Saturday

October 10, 2015
Number of results: 107,536

**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*

**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*

**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*

**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*

**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**

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*

**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*

**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 C 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**

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*

**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*

**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*

**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.*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**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*

**math**

The ratio of the corresponding sides of two similar triangles is 3:2. The sides of the larger triangle are 15 cm, 24 cm, and 27 cm. What are the lengths of the sides of the smaller triangle?
*April 11, 2011 by Kylie*

**Algebra 1**

each side of an equilateral triangle is 4 cm shorter than twice the length of each side of a square. their perimeter are the same. how long is each side of the triangle?
*August 30, 2014 by Anonimous*

**math**

I have 14 questions and I was wondering if someone could check my answers. This is a do or die situation. If I don't get an A, I may not get to graduate. I really appreciate you taking your time to double check theses for me. Thanks if you do. I know its a lot. They are all ...
*April 2, 2011 by Brittany*

**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*

**Chemistry**

In a solution of a weak acid and its conjugate base, which condition has to be true for pH to equal pKa? The concentration of acid has to be greater than the concentration of base. The concentration of acid has to be equal to the concentration of base. An indicator has to be ...
*April 20, 2015 by Kristin*

**Math**

Write a formula to find the area (A) of a square. Use S to represent the length of one side.
*November 13, 2008 by Isabel*

**geometry**

Find the lateral area and volume of the right triangular prism. side lengths are 3,4,5 and height is 6.How do I find out the apothem?
*May 22, 2014 by Jane*

**Please help with a trapezoid - circle problem**

A circle with radius 3 is inscribed in a isosceles trapezoid with legs of 10. Find the length of the smaller base. When I draw a diagram, calling the trapezoid ABCD with A and D at the bottom, I see that the length from where the altitude from B and C hits AC to D is 8 from ...
*February 18, 2013 by Knights*

**physics (geography bit)**

Thanks for the help guys!!! I really appreciate it!!! ok I drew the thing as caerfully as I good h t t p : / / i m g 3 7 . i m a g e s h a c k . u s / i m g 3 7 / 7 8 0 7 / f i r s t d w s . j p g ok I redrew it chekc it Ok I followed the directions and made a line through the...
*August 10, 2009 by physics (geography bit)*

**physics (geometry bit)**

Thanks for the help guys!!! I really appreciate it!!! ok I drew the thing as caerfully as I good h t t p : / / i m g 3 7 . i m a g e s h a c k . u s / i m g 3 7 / 7 8 0 7 / f i r s t d w s . j p g ok I redrew it chekc it Ok I followed the directions and made a line through the...
*August 11, 2009 by physics (geometry bit)*

**Chemistry**

In a titration HCl and NaOH have a 1:1 ratio. Can you still use the formula M1V1 = M2V2 to find the molarity of the NaOH base if we change the acid to sulfuric H2SO4?
*March 4, 2010 by Jimmy*

**in washington**

by 2004 NASA wants to have a moon base that would be a base for trips to what planet Go to http://www.google.com and enter nasa moon base -- see what results you get. If you don't get what you want, alter the search words a bit. =)
*December 12, 2006 by mak*

**math a2**

the expression 4x3-6x2 represents the area of a triangle. write the expression as the product of two factors. 4x3-6x2 as in: FOURx 3(power) -(minus) SIXx 2(power)
*March 3, 2008 by jennah*

**math a2**

the expression 4x3-6x2 represents the area of a triangle. write the expression as the product of two factors. 4x3-6x2 as in: FOURx 3(power) -(minus) SIXx 2(power)
*March 3, 2008 by jennah*

**math a2**

the expression 4x3-6x2 represents the area of a triangle. write the expression as the product of two factors. 4x3-6x2 as in: FOURx 3(power) -(minus) SIXx 2(power)
*March 3, 2008 by jennah*

**math a2**

the expression 4x3-6x2 represents the area of a triangle. write the expression as the product of two factors. 4x3-6x2 as in: FOURx 3(power) -(minus) SIXx 2(power)
*March 3, 2008 by jennah*

