Sunday

April 20, 2014

April 20, 2014

Number of results: 20,830

**6th G-Math**

1.What is a reasonable estimate for the area of a circle with radius 4 cm? A. Area=12cm^2 B. Area=16cm^2 C. Area=24cm^2 D. Area=48cm^2
*Monday, April 9, 2012 at 9:20pm by Lauren*

**Math**

I'm assuming length is depth. A rectangular solid has 6 sides, so the total area will simply be 6 times the area of one side. The area of one side is the area of square which is w*h. The volume of a rectangular solid is l*w*h. From Google, "The lateral area is the surface area...
*Thursday, February 28, 2008 at 10:52pm by Dan*

**8th grade math**

circle A has a raduis that is twice the length og the raduis of circle B. Which is an accurate statement about the relationship of these areas of circle A and B and y? a.the area of circle A is 4 times the area of circle B b. the area of circle A is twice the area of circle B...
*Thursday, December 16, 2010 at 10:18pm by Court*

**Calculus**

Area of triangle = 1/2(base)(height) = 1/2(x)(x^7)(e^(-7x) = 1/2(x^8)(e^(-7x) Area' = 1/2[x^8(-7e^(-7x)) + 8x^7(e^(-7x))] = 0 for a max/min of Area (1/2)e^(-7x)x^7[-7x + 8] = 0 -7x + 8 = 0 x = 8/7 or x = 1.142857 so max area = .000488145 test: take a slighter larger and a ...
*Tuesday, October 21, 2008 at 5:30pm by Reiny*

**physics**

Emf = d(Flux)/dt In this case, the area changes but B stays the same. d(Flux)dt = B*d(Area)/dt The area change is d(Area) = (circle area - square area)
*Monday, October 18, 2010 at 10:40am by drwls*

**Math - incomplete**

total area = lateral area + area of bases The area of the base is the area of a triangle with perimeter of 40 inches. unless you say more about the triangle, it's not possible to determine its area. If it's an equilateral triangle, the just figure the height by using the side ...
*Monday, August 26, 2013 at 3:34pm by Steve*

**math**

Calculate the area of a triangle by Area = (base*height)/2 You will get an area that matches one of the answers. If you don't, post how you calculated the area, and we will help you from there.
*Saturday, May 21, 2011 at 12:59pm by MathMate*

**Physics please help!!**

pressure=weightwater/area + weightoil/area = densitywater*g*h*area/A +densityoil*g*h*area/A = 1000*.302*9.8+901*.148*9.8 Pascals
*Wednesday, March 16, 2011 at 4:34pm by bobpursley*

**Math**

oh whoops no i didnt.lol. ok, so surface area is when you take the area of each face, and add it up. lateral area is like the surface area of an object, but the measurements of the base are not counted on lateral area. so, to solve this, you do: 257 sq in(surface area) -201 sq...
*Wednesday, May 18, 2011 at 7:18pm by Fabienne*

**maths**

In terms of surface area, does that refer to the remaining frosted area, or does it include the internal area where the slice was removed? (I assume that you will not include the surface area resting on the plate.) If the former, subtract the area of top of slice from total ...
*Thursday, April 22, 2010 at 6:55pm by PsyDAG*

**honors geometry**

area= 1/2(b)(h) area= 1/2(25)(14) area= 1/2(350) area= 175
*Thursday, May 12, 2011 at 3:12pm by Brianne*

**Math**

The surface area of a prism consists of two parts: 1. area of the bases 2. area of the sides. Even without knowing the dimensions of the bases, the area of the sides can be calculated if the perimeter is known: Side area = perimeter of base * height = 36 inches * 8 inches = ...
*Thursday, February 24, 2011 at 10:43pm by MathMate*

**Calculus**

How fast is the area of a square increasing when thh side is 3m in length and growing at a rate of 0.8m/min? I did Area=x^2 Area'=2x(x') x'=area'/2xz x'=0.8/((2)(3)) Where did I go wrong? Thanks in advance.
*Sunday, November 29, 2009 at 3:06pm by sh*

**Math**

volume = area of base * height so x y = 12/1.5 = 8 ft^2 y = 8/x base area = x y = 8 end area = 2 xh = 3 x side area = 2 y h = 3 y = 3*8/x = 24/x total area = 8 + 3 x + 24/x
*Monday, January 20, 2014 at 7:23pm by Damon*

