Sunday

February 19, 2017
Number of results: 124,525

**Chemistry**

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

*January 24, 2013 by Raphael*

**Chemistry**

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

*January 24, 2013 by Raphael*

**Chemistry**

Write the chemical equation showing dihydrogen phosphate and hydrogen phosphate conjugate acid-base relationship. Identify the acid and base. Explain how the equilibrium is shifted as buffer reacts with an acid and reacts with a base.

*January 24, 2013 by Raphael*

**math**

in a triangle,the largest angle is 29 degrees more than the smallest.The third angle is 13 degrees larger than the smallest. What is the smallest angle in the triangle?What kind of triangle is it? and show work please.

*October 14, 2010 by kayla*

**math**

Find the area of the partial circle, use 22/7 for pi. 1.) radius = 27 cm find the area of 1/5 of the circle 2.) diameter = 29 ft find the area of 1/3 of the circle. Help!! Please!! Thanks!! :D

*April 26, 2012 by Ele*

**Calculus**

Find the inverse of each relation: y = (0.5)^(x+2) and y = 3log base 2 (x-3) + 2 For the first one I got y=log base 0.5 (x+2)...but the answer in the back of the textbook says that it is not x+2, but x-2. Can someone tell me why it would end up being x-2 and help me with the ...

*May 6, 2007 by Raj*

**Math**

I am supposed to find the pattern of a triangle of fractions, and find the next two rows. However, I can't seem to find the pattern. Could you please help me out? Row 1: 1 1 Row 2: 1 3/2 1 Row 3: 1 6/4 6/4 1 Row 4: 1 10/7 10/6 10/7 1 Row 5: 1 15/11 15/9 15/11 1 If you center ...

*July 30, 2011 by Needshelp*

**algebera**

1) Identify the solid form by the given net. :Triangular Prism :Triangular Pyramid*** :Cone :Triangle 2) Name the solid according to it's description: The figure has two bases that are parallel congruent circles. :Cylinder*** :Rectangular Prism :Sphere :Cone 3) Identify the ...

*February 10, 2015 by 3-D Figure and Nets*

**math**

a baseball diamond is actually a square. the distance between bases is 90 feet. when a runner on first base tries to steal second, a catcher has to throw from home to second base.how far is it between home and second base?

*September 18, 2012 by daniel*

**math**

A baseball diamond is a square with side 90 ft. A batter hits the ball and runs toward first base with a speed of 19 ft/s. (a) At what rate is his distance from second base decreasing when he is halfway to first base? (Round your answer to one decimal place.) ft/s (b) At what ...

*February 26, 2016 by abhishek*

**Calculus**

1.At noon of a certain day,ship A is ^0 km due north of ship B. If A sails east at 12 km/hr and B sails north 9 km/hr,determine how rapidly the distance between them is changing 2 hrs later. Is it increasing or decreasing? 2.At a given instant the legs of a right triangle are ...

*August 31, 2014 by 123*

**Bio**

a) Make a single base pair substitution mutation in the gene below that results in a mature mRNA that is shorter than the mature mRNA produced by the original gene. When you are satisfied with your change and its effect, click the "Final Check" button. Note that a "single base...

*May 14, 2013 by Amos Amines*

**calculus**

1. A solid is constructed so that it has a circular base of radius r centimeters and every plane section perpendicular to a certain diameter of the base is a square, with a side of the square being a chord of the circle. a. Find the volume of the solid. b. If the solid ...

*March 25, 2012 by Yuri*

**maths**

A series of steps lead to a temple.The number of step is 30. The height of each step is 20 cm.Then find the height of the temple from the base.

*March 16, 2015 by sanjay*

**Calculus**

A rectangle is bounded by the x-axis and the semicircle y=ã(25-x^2). Question is, what length and width should the rectangle have so that its area is a maximum, and what is the maxuimum area? Area= length*width = 2x*y= 2x*sqrt(25-x^2) Now, take that, differentiate it, set ...

*October 6, 2006 by Tezuka*

**C++ Programming**

Can any1 please fix this c++ source problem /*Circle Are program Calculates the area of a circle using the formula A=pi * r * r Sonny Hinh, 1/23/08 #include <iostream.h> int main() { cout << "-Calculate the area of a circle-" << endl; cout << end; cout...