**Math - Trig**

1. Given that points S and R on opposite sides of a lake, triangle SRT is formed. To find the distance RS across the lake, a surveyor lays off RT = 53.1 m, with angle T = 32deg 10' and anagle S = 57deg 50'. Find length RS.
*November 27, 2013 by McKenna Louise*

**Geometry / Algebra 1 **

(a) The surface area of the prism shown is 314 square meters. Write an equation that u can solve to find the value of w. side a=wm b=8m and c=(w+4)m (on the picture) I'm guessing u use the formula surface area=2ab+2bc+2ac??? Well if so I need all that solved into y=ax*2+bx+c ...
*September 5, 2013 by ̤T̤̈Ẅ̤̤z̤̈Ḧ̤̤r̤̤̈ ⍨*

**Physics (Liquids)**

I have a question about fluids ok... I've been told that Pressure = (density of fluid) (gravity) (height) ok that's great in all but I don't see how it works... Pressure = (Force perinduclar to area force is acting on)/(Area force is acting on) ok this great and all but leads ...
*October 21, 2009 by Physics (Liquids)*

**Algebra 1**

Using the same formula and the accompanying figure, deduce a formula for the altitude, h, of an equilateral triangle in terms of its side, c. really need help don't know what it means by "accompanying figure" because there's nothing "accompanying" it!! :/ thank you so much!
*May 3, 2013 by Need Help NOW!!!*

**geometry/algebra**

I asked this question yesterday, and I'm trying to understand it since I got the wrong answer - please explain: You need to make a soda can with a volume of 29 cubic inches. Find the surface area. calculate the following: a) How much material is needed if the can's radius is 1...
*November 9, 2010 by Nancy*

**maths**

A hallow sphere has a volume of xcm^3 and a surface area of ycm^2 if the value of the diameter of the sphere is the radius of the area of a semicircle.what is the radius of a cylinder(P) if the area of the circle is equal to the area of the cylinder when the hight of the ...
*July 30, 2015 by anthony*

**oblique triangle trigonometry**

A parking lot has the shape of a parallelogram. The lengths of two adjacent sides are 70meters and 100meters. The angle between the two sides is 70o. What is the area of the parking lot?
*August 25, 2015 by James Arceno*

**Calculus**

For the function f(x)=10-4(x^2), find a formula for the lower sum obtained by dividing the interval [0,1] into n equal subintervals. Then take the limit as n->infinity to calculate the area under the curve over [0,1]. I only need help with the first part. I don't really ...
*May 5, 2009 by Jenna*

**Titration**

Which of the four solutions (all same concetrations, same volume) requires: a) the greatest amount of base for complete titration? b) the greatest amount of base to titrate to any given pH? HCl, acetic acid, formic acid, HNO3. i put HCl for both... is that correct?
*January 11, 2009 by Andrew*

**math**

help on this one would be appreciated Find the area of only the area which contains both the circles r=4cos and r=43sin
*August 5, 2007 by samavi*

**Math**

Maximizing Area: Among all rectangles that have a perimeter of 20 ft, find the dimensions of the one with the largest area.
*October 9, 2009 by David*

**Calculus**

How do I find the total area of three connected equally sized pens built so as to maximize the area bounded?
*August 24, 2012 by Don*

**Algebra**

The area of a of trinagle with b and h is a=1/2bh find the area when b=30 and h =38 m
*November 25, 2011 by Nicky*

**5th math**

can you draw an isosceles triangle that ia not equilateral? draw me sclene triangle ? please !draw me so ,i will get today for my preview .thanks!!!
*October 28, 2010 by pat*

**Geometry**

The lengths of the sides of a triangle are 3,5, and 7 inches. How many inches long is the shortest side of a similar triangle that has a perimeter of 75 inches? F.10 G.12 H.14 H.15 k.22
*December 7, 2012 by Lisa*

**Chemistry**

Calculate pH of a solution by mixing 15.0 mL of .50 M NaOH and 30.0 mL of .50 benzoic acid solution (benzoic acid is monoprotic, its dissociation constant is 6.5 x 10^ -5). I am not sure whether I am supposed to do it by acid-base titration way or to use the formula -log (Ka...
*July 28, 2009 by Soojung*