**math **

I am sure that I have answered this one recently Let the width of the rectangle = w and the height = h 2w+2h=16 or w=8-h the area=wh or area = (8-h)h = 8h-h^2 =a there are a couple of ways to finding the maximum area. You could plot area against h and find where h is a maximum...
*Monday, September 19, 2011 at 7:20am by Dr Russ*

**SS**

Region means an area of the country. It could be a cold area, a wet area, a southern, northern, eastern or western area. It could also be a mountainous area.... There are any number of possible "regions". If you could give us what kind of region, then we could give you more ...
*Monday, August 10, 2009 at 3:38pm by GuruBlue*

**Calculus - Center of Mass**

Find the exact coordinates of the centroid given the curves: y = 1/x, y = 0, x = 1, x = 2. X = 1/Area*Integral from a to b: x*f(x)dx Y = 1/Area*Integral from a to b: [(1/2)*(f(x))^2]dx How do I find the area for this? Once I know that, is this the correct set up? X = 1/Area*...
*Tuesday, June 26, 2007 at 12:21am by COFFEE*

**college math 201**

I assume largest area. P=w+2l area= wl area= (50-2l)l area= 50l-2l^2 darea/dl= 0= 50-4l l=12.5, and w=25. In reality, one cannot adjust the size of a house to fit the area enclosed.
*Sunday, May 8, 2011 at 3:36pm by bobpursley*

**calculus**

Find the area between the graph of f and the x-axis over the interval [−4, 1] when f(x) = 4 + 4x. 1. Area = 34 sq. units 2. Area = 30 sq. units 3. Area = 28 sq. units 4. Area = 32 sq. units 5. Area = 26 sq. units
*Sunday, February 26, 2012 at 2:58pm by Hillcrest*

**Earth Science**

Two different areas of the United States receive the same amount of rainfall during a day. Area A has soil that contains many large pores and rocks made of sandstone. The soil in Area B is mainly heavy clay. Area A is a desert. Area B is a swamp. For each area (Area A and Area...
*Saturday, September 29, 2012 at 12:43pm by Nuvola*

**Math**

Subdivide the area into n vertical rectangles, each of width w=(3-0)/n. The (x-)position of the ith rectangle is x(i)=(i-1)(3/n)=3(i-1)/n. The height is h(i)=10x(i)+8 The area is a(i)=w*h(i) The total area is therefore A n ∑ a(i) i=1 Evaluate the summation and calculate ...
*Wednesday, May 25, 2011 at 6:09pm by MathMate*

**Math**

area path= area outer-area inner = PI (9^2 - 7^2)= PI*(81-49) figure that out. Now, bags of stones=1bag/5 * area
*Wednesday, January 29, 2014 at 7:26pm by bobpursley*

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

1) height h of ABCD and EGB is the same base of EGB = 1/3 AB area(ABCD) = h*AB area(EGB) = 1/2 h*(1/3 AB) = 1/6 h*AB 2) base of EFC = 1/2 base of EBF so area is 1/2 as well 3) if g = altitude from AD to BC area(EFC) = 1/2 * (2/3 g) * (1/3 BC) = 1/9 area(ABCD) So, I get area(...
*Wednesday, December 12, 2012 at 2:48am by Steve*

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

1) height h of ABCD and EGB is the same base of EGB = 1/3 AB area(ABCD) = h*AB area(EGB) = 1/2 h*(1/3 AB) = 1/6 h*AB 2) base of EFC = 1/2 base of EBF so area is 1/2 as well 3) if g = altitude from AD to BC area(EFC) = 1/2 * (2/3 g) * (1/3 BC) = 1/9 area(ABCD) So, I get area(...
*Wednesday, December 12, 2012 at 12:30pm by Steve*

**Algebra 1 (?)**

If you know the area of the equilateral triangle, Area = 1/2 ch Therefore h = (2c)area Do you know the area? If it is a right triangle, you have the Pythagorean Theorem. a^2 + b^2 = c^2, where c is the hypotenuse. However, there is no way we can find the "accompanying figure."
*Friday, May 3, 2013 at 5:26pm by PsyDAG*

**algebra**

A sheet of cardboard with an area of 10 square feet is made into a closed rectangular box. The four sides of the box have the same area and two ends have the same area. The area of each of the four equal sides is twice the area of each end. What is the area of each face of the...
*Thursday, January 24, 2013 at 7:50pm by morgan*