*January 23, 2008 by sonnytsn*

**Physics**

From the window of a building, a ball is tossed from a height y 0 above the ground with an initial velocity of 10.00 m/s and angle of 25.0° below the horizontal. It strikes the ground 3.60 s later. If the base of the building is taken to be the origin of the coordinates, with...

*October 10, 2013 by emanuel*

**Calculus**

Calculate the height of a cylinder of maximum volume that can be cut from a cone of height 20 cm and base radius 80 cm , please help me

*December 25, 2011 by sara*

**geology**

1. What fraction of the Earth is made up of each of the major compositional layers: core, mantle, and crust? 2. What cities lie the same distance from our town as the boundaries of the following layers in the Earth lie from the solid surface? a. Base of oceanic crust or top of...

*September 3, 2008 by student01*

**HELP ME MATH**

There are two triangles one large and one small. Write an expression in simplest form for the perimeter of each triangle. Large triangle left side says 4x+2 top says 7x+7 bottom days 5x-4. Small triangle left side says x+3 top says 2x-5 and bottom says X+7. How do I write an ...

*April 22, 2016 by Quzzy modo*

**college**

The angle of elevation from point A to the top of a vertical pole is 30.0 degrees. At point B, 6 meters closer to the base of the pole and on a line through the base of the pole and point A, the angle of elevation to the top of the pole is 37.0 degrees. Find the height ( to ...

*December 11, 2010 by Ashley*

**math**

Two angles of a triangle have the same measure and the third one is 15 degrees greater than the measure of each of the other two. Find the measure of the LARGEST angle in the triangle.

*February 1, 2009 by cindy55*

**Algebra**

Two angles of a triangle have the same measure and the third one is 9 degrees greater than the measure of each of the other two. Find the measure of the LARGEST angle in the triangle.

*January 27, 2016 by Seymour*

**Algebra**

Two angles of a triangle have the same measure and the third one is 51 degrees greater than the measure of each of the other two. Find the measure of the LARGEST angle in the triangle.

*January 27, 2016 by Seymour*

**Organic chem**

Classify each as a lewis acid or lewis base... A)H20 B)O2- C)Cu2+ D)SO3 E)AlCl3 Lewis acids are electron pair acceptors. Lewis bases are electron pair donors. Look at H2O, for example. .. H:O: .. H This molecule has no "holes" to accept an electron. Would you expect this to be...

*October 15, 2010 by Adam*

**pre-algebra NEED HELP!**

1.Which solid has one base that is a triangle and three lateral surfaces that are triangles? A:triangular pyramid*** B:triangular prism C:rectangular prism D:rectangular pyramid 2:Sara needs to cover the top and the sides of the cylinder below. 8in 12in About how many squat ...

*May 27, 2015 by GummyBears*

**Math help please!!!!!!**

Given a scale factor of 1/2,find the coordinates for the dialation of the triangle with vertices as (0,0),(0,2), and (4,0). A.(0,0),(0,4),(8,0) B.(0,0),(0,1),(2,0) C.(1/2,1/2),(1/2,1),(2,1/2) D.(2,2),(2,4),(8,2) Is the answer B?

*November 13, 2014 by Callie*

**algebra**

the lengths of two sides of a right triangle are given. find the length of the third side. a=9,c=41

*December 16, 2014 by brandon*

**Geometry**

Given triangle GHI with G(4, -3), H(-4, 2), and I(2, 4), find the perpendicular bisector of line HI in standard form. Please help? Thanks

*January 13, 2016 by SkatingDJ*

**Calculus**

Find the volume of the given solid. Under the surface z = 7xy and above the triangle with vertices (1, 1), (4, 1), and (1, 2)

*October 11, 2016 by Anon*

**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 9, 2011 by Alexander*

**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 9, 2011 by Alex*

**GEOMETRY**

Which statement is the contrapositive of the following conditional: If a triangle is isosceles, then it has 2 congruent sides. a. If a triangle does not have 2 congruent sides, then it is not isosceles. b. If a triangle is isosceles, then it does not have 2 congruent sides. c...