**Math**

5. Find the surface area of the cylinder to the nearest whole number. (1 point)1,659 in.2 898 in.2 5,862 in.2 2,959 in.2 6. Find the surface area of the pyramid shown to the nearest whole number. (1 point)1,540 m2 770 m2 396 m2 749 m2 7. Find the surface area of a conical ...
*May 17, 2014 by Anonymous*

**Pre Calculus**

He needs two adjacent rectangular enclosures - he has 300 feet of fencing. a. find a function that models the total area of enclosures with respect to the width of the enclosures. b. write your function in vertex form using the vertex formula. c. what is the largest area that ...
*September 29, 2013 by emily*

**Geometry**

If the perimeter of a triangle is 12, which of the following could be the length of one side of the triangle? a. 8 b. 7 c. 6 d. 5 Would the correct answer be d. 5? And how do you go about answering this type of question? I just guessed; I figured it was the smallest number.. ...
*May 10, 2009 by Anonymous*

**Geometry**

I having diffucltly with this triangle.This trangle angles are 3x,4x,x.You have to solve for x.I know you have to use the triangle sum therom.I got 7x=180.That would equal a decimal point which is not right.It has to be whole number.
*July 4, 2011 by Anonymous*

**Calculus**

Find the exact coordinates of the centroid. y = sqrt[x], y = 0, x = 9. -------------- Is this basically 1/4 of an oval/ellipse? If so then the area would be: pi*9*3, correct? So the X coordinate would equal: 1/Area * Integral from 0 to 9 of (x*f(x))*dx Which equals: (4/(27*pi...
*June 18, 2007 by COFFEE*

**geometry**

A cone is created from a paper circle with a 90 sector cut from it. The paper along the remaining circumference of the circle is the base of the cone. Find the radius of the base of the cone. Round to the nearest hundredth.
*April 27, 2012 by Alan*

**Geometery **

I need to know the laws of triangle inequality. i need help what is triangle in equality?
*January 6, 2010 by Francesca*

**geometry**

If the perimeter of the smaller triangle is 4cm, what is the perimeter of the larger triangle?
*February 20, 2011 by Anonymous*

**Geometry**

If (triangle)IGH is congruent to (triangle)KLJ, then <H is congruent to ___
*March 6, 2014 by Kylee*

**Mathematics**

A 306090 triangle has a hypotenuse with a length of 18. What is the length of the shorter leg of the triangle?
*March 10, 2014 by CrazyCraft Mod Pack + OreSpawn = FUN! XD*

**Chemistry (please check) **

2) Calculate the Molar Enthalpy of Neutralization (ΔHn) in kJ/mol of the reaction between a monoprotic acid and a monoprotic base, given the following information: The temperature change equals 5.06C, 50.0 mL of 1.00 M concentration of Acid 50.0 mL of 1.00 M ...
*June 30, 2013 by Mary *

**calculus**

A rocket is fired into the air, and its height in meters at any given time t can be calculated using the formula h(t) = 1600 + 4.9t^2. Find the maximum height of the rocket and the time at which it occurs.
*October 25, 2011 by Jake*

**Algebra**

A triangle has the side lengths of 5 inches 12 inches and 15 inches every demention is multiplyed by 1/5 to form a new triangle how is the ratio of the perimeters related to the ratios corresponding sides?
*October 25, 2010 by Joelseph *

**math**

Triangle ABC is an equilateral triangle with side length AB=22. Place a point D on the line segment BC. Extend BC to the point E such that BD=CE. point E is defined as lying on BD and satisfying BD=CE.What is the value of DE?
*June 16, 2013 by Anonymous*

**chem**

Calculate the pH of 0.20 M NaCN solution. NaCN ---> Na+ + CN- CN- + H20+ ---> HCN+ + OH- Initial conc. of CN- = 0.20 mol/L change = -x equillibrium = 0.20-x HCN equill. = +x OH equill. = 1x10^-7+x Ka= 6.2 x 10^-10 Kb = KW/Ka = 1x10^-14/6n2 x 10^-10 = 1.6 x 10^-5 1.6 x 10...
*July 24, 2009 by Lena*