**pre calc. help!!!!!!**

i am building a rectangular swimming pool. the pool is to have a surface area of 1000 ft.^2. it also has a uniform walk way of 3 ft. surrinding it. X is the lengh of one side of the pool, and Y is te lengh of the other side. A.) express the area of the plot of land needed for ...
*Thursday, November 16, 2006 at 8:55pm by cheryl*

**Algebra**

Area=Length*Width Length = (2x-1)m Width = (x+2)m So, Area = (2x-1)(x+2)m^2 Substitute the "x" with 5. So, Area= (2(5)-1)(5+2)m^2 Solve for Area now Area= (9)(7)m^2 Area= 63m^2
*Tuesday, February 17, 2009 at 1:05am by Taneel*

**calculus**

area=1/2 b*h b=10cm h=10/2 sinTheta where theta is the angle between the two legs. area'=1/2 d (bh)/dtheta=1/2 b *cosTheta set area' to zero, then theta is 90 deg, so find largest area.
*Wednesday, September 2, 2009 at 10:09pm by bobpursley*

**3rd grade Math**

The original data is given in terms of area, but the width is not in the same units. If area 1 = x, then area 2 = 2x and area 3 = x + 3. If the total area = 18 square inches, then x + 2x + x + 2 = 18 Then you can solve for x. 4x + 2 = 18 4x = 16 x = 4
*Thursday, January 6, 2011 at 12:25am by PsyDAG*

**math**

It would help if you proofread your questions before you posted them. I assume that all of your "placements" are really placemats. Area = π * r^2 d = 2r Area of coaster = π * 3.5^2 Area of placemat = π * 7^2 Subtract area of coaster from area of placemat.
*Thursday, March 7, 2013 at 6:11pm by PsyDAG*

**math**

but remains less than the area of a circle... area pologon <A given So how can area ever be this? area pologon=A+A(1/3+..._ ?
*Friday, March 8, 2013 at 8:56am by bobpursley*

**geometry**

The area of an ellipse in the form (x*x/a*a)+(y*y)/(b*b)=1 is A=3.14*ab. For this ellipse, a+b=20. a. write the area of the ellipse as a function of a. b. Find the equation of the ellipse with an area of 264 square centimeters. c. Complete the table and make a conjecture about...
*Friday, April 10, 2009 at 7:22pm by Priscilla*

**Calculus (Area Between Curves)**

Since y^2 = x is not even defined left of the y-axis, the region is x<3: a triangle bounded by y=x+4, x=-3, y=-2 area = 3*3/2 = 9/2 -3<x<0: a rectangle, area 3*3=9 0<=x<=1: a curved triangular area area = Int(1-√x)dx [0,1] = (x - 2/3 x√x)[0,1] = (1...
*Wednesday, February 29, 2012 at 2:39pm by Steve*

**Algebra**

oo the area is in inches. yes the rectangles are something like that. Rectangle one: 4 x 2 = 8inches (area) Rectangle two: 8 x 4 = 32inches (area) Rectangle three: 9 x 9 = 81inches (area) sorry for any confusion
*Tuesday, March 11, 2008 at 7:12pm by Bretagne*

**Physics - Mechanics and Ocsillatory Motion**

find the area of the figure from x1 to x2. That area is the energy in joules added. Then set that area to difference in KE (KEf-KEi) use basic area under the curves (break it up into rectangles and add).
*Saturday, October 30, 2010 at 6:42pm by bobpursley*

**MATH**

area = constant * length ^2 1/4 area = constant * (length/x)^2 x^2 = 4 x = 2 divide all lengths by 2 area scales with square of length ratio if photo is 10 by 20, area - 200 divide lengths by 2 5 by 10 , area = 50 which is 1/4 of original area
*Monday, February 17, 2014 at 7:43pm by Damon*

**math**

A childrens play area is triangular. The sides of the play area measure 90m ,225m and 255m respectively . Calculate the area of the play area?
*Thursday, July 26, 2012 at 10:20pm by donovan*

**Math**

A children's play area is triangular. The sides of the play area measure 90m, 225m and 255m respectively. Calculate the area of the play area.
*Friday, August 31, 2012 at 11:41pm by Danielle*