*February 21, 2012 by LAUREN*

**math/algebra**

1) The length of one of the equal legs of an isisceles triangle is 8cm less than 4 time the length of the base. If the perimeter is 29 cm, find the length of one of the equal legs. a) 4 cm B) 5 cm C) 11 cm d) 12 cm 2) The perimeter of a rectangle is to be no greater than 300 ...

*June 14, 2007 by Diana*

**Math**

The area of each unshaded rectangle is given (the areas given are ( 30 in.², 45 in.², 72 in.²)). What is the area of the shaded rectangle?

*April 29, 2015 by Susan*

**math**

In triangle ABC, angle C is congruent to angle A, line BC=2x-5, line AB=x+5 and line AC=x+10. Find x. The problem didn't have a triangle drawn so i drew it myself. I tried many equations but when i substitute it it didn't work.

*November 16, 2008 by mark*

**For -Ms Sue**

Claim: the lateral (side ) surface of any area of any cylinder can is larger than the circlar surface area of its bottom. Which of the following is an example showing that the claim is false? a. a can with the diameter of 5 inches and height of 10 inches b. a can with diameter...

*May 25, 2011 by Mary*

**Math**

what is the value of the missing angle? (I don't know what you call this shape but its like drawing a house on paper but its upside down ex: the triangle is on the bottom and the square is on top. where the triangle is theres a number 140 on each side and the point part has a ...

*March 15, 2016 by Amber*

**chemistry**

A 1.00-g sample of piperazine hexahydrate is dissolved in enough water to produce 100.0 mL of solution and is titrated with 0.500 M HCl. What is the initial of the solution, before any titrant is added? Piperazine,HN(C4H8)NH, is a diprotic weak base used as a corrosion ...

*March 30, 2011 by shae*

**GEOMETRY**

The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with x(ray sign) r and p(ray ...

*November 16, 2013 by BARBIE LEE*

**geometry**

The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with x(ray sign) r and p(ray ...

*November 17, 2013 by barbie lee*

**geometry**

Write a two column proof of the Corollary Triangle Sum Theorem. The acute angles of a right triangle are complementary. m<A + m<B=90degrees

*October 23, 2006 by Steve*

**Math**

(1) Which of the following ingegers can not represent the lengths of the sides of a triangle? (9,10,11) (4.7,9) (4,8,12) & (6,6,11) (2) The measures of two supplementary angles are in the ratio 5:1. What is the measure of the smaller triangle?

*February 23, 2007 by Peggy*

**math**

The length of each side of a triangle is an even number. If no two of the sides are equal, what is the smallest perimeter the triangle coul d have? ans-18

*November 2, 2010 by dhiraj*

**physics**

An equilateral triangle with sides 2 m each has a charge of 30 μC at each of its three corners. Determine the electric field at a point 5 m above the center of the triangle.

*January 24, 2012 by Anuj*

**math**

which shape will create tessellation using only translations? A. scalene triangle B. regular hexagon C. equilateral triangle D. isosceles trapezoid

*April 2, 2013 by andrea*

**E& M physics**

Three electrons form an equilateral triangle 0.600 nm on each side. A proton is at the center of the triangle. What is the potential energy of this group of charges?

*October 2, 2015 by Master Blaster*

**math**

1.the vertices of triangle abc are A(2, -5) B(-3,5) C(3, -3). the trianlge is reflected over the x-axsis. use the arrow notation to discribe the origanal triangle and its reflection.

*March 30, 2016 by Math 7*

**Math**

The areas Of Two Similar Triangle Are 144cm & 81cm . If One Of The First Triangle 6cm, What Is The Legth Of The Correspoding Side Of The Secod?

*May 18, 2016 by Greda 9*

**math**

The shorter diagonal of a rhombus is 10 inches long, and the angle the diagonal forms with the side measures 60º. Find the area of the rhombus. I really don't know where to start. I know that the area formula for a rhombus is A=1/2*d1*d2 So if I know that one of the D is 10, ...

*April 3, 2007 by Emily*

**Math**

Okay so I'm trying to work out how many mm of rain fell in a certain area. I've got the total volume/capacity that fell (3.51125KL) and the total area that it fell in (8558.25m). My formula is Total Rainfall = rainfall mm x area covered How would I make sure that all the ...