**College Chemistry**

Sodium hydroxide is used extensively in acid-base titrations because it is a strong inexpensive base. A sodium hydroxide solution was standardized by titrating 27 mL of 0.1628 M standard hydrochloric acid. The initial buret reading of the sodium hydroxide was 2.44 mL, and the ...
*October 3, 2010 by KELLY*

**Chemistry**

If 16.5 grams of the base were used in the neutralization of *question 7*, how many grams of acid must have been used to neutralize the base? *neutralization of Na2CO3* ---------------- Would the answer be 16.5g of acid? I was thinking that the acid and base should be the same...
*March 2, 2015 by Anonymous*

**calculus**

This is problem 16 Section 4.6 page 246. A closed box with square base is to be built to house an ant colony. The bottom of the box and all four sides are to be made of material costing dollar/sq ft, and the top is to be constructed of glass costing dollar/sq ft. What are the ...
*November 11, 2011 by calculus*

**math**

find the surface area of a cylinder where the radius is=5.5in. and the height is=4 inches
*May 19, 2011 by Anonymous*

**Math**

A trapezoid has an area of 312cm2. If the bases are 3cm and 20cm, find the height.
*January 5, 2012 by Nicole*

**geometry **

Find the surface area of a rectangular prism with a height of 11, a length of 15, and a width of 10.
*July 17, 2012 by alexis*

**algebra**

A gardener wants to create a triangular garden in the shape of a right triangle with shortest side length x 2y ft. and the middle length side x + 4y ft. What is an algebraic expression for the area of the garden? Be sure to multiply this out and express in simplest correct ...
*April 28, 2011 by andrea*

**Physics**

You will use the formula p*V = kB*N*T to find the depth of the box (front to back measurement). The volume of the box is given by the formula V = W * H * D. (You will need to convert the pressure from atm to Pa, or pascals, by multiplying atms by 1 * 105.) The height of the ...
*April 19, 2015 by Jennifer*

**Maths**

An equilateral triangle with side length 33 is divided into 33^2 smaller unit equilateral triangles each with side 1, forming a triangular lattice. We color each segment of length 1 either Red, Blue or Green, subject to the condition that each small unit equilateral triangle ...
*April 30, 2013 by MAths lover Please Helppppp*

**Geometry**

Which is the hypotenuse-leg theorem? A. If the hypotenuse and one leg of a right triangle are similar to the corresponding parts of another right triangle, then the triangles are congruent. B. If the hypotenuse is congruent to the corresponding part of another right triangle, ...
*June 29, 2010 by Superman*

**Basic Caluculus**

f(x)=2x^3-x^2+1 [1,4]=interval Using the limit process, (once with right endpts, and the other with left entdpts.) find the area under the curve and above the x-axis on the given interval i got the area to be 107.5 for right endpts. (not sure if its right) but what about the ...
*May 29, 2011 by Munni*

**geometry**

I need to find the area of the shaded portion of a circle with a square in the middle all corners touching the circle. My square has a line measurement of 10 cm. I know that the area of the square is 100 cm(10 x 10). But I am not sure what to do with the circle. Is the ...
*May 29, 2010 by bart*

**Congruence-creating a triangle**

Three segments are given. I need to draw one segment with the same length as any one of the given segments. Then take the measure of another given segment with my compass and draw a cirlce of that radius from the endpoint of my first segment. The question is: 1. What is true ...
*November 4, 2006 by Jen*

**Math 2 questions**

A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 23 ft. Round to the nearest tenth, if necessary. 3.8 ft3 60 ft3 15 ft3 10.4 ft3 A pyramid has a height of 5 in. and a surface area of 90 in2. Find the surface ...
*March 16, 2014 by anonymous*

**Calculus**

A holding pen for fish is to be made in the form of a rectangular solid with a square base and open top. The base will be slate that costs $4 per square foot and the sides will be glass that costs $5 per square foot. If the volume of the tank must be 50 cubic feet, what ...
*February 17, 2014 by Ann*

**Math :-)**

Explain why knowing the height is needed when finding the perimeter of a right triangle.
*February 9, 2014 by anon*