**Calculus**

area=int y dx over limits area=int(1/3 x^4 -4) dx area= 1/15 x^5 -4x over limits area=1/15-4-(-1/15+4)=2/15-8 reduce that. Area negative means below the x axis. area= 7 13/15= 7.866 And here is a neat numerical integration applet to demonstrate it. enter xo=-1, x1=1, 10 steps...
*Thursday, December 8, 2011 at 11:55pm by bobpursley*

**math**

There are a number of prism shapes. In all cases the surface area of a prism is the area of the ends plus the area of the sides. Lets look at a regular triangle prism (i.e. a toblerone shape) with sides a and length l. The ends are equilitaeral triangles so the area is a^...
*Monday, April 27, 2009 at 10:00am by Dr Russ*

**geometry!! urgent (math)**

The base area equals six times the area of an equilateral triangle with side length 20 cm (since six equilateral triangles make up a hexagon). Multiply that area by the base edge height for the volume. Add twice the base area to the area of the six 20x16 cm faces to get the ...
*Thursday, September 4, 2008 at 11:13pm by drwls*

**maths-urgently needed**

Let the corners of the square be at (0,0),(1,0),(0,1),(1,1) y=1-2x intersects y=(1-x)/2 at (1/3,1/3) So, in each of 4 quadrants, the exterior of the octagon is a trapezoid and a triangle trapezoid has area 3/16 triangle has area 1/48 sum has area 5/24 The 4 have area 5/6 The ...
*Tuesday, February 5, 2013 at 7:07am by Steve*

**Math**

area of sector/area of circle = 35/360 area of sector /49π = 7/72 area of sector = 343π/72 area of triangle with the chord as its base = (1/2)(7)(7)sin35° = (49/2)sin35 , Using area of triange = (1/2)(a)(b)sinĜ where a and b are sides with Ĝ the contained angle area ...
*Friday, March 22, 2013 at 9:36pm by Reiny*

**Algebra I**

Rectangle ABCD has vertices C and d on the x-axis and vertices A and B on part of the parabola y = 9 - x^2 that is above the x-axis. a.) Find the coordinates of A, B, C, and D in terms of x. b.) Determine the Area of the rectangle as a function of x. c.) What is the domain for...
*Wednesday, July 28, 2010 at 12:43pm by Kate*

**Algebra**

area= LW but 2W+L=600 L= 600-2W area= (600-2W)(w) well, roots are w=0, and w=300 that is where area is zero. Since a parabola is described here, the max will occur halfway, or w=150. Solve for Area when w=150 Plot Area vs W and see if this is so. Use your graphing calculator.
*Sunday, October 17, 2010 at 10:00pm by bobpursley*

**calculus**

your parabola is y = 5 - (1/5)x^2 let the points of contact of the base of the triangle be (x,y) and (-x,y) Then the area is Area = xy/2 = (x/2)(5-(1/5)x^2) = 5x/2 - (1/10)x^3 d(Area)/dx = 5/2 - 3x^2/10 = 0 for a max of Area 3x^2/10 = 5/2 x^2 = 25/3 x = ħ 5/√3 or appr. 2...
*Tuesday, October 5, 2010 at 8:07am by Reiny*

**math**

Considering all rectangles with the same perimeter, the square encloses the greatest area. Proof: Consider a square of dimensions x by x, the area of which is x^2. Adjusting the dimensions by adding a to one side and subtracting a from the other side results in an area of (x...
*Sunday, January 9, 2011 at 12:51pm by tchrwill*

**math 209**

Surely you can find the area of a triangle given the formula. A(5) means area when x is five. For the second, Area=1/2 base*height. You know ARea (x^2+5x+6), height is x+3, solve for base in terms of x.
*Monday, June 22, 2009 at 3:36pm by bobpursley*

**geometry**

The surface area of a square-based pyramid is the sum of the area of the 4 congruent isosceles triangles + area of the base (you will have to decide if the question includes the base area from the wording of the question)
*Thursday, March 22, 2012 at 6:12pm by Reiny*

**MATH 157**

the surface area of similar figures varies directly as the square of their corresponding sides so surface area(1)/surface area(2) = (1^2)/(3^2) = 1/9 so the surface area of the larger cylinder is 9 times that of the smaller.
*Wednesday, September 2, 2009 at 8:16pm by Reiny*

