*

**Chemistry Help!!**

Determine triangle H when 10g of HN3 are reacted in teh following reaction: 4HN3 + 2NO2 arrow pointing > 2H202 + 7N2 (note: triangle Hf for HN3 = +267.1 kJ Equation? Answer? Thanks
*May 20, 2010 by Anonymous*

**Precalc**

Okay for this question I know I am supposed to use the law of sines. But how can i tell what side is what? In right triangle ABC, a = 120 and c = 140, and ÐC is the right angle. Solve the triangle. Round to the nearest tenth, if necessary.
*August 5, 2011 by anna*

**Geometry.**

prove that the distance between any two points inside triangle abc is not greater than half the perimeter of triangle abc my teacher said to try doing this proof by contradiction. can someone please help??
*December 19, 2013 by Sammy*

**Math HELP!**

Sylvia made a poster shaped like the triangle shown below. The hypotenuse is 26in. one like is is 24 in. and the bottom leg is blank. What is the length of the the third side of the triangle? A. 10 in. B. 12 in. C. 14 in. D. 16 in. Is the answer D? Thank you
*November 5, 2014 by Callie*

**geometry**

A rectangular box with a square base contains 24 cubic feet. if the height of the box is 18 inches, how many feet ae there in each side of the base? a. 4 b. 2 c. (2 square root of 3)/3 d. square root of 3 / 2 e. square root of 3
*January 14, 2011 by lola*

**Intermediate Algebra**

The perimeter of a triangle is 48 centimeters. The longest side is 2 centimeters less than the longest side. Find the lengths of each side of the triangle.
*February 14, 2012 by M*

**math**

Triangle ABC is similar to triangle FGH. Angle A measures 42 degrees. Angle G measures 49 degrees. Find the measure of angle H
*August 20, 2012 by james*

**Algebra**

An oil spill from a tanker in pristine Prince Williams Sound in Alaska begins in a circular shape only 2 ft across. what happens to the area if the diameter is doubling each hour. How large will the spill be in 24 h? diameter= 2^(t+1) t is time in hours. Area= PI*radius^2= PI...
*July 3, 2007 by Stacy*

**Math**

In parallelogram PQRS, diagonals PR and QS intrsect at M. Which is always true? (1) PR is perpendicular to QS (2) PM is congruent to RM (3) PQ is congruent to QR (4) triangle PMS is congruent to triangle PMQ
*March 7, 2010 by Sarah*

**pre-algebra**

Can you help me figure this? The area of a rectangle is 14 square meters. Find the length and width of the rectangle if it's length is 5 meters greater than its width. Use an equation and the formula for the area of a rectangle=(width)(length). Thank you.
*December 15, 2011 by shyloh*

**HELP MS.SUE MATH 5TH GRADE**

Theresa wanted to find the height of her school's flagpole in inches. Theresa is 5 feet and 2 inches tall. She estimated that the flagpole was about 10 times her height, so she created the formula below to find the flagpole's height. height = (12 x 5 + 2) x 10 Using Theresa's ...
*December 15, 2013 by Eden S.*

**Chemistry (Check)**

Completion 1)Metric 2)Five 3)Meter 4) 5)Weight The International System of Units (SI) is a revision of the ___1____ system. There are __2____ SI base units. In SI, the base unit of length is the ___3____. The Space taken up by a cube that is 10cm on each edge is one __4___. A ...
*January 18, 2007 by Bryan*

**Physics**

Stones are thrown horizontally with the same velocity from the tops of two different buildings. One stone lands four times as far from the base of the building from which it was thrown as does the other stone. Find the ratio of the height of the taller building to the height ...
*February 18, 2015 by Anonymous*

**Math Help**

Use a proportion to find the length of side x for the pair of smilar figures below. They're both right triangles. Triangle 1 has 14cm on the the right side and 10cm on the bottom. Triangle 2 has x on the right side and 22cm on the bottom. My answer 14/10=x/22 10*x=14*22 10x/10...
*November 20, 2014 by callie*

**AP Chemistry**

What acid and what strong base would react in aqueous solution to produce the following salts in the formula equation? Write the balanced formula equation for each reaction. a. potassium perchlorate b. cesium nitrate c. calcium iodide
*November 8, 2009 by Angel*

**ALEGBRA II**

the perimeter of a triangle is 51 centimeters, the longest side is 1 centimeter less than the sum of the other two sides. twice the shortest is 11 centimeters less than the longest side. find the lengths of each side of the triangle.
*August 28, 2011 by TRACI*

**college physics**

Please help! the below questions are driving me crazy. Thanks Larry King 1) Suppose that in a certain atmospheric situation, a falling raindrop, having an initial mass of 0.010g. collects smaller droplets by collision at such a rate that, after 10s, it has a mass of 0.020g g ...
*February 5, 2009 by Larry King*

**circle geometry triangles**

how do u construct a circle that is circumscribed of a triangle? how do u constuct a circle that is inscribed in a triangle? i am a bit confused and I have finals next week!
*December 11, 2010 by Skylar*

**math**

each side of equilateral triangle is 5 cm shorter than the side of square. the sum of the perimeters of the two figures is 251 cm. how long is each side of the triangle? solution pls.
*January 13, 2015 by Seohyun*

**physics**

if each parallel conducting plates have area 1, then another area 2 is added to each plates, if i look at this formula Q=CV=epsilon(A1+A2)V/d, then shouldnt charge increases then charge density also increases
*September 1, 2010 by blasting*

**physics**

if each parallel conducting plates have area 1, then another area 2 is added to each plates, if i look at this formula Q=CV=epsilon(A1+A2)V/d, then shouldnt charge increases then charge density also increases
*September 2, 2010 by blasting*

**word problem**

A 62 foot rope hangs from the top of a pole. When pulled taut to its fullest length the rope reaches a point on the ground 31 feet from the base of the pole. Find the height of the pole to the nearest tenth of a foot. Let p equal the height of the pole.
*September 24, 2010 by Sammie*