*April 23, 2011 by Tatiana*

**Calc 3**

The actual span of the base of the dome is 143 feet. 1) Use cylindrical coordinates to write the surface of the dome as a function of the distance from the center of the base; that is find z = f (r) . 2) Use your function to find the height of the dome; that is what is f (0...

*December 7, 2009 by joe*

**Math - check my answers :)**

1. Find the amplitude, if it exists, and the period of y=tan 1/4È Answer: No limits in amplitude, y=tanÈ/4 period is 4pi 2.Solve x = Arctan(-sqrt3) Work: Pythagorean theorem: sqrt(1^2+3)= sqrt4=2 in length. Triangle is 1, sqrt 3,2 Answer: -60° 3. In triangleABC, A = 35°, a...

*January 30, 2009 by Grace*

**geometry**

Shape is a trapezoid: LINE AC = 12dm LINE FD = 13dm LINE BE = 14dm LINE CG = 10dm This line makes the right angle of the triangle What is the area?

*May 19, 2013 by beck*

**Math help, anyone?**

calculate the slant height for the given square pyramid. Round to the nearest tenth. Pyramid base= 6cm height=5 cm 6.2 cm 5.8 cm 7.8 cm 7.2 cm Calculate the length of the diagonal for the given rectangular prism. Round to the nearest tenth. Length= 10 cm widith= 4cm height= ...

*March 10, 2014 by Princess Anna*

**calculus**

You are planning to close off a corner of the first quadrant with a line segment 20 units long running from (a,0) to (0,b). Show that the area of the triangle enclosed by the segment is largest when a=b. Can anyone please give me some ideas to do it????THANKS A LOT!!

*December 3, 2008 by Toby*

**maths**

Choose three options which are true: a) an angle of 150 degrees is equivalent to 2pie/3 radians. b) Cos 0 = cos (0 – pie/2) for al values of 0. c) Sin 0 = cos (0 – pie/2) for all values of 0. d) If triangle ABC has a right angle at B, then sin A = cos C e) In any triangle ...

*May 20, 2007 by sarah*

**Calculus**

Sand is poured onto a level piece of ground at the rate of 0.25 m^3/min and forms a conical pile whose height is equal to its base diameter. How fast is the height increasing at the instant when the height is 0.50 m? V = 1/3(pi)(r^2)h I got 3/pie, is that correct?

*February 20, 2012 by help*

**Physics (vectors)**

I am stuck with this question.Please help. I have a triangle that is not a right triangle with sides A, B, and C.(no values).The arrow's heads of A and B are joined and the arrow's head of C is in the tail of B. If the resultant is A,what is the vector equation, and what is ...

*February 15, 2013 by Kathy*

**Math (please help steve)**

In triangle ΔABC, AB^2+BC^2+AC^2=cosAsinBsinC+sinAcosBsinC+sinAsinBcosC. The area of the circumcircle of ΔABC can be represented as a/bπ, where a and b are positive coprime integers. What is the value of a+b?

*August 12, 2013 by Anonymous*

**calculus**

calculate the largest area possible that can be made by a 15 meter long wire that will be bent to form a closed plane area. No figure given

*July 2, 2015 by Jhun*

**MATH**

Given the indicated parts of triangle ABC with γ = 90°, approximate the remaining parts. (Round your answers for a and c to one decimal place.) β = 51°31', b = 250.0 α = ° ' a = c = Given the indicated parts of triangle ABC with γ = 90°, approximate the...

*September 28, 2011 by STEPHANIE*

**math**

Given the indicated parts of triangle ABC with γ = 90°, approximate the remaining parts. (Round your answers for a and c to one decimal place.) β = 51°31', b = 250.0 α = ° ' a = c = Given the indicated parts of triangle ABC with γ = 90°, approximate the...

*September 28, 2011 by STEPHANIE*

**Calculus**

Find the area cut off by x+y=3 from xy=2. I have proceeded as under: y=x/2. Substituting this value we get x+x/2=3 Or x+x/2-3=0 Or x^2-3x+2=0 Or (x-1)(x-2)=0, hence x=1 and x=2 are the points of intersection of the curve xy=2 and the line x+y=3. Area under curve above X axis ...