**math calc!**

under tripod area of base = 49/2 find area of section at constant z x = y = 7-z area = xy/2 = (7-z)^2/2 integrate area dz from 0 to 7 (1/2) integral[ 49 -14z + z^2]dz from 0 to 7
*Sunday, May 9, 2010 at 5:15pm by Damon*

**math**

Many authors define lateral surface area as the total area but not including any of the bases. So depending on how your text has defined it, lateral surface area = 4 times the area of the 4 rectangles = 4(7)(20) = 560 cm^2
*Tuesday, January 10, 2012 at 2:30am by Reiny*

**College Algebra**

Considering all rectangles with the same perimeter, the square encloses the greatest area. Proof: Consider a square of dimensions x by x, the area of which is x^2. Adjusting the dimensions by adding a to one side and subtracting a from the other side results in an area of (x...
*Tuesday, March 15, 2011 at 1:05pm by tchrwill*

**geometry**

Considering all possible rectangles with a given perimeter, the square encloses the greatest area. Proof: Consider a square of dimensions "x "by "x", the area of which is x^2. Adjust the dimensions by adding "a" to one side and subtracting "a" from the other side. This results...
*Sunday, March 20, 2011 at 5:15pm by tchrwill*

**maths**

To find the total area you would add the surface area of the base, not its circumference. Circumference is a linear measurement, not area. Whether or not the base area is included depends on the question. You will have to judge from the wording.
*Sunday, October 18, 2009 at 3:34am by Reiny*

**Math**

area= lw but 24=2L+2w or w=12-L area=l(12-l) Wondering if you have calculus yet....assuming not. table l area 4 32 5 35 6 36 7 35...already found max area, l=6, so w=6
*Thursday, May 3, 2012 at 7:26pm by bobpursley*

**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 ...
*Wednesday, January 25, 2012 at 5:32pm by Yoona*

**Volume and Surface Area**

Volume of any right pyramid: 1/3 areabase*height Surface area depends on the shape. area base + area of all sides
*Sunday, May 13, 2012 at 3:09pm by bobpursley*

**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...
*Monday, January 7, 2013 at 11:31am by Andrew*

**Math problem solving investigation: guess and chec**

The area of each square is twice the area of the next smaller square drawn in it. If the area of the smallest square is 3 square centimeters, what is the area of the largest square
*Saturday, December 29, 2012 at 8:29pm by Alex*

**Math**

Find the area of each circle. A = pi * r^2 Then subtract the smaller from the larger area. That will be the area of the ring.
*Wednesday, August 5, 2009 at 11:11am by Ms. Sue*

**physics**

No. You need to work with area expansion, find the new diameter from area, then the change in area.
*Thursday, September 23, 2010 at 7:41pm by bobpursley*

**algebra**

the area A of a triangle with base b and height h is given by A=1/2bh,find the area when b=28m(meters) and h=38m. The area is m
*Wednesday, October 27, 2010 at 9:20pm by CeCe*

**calculus**

Area of sphere = 4 pi r^2 (here r = 10 cm) d area/dr = 8 pi r d area/dt = d area /dr * dr/dt (chain rule) NOW dVolume/dt = area * dr/dt we are given d Volume/dt = 8 mL/min which is 8 cm^3/min from that and area = 4 pi r^2 get dr/dt then use that dr/dt up above to get d area/dt
*Saturday, January 3, 2009 at 5:09pm by Damon*

**Math**

width of pool ---> x length of pool --> x+7 area of pool = x(x+7) width of whole pool area = x+3 length of whole pool area = x+7+3 = x+10 area of pool area = (x+3)(x+10) area of concrete walkway = area of whole thing - area of pool solve 120 = (x+3)(x+10) - x(x+7) etc. (...
*Tuesday, November 16, 2010 at 5:16pm by Reiny*

**math**

Margin area = Total area - Picture area = (11 x 8) - (8 x 5) cm^2 = _____ ?
*Friday, January 28, 2011 at 12:48am by drwls*

**math**

Prob= success area/total area= (areasquare-areaquartercirlce)/area square.
*Wednesday, October 26, 2011 at 10:29pm by bobpursley*

**math**

the area of the circle was measured to be 29/30 of it original area.find the percentage error made in measuring area.
*Tuesday, April 14, 2009 at 4:10pm by abigail*

**English**

Maybe make it thematic? That is, concentrate on people who helped in the area of civil rights ... or in the area of saving orphans ... or in the area of medical help ... or whatever.
*Monday, February 1, 2010 at 4:33pm by Writeacher*

**financail Management**

In Area O, there will be more savers than spenders. Old people have usually accumulated more wealth and usually tend to have it in more conservative investments (i.e. fixed income instruments), whether they be bank deposits, bonds, etc. In Area Y, people will have more desire ...
*Saturday, May 21, 2011 at 11:10pm by Anonymous*

**Geometry**

A rectangular city block measures 105 by 88 meters.The city council wants to divide the block into two triangles of equal area. What is the length of the hypotenuse of each triangular area?( I already found the area of the whole rectangle and the area of each triangle)
*Monday, November 14, 2011 at 9:34pm by Anonymous*

**math**

Multiply the area of the rectangle by the square of the scale factor to get the area of reduced rectangle. Reduced area = 720 * (1/6)^2 Reduced area = 720 * (1/36) Reduced area = 720/6 Reduced area = ? sq in.
*Friday, March 4, 2011 at 1:18pm by Helper*

**Math 116 Algerba**

The area A of a triangle with base b and height h is given by A= 1/2 bh. Find the area when b= 29m (meters) and h = 20m. The area is ?
*Thursday, November 19, 2009 at 11:10pm by Anne H.*

**PHYSICS**

Your area A is wrong. It should be A = 3.5 cm * w, the cross sectional area through which the current flows. You wrote the surface area of the bar.
*Sunday, March 7, 2010 at 3:35pm by drwls*

**math**

The surface area of the water times change in height = change in volume approximately So, we can start finding the cross sectional area as a function of height. for example assume the area is 0 at 0 height then at height one the volume is one so the average area between 0 and ...
*Thursday, August 14, 2008 at 7:12pm by Damon*

**Data Management**

area=l*w= but 2L+2w=20 or w=10-L area= L(10-L) but L is random. 1,2,3,4,5 but less than 10 expected area, if L can be 1,2,3,4,5,6,7,8,9, then 5 is the mean, or average, or expected after many trials. Area= 25
*Tuesday, January 21, 2014 at 8:30pm by bobpursley*

**Math**

length x width = area (b+8) x b = area (b^2)+(8b)= area hope this helps...:D
*Saturday, July 5, 2008 at 8:58pm by kkk*

**math**

Well the area will be the sum of the area of a rectangle and either 1 or 2 triangles depending on what way you draw it. The area of the rectangle will be height*shorter length = 4*5 = 20 The area of the triangle will be (1/2)*base*height base of triangle in this case = longer ...
*Friday, December 5, 2008 at 7:48pm by Cianán*

**6th grade math**

The area of each square is twice the area of the next smaller square drawn in it. if the area of the smallest square is 3 square cms. what is the area of the largest square
*Wednesday, September 9, 2009 at 2:51am by sai*

**math**

Area of paper = 8.5*11 = 93.5 in² Area of text = 7*9 = 63 in² Area of margin =area of paper - area of text = ?
*Tuesday, May 24, 2011 at 9:58pm by MathMate*

**Physics**

The formula for resistance is: total resistance = (resistivity) * (length)/(area) filling in from the problem statement: 0.32 ohms = (resistivity) * 1m/(area) looking up the resistivity for tungsten: at 20 C restivity = 5.28 * 10^-8 ohms*m leaving just the area unknown: 0.32 ...
*Friday, February 8, 2008 at 1:51am by Quidditch*

**math**

If you are fencing all around, then a square will give you the largest area each side will be 150 m for an area of 22500 m^2 tyler's area is only 20000 m^2
*Wednesday, January 21, 2009 at 11:00pm by Reiny*

**Help with maths!**

The maximum area would be a square, so let x be the length of one side. 3x = 320 and x^2 = area Area ≠ 320y I hope this helps. Thanks for asking.
*Friday, June 19, 2009 at 6:06am by PsyDAG*

**Math**

Diana has 520 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed area. What is the maximum area?
*Tuesday, December 4, 2012 at 4:26pm by Cathy*

**Algebra**

what is the surface area of a rectangular prism with a base area 15m2, height 3m, and lateral area 18m2?? This is my question !!! PLEAS ANSWER
*Wednesday, March 10, 2010 at 1:10am by rachaekl*