*April 1, 2014 by MS*

**math (area&perimeter)**

the demensions of a rectangle are 5y for the height, and 7y-4 for the length. the question i need help with is asking me to simplify the equation for the perimeter and the area of this figure.

*January 23, 2011 by aleasha*

**Math quest 2**

If a triangular sail has a vertical height of 83 ft. And horizontal length of 40 ft, what is the area of the sail? I got area : 3,320ft squared

*February 19, 2013 by Marco*

**math( surface area)**

write a product that represents the surface area of any rectangular prism with length l, width w, and height h. Expain.

*April 3, 2016 by Julia*

**Math, Trig/Pre Calc**

You have been asked to build a ramp for Dan’s Daredevil Motorcycle Jump. The dimensions you are given are indicated below. Find the height and incline in feet. Round to the nearest foot One side is 200 ft.The angle between the hypotenuse and the side of 200 ft is 13 degrees...

*October 24, 2014 by Sarah Blanchard*

**algebra**

One more triangle question,please. In this triangle,the short leg is x and the longer leg is 1/2x + 11. If the hypotenuse is 2x + 1, what are the lengths of each side of this right triangle? Please show all calculations. Short leg = ______ Long leg = ___________ Hypotenuse = ...

*January 23, 2017 by Anneliese*

**physcis**

A 100.0 kg base runner begins his slide into second base when he is moving at a speed of 4.70 m/s. The coefficient of friction between his clothes and Earth is 0.550. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to...

*October 10, 2012 by Anonymous*

**Physics**

Three charges are arranged in an equilateral triangle with sides of 4 cm. The coordinates and corresponding charge values are as follows: +4q at (-2,0); +2q at (2,0); -q at (0,3.464). The elementary charge of an electron is given by q = -1.602 x 10^-19 C. Determine the torque ...

*May 4, 2011 by Jonny*

**Algebra 2**

Can you please explain step by step on how to do this problem? Condense the expression. 2(log base 6 of 15 - log base 6 of 5) + 1/2 log base 6 of 1/25

*January 19, 2012 by Lynn*

**Algebra 2**

Can you please explain step by step on how to do this problem? Condense the expression. 2(log base 6 of 15 - log base 6 of 5) + 1/2 log base 6 of 1/25

*January 19, 2012 by Lynn*

**Calculus, Math word problems.**

A closed box is to be made in the shape of a cubiod, of height h cm and with a square base that has sides of length x cm. Its volume V is required to be 500 cm^3. A) write an expression for the V (volume)in terms of h and x. B)Write an expression for the surface area A in ...

*March 1, 2016 by Mat*

**Math - Vectors**

Let the points A = (−1, −2, 0), B = (−2, 0, −1), C = (0, −1, −1) be the vertices of a triangle. (a) Write down the vectors u=AB (vector), v=BC(vector) and w=AC(vector) (b) Find a vector n that is orthogonal to both u and v. (c) Find a ...

*May 31, 2016 by Drake*

**Calculus: Application of Integration**

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 ts height and width. Then find the area of the region. y=x^2 y^2=x

*October 5, 2010 by Anonymous*

**geometry**

find the surface area of a right prism with the given features: The bases are trapezoids with bases of lengths 6 and 10 perpendicular to one side of the length 12 ; height = 12 Round the answer to the nearest square unit

*October 7, 2010 by Sam*

**math**

A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this information, how can you ...

*April 19, 2013 by Tom*

**math**

A child’s kite is on top of a straight pine tree. A ladder is placed against the tree and touches the kite. The ladder forms a 45-degree angle with the flat ground. The base of the tree is 9 feet away from the base of the ladder. With only this information, how can you ...

*April 23, 2013 by Anonymous*

**geometry easy**

The sides of a triangle are 8,15 and 18 the shortest side of a similar triangle is 10 how long are the other sides? Find the scale factor of similar triangles whose sides are 4,12,20 and 5,15,25 Assume that traingle xyz is similar to triangle rpn with x(ray sign) r and p(ray ...