**Math**

total area= (l+5n)^2 original area= l^2 new area= total area-original= 10*L*n+ 25n^2 check that with a drawing.
*Thursday, March 31, 2011 at 9:39am by bobpursley*

**Math word problem**

Isn't the diameter 4.3 m? Using that, find the area of the circle. But the square is 4.3 to a side, so compute the area of the square. Now for the inside, subtract the circle area from the square area.
*Friday, December 4, 2009 at 9:55pm by bobpursley*

**dma 040**

area of a certain state (state1) five times the area of another state(state2). If the sum of their area is 6,000,000 square miles, find area of each state
*Saturday, September 14, 2013 at 11:12pm by Anonymous*

**ms sue**

Area = (1/2)base x heigh = (1/2)(4-x)(2x+3) = (1/2)(12 + 5x - 2x^2) d(Area)/dx = (1/2)(5 - 4x) = 0 for a max area 4x = 5 x = 5/4 using x = 5/4 = 1/25 Maximum Area = (1/2)(4-5/4)(5/2+3) = 7.5625 or appr 7.5625 testing: our answer t= 5/4 = 1.25 let x = 1.24 , area = (1/2)(4-1.24...
*Monday, January 28, 2013 at 7:31pm by Reiny*

**math (pre clac)**

a) x^2 + y ^2 = 4 area = 4 |x y| (so it works in each quadrant) y = sqrt(4-x^2) area = 4 x sqrt(4-x^2) b) the area can be 0 (at x = 0 and x = 2)and it has a maximum at x = y = sqrt 2 to show that take derivative and set to zero 0 = -4 x^2/sqrt(4-x^2) +4 sqrt(4-x^2) 0 = -4x^2...
*Friday, April 25, 2008 at 4:55pm by Damon*

**precalc**

assuming a rectangular fenced area, let parallel length = x area = x(1000-x)/3 = 1/3 (1000x-x^2) Just figure where the vertex of the parabola is, and that will give you the maximum area.
*Thursday, September 19, 2013 at 12:10am by Steve*

**Math Can someone check my answers ?**

Jai is right. Surface area confused me too but I assumed area since a one dimensional circle must be area.
*Sunday, November 3, 2013 at 10:59pm by DrBob222*

**algebra 1...urgent**

* area of a circle is r^2 times pi r=9s so r^2 is 9s^2. Multiply this by 3.14 to get the area of the circle. You can't actually solve it with a number since there is a variable involved. * Area of a square is length times width * If s=1, the area of the circle is 9^2 x 3.14. ...
*Wednesday, March 5, 2008 at 9:24pm by msp*

**geometry**

word problem You and 3 friends order a 24 in pizza (the diameter is 24 inches) what is the area of the pizza? Round to the nearest tenth. If you and 3 friends spit the pizza evenly, how much do you get to eat? What is total area? and what is your area? for total area i got 452...
*Sunday, May 6, 2012 at 8:25pm by marko*

**geometry**

Surface area is proportional to Diameter^2, so the area will be (1/2)^2 = 1/4 of the original area, which is 8 in^2.
*Thursday, March 1, 2012 at 11:00pm by drwls*

**math**

the rectangle has area 10*20 = 200 each circle has area pi*5^2 = 25pi You don't say which area is shaded, but I think the answer should be clear by now.
*Sunday, August 4, 2013 at 10:19pm by Steve*

**Math**

Area = pi* R^2, where "pi" is a constant Area is proportional to radius R squared. If R is multiplied by 2, the area gets multiplied by 2^2 = 4. Just multiply the original area by 4. The other answers are: 3^2 = 9 times and 4^2 = 16 times larger.
*Monday, March 10, 2008 at 6:45am by drwls*

**Copperbelt international college**

Draw a diagram. If the angle subtending the chord is x, sin(x/2) = 2.8/3.5 = 0.8, so x/2 = 0.927 The area of a segment is 1/2 r^2 (x-sinx) So, the smaller segment has area 1/2 * 3.5^2 * (2*.927-.8) = 6.46 The area of the whole circle is pi * 3.5^2 = 38.48 so, the area of the ...
*Friday, February 15, 2013 at 1:07am by Steve*

**Algebra**

Do you mean per square foot of pool surface area or of pool wall area? In either case, multiply that area by $11/ft^2 Since they have you the height, they might mean the wall area.
*Wednesday, November 14, 2007 at 5:42pm by drwls*

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