*November 17, 2013 by barbie lee*

**Physics**

Skydiver Joseph Kittinger, record for the longest jump, reaches a terminal speed of 60m/s with his arms and body fully extended. Then, he switches to a head first dive, reducing his cross section area by 80% (that is, his cross section area when head-first is only 20% of his ...

*October 26, 2010 by Gharib*

**algebra or algebra1**

What is the area of the triangle whose vertices are (−4, 0), (−10, 0) and (−7, −6)

*November 3, 2015 by sue*

**geometry**

Jamie needs to find the missing angle of a right triangle with the third angle measuring 62 degrees. What is the measure of the third angle of the triangle?

*February 10, 2015 by Alex*

**algebra**

fill in the missing values for a retangular prism. length__________? width 7 height 5 surface area 358 volume __________? Formula SA = 2(LxW) + 2(LxH) + 2(WxH)

*March 28, 2012 by paul*

**algebra**

What is the formula to find the area of a circle?

*March 19, 2013 by syram*

**calc**

the volume of a cylindrical tin can with a top and a bottom is to be 16*pi cubic inces. if a minimum amont of tin is to be used to construct the can, what must be the height, in inches, of the can? volume of cyliner is pi*r^2*h do i like take derivitive of something since it ...

*December 8, 2006 by david*

**math**

A sector of a circle subtending an angle 300 degrees at the centre is used to form a cone with base radius 6cm. Find the (a.)radius of the circle (b.)volume of the cone (c.)area of the minor sector of the circle

*April 30, 2014 by shegster*

**Maths(logarithmic functions)**

solve it: a) 3 log x with base 8 + 2 = 0 b)2 log (x-1)with base 6 =log 4 with base 6

*November 12, 2011 by Kong*

**math**

solve the simultaneous equations; log x base 2-log y base 4=4, log (x-2y)base 2=5

*February 17, 2013 by jessica*

**Algebra2**

Combine, rewrite & solve: 4 log base 9 of 3 = x log base x of 12 + log base x of 18 = 3

*April 11, 2013 by Anonymous*

**Math**

Without using table....log(base 5) (8/2) + log(base 5) 3(15/2) -log(base 5) (81/8)

*March 6, 2016 by Ruth*

**calculus**

A rectangle is constructed with its base on the diameter of a semicircle with radius 5 cm and with two vertices on the semicircle. What are the dimensions of the rectangle with maximum area?

*November 4, 2010 by Bob*

**Calculus**

A rectangle is constructed with its base on the diameter of a semicircle with radius 5 cm and with two vertices on the semicircle. What are the dimensions of the rectangle with maximum area?

*November 7, 2010 by Tiff*

**Math**

An open top box with a square base has a volume of 30ft^3. The total surface area of the box is? a) S.A=x^2-60/x b) S.A=x^2+60/x c) S.A=x^2-120/x d) S.A=x^2+120/x

*December 28, 2016 by Syndra*

**geometry**

The volume of the rectangular prism is 280 cubic cm. Its base has the area of 40 sq. cm. What is the volume of the pyramid inside the prism???

*September 28, 2014 by Hana*

**geometry**

The volume of the rectangular prism is 280 cubic cm. Its base has the area of 40 sq. cm. What is the volume of the pyramid inside the prism?

*September 28, 2014 by Hana*

**MATH**

The ratio of two angles of a triangle is 3:2.The remaining angle is the smallest which is half the largest angle of the triangle. What is the measure of smaller angle of a parallelogram if sum of both smaller angles of the triangle is equal to the larger angle of the ...

*September 2, 2015 by MAMTA*

**math help please**

a plane intersects a right rectangle prism perpendicular to its base .The plane forms cross section.What is the shape of the cross section? a)parallelogram,that is not a rectangle b)triangle,that is not equilateral c)trapezoid d)rectangle

*March 9, 2016 by betty*

**math**

i want to find the capacity of a tank in litres which has height 30cm, base 16cm, lenght 17cm and has a thickness of 0.5cm

*March 24, 2011 by chukwunenye*

**Math**

Find the volume of a right circular cone with base diameter 12.0 m and slant height is 10.0m . Round to the nearest whole

*November 24, 2014 by Jeet*