Sunday

June 26, 2016
Number of results: 15,458

**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
*April 9, 2012 by Lauren*

**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...
*December 16, 2010 by Court*

**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*...
*June 26, 2007 by COFFEE*

**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.
*November 29, 2009 by sh*

**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
*February 26, 2012 by Hillcrest*

**Geometry **

Regular pentagons A and B are similar. The apothem of Pentagon A equals the radius of Pentagon B. Compare the areas. The area of Pentagon A is equal to 1.49 times the area of Pentagon B. The area of Pentagon B is equal to 1.49 times the area of Pentagon A. The area of Pentagon...
*April 7, 2016 by SkatingDJ*

**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...
*April 10, 2009 by Priscilla*

**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 ...
*November 16, 2006 by cheryl*

**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...
*September 29, 2012 by Nuvola*

**Math**

a parallelogram has a height of 5 cm and a base of 10cm. what happens to the area if the parallelograms measurements double to a height of 10cm and a base of 20cm? A. the area doubles.<my answer B. the area is quadrupled. C. the area stays the same. D. the area is cut in ...
*March 18, 2016 by keykat*

**Statitics**

The value given below is discrete. use the continuity correction and describe the region of the normal distribution that corresponds to the indicated probiality. The probability of fewer than 35 men are senators who are men a)the area to the left of 35.5 b)the area to the ...
*April 15, 2011 by Bella*

**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...
*January 24, 2013 by morgan*

**calc. 1**

You are designing a poster with area 625cm^2 to contain a printing area having margins of 1cm at the top and bottom and 5cm on the sides. Find the largest possible printing area. Round your answer to the nearest four decimal place. I am aware that i should recognize that area ...
*March 24, 2016 by mike*

**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?
*July 26, 2012 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.
*August 31, 2012 by Danielle*

**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...
*July 28, 2010 by Kate*

**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 17, 2007 by COFFEE*

**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...
*May 6, 2012 by marko*

**calculus(Lab)**

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

**Math**

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

**Math**

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

**Math 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
*December 29, 2012 by Alex*

**math**

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

**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
*October 27, 2010 by CeCe*

**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)
*November 14, 2011 by Anonymous*

**math**

7. What area remains when the area of a square with side 3 is subtracted from the area of circle with radius 2?
*August 22, 2014 by vincent*

**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 ?
*November 19, 2009 by Anne H.*

**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 ...
*May 21, 2011 by Anonymous*

**S.E.U**

The area A of a triangle with base b and height h is given by A= 1/2 bh. Find the area when b= 22 m (meters) and h= 26 m. The area is ??? m2
*February 5, 2016 by loda*

**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
*September 9, 2009 by sai*

**algebra 1A**

the area A of a triangle with base b and height is given by A=1/2h. find the area when b=16m(meters) and h=26. the area is 416m^2 is this correct? if not can you give me some direction? thanks
*September 17, 2009 by Lea*

**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?
*December 4, 2012 by Cathy*

**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
*September 14, 2013 by Anonymous*

**Math**

Find the perimeter and the area of the rectangle. I cant upload pics. Its a rectangle with 12cm at the bottom and theres a diaganal line going through and its 15cm Perimeter: 54 cm, Area: 180 cm^2 Perimeter: 54 cm, Area: 108 cm^2 Perimeter: 42 cm, Area: 180 cm^2 Perimeter: 42 ...
*May 5, 2016 by Amy Pond*

**calculus help lttle question**

find the area of the regin bounded by the graphs of y=-x^2=2x=3 and y=3. i don't need help solving the problem and but i am a little confused. ok the graph is a parabola and i drew a parobla with y= 3. now when find the area, am I finding the area on the top, above y=3 or on ...
*January 8, 2007 by david*

**How to find the enlarged area- Geometry**

Reposting.. The original area is 10 inch^2. If the area is enlarged by 120%, what is the new area? Please help. Thanks. Ten multiplied by 1.20 No, the answer is 14.4 Nope! bobpursley is right, a 120% increase of 10 inches^2 is 12 inches^2 Perhaps you stated the question ...
*April 13, 2007 by Jen*

**MATH - area question **

I need help on where to begin with this problem. You are installing a new deck around your pool. The pool is rectangular with the dimensions 8m by 4m. The deck will surround the pool and will have a width by 2m. What is the area of the deck? I know that A=LxW and that the Area...
*February 27, 2012 by Ali*

**calc**

find the area of the region bounded by y=4x, y=x^3, x=0 and x=2 Check this on paper, but in my mind I see the differential area (x^3-3x)dx integrate that from 0 to 2 y=4x and y=x^3 intersect when x=-2,0 and 2 the vertical boundaries are x=0 and x=2, so the area is the integral...
*May 2, 2007 by quita*

**Mathematics**

A landscape architect wants to maximise the area of a herbal garden. The fence around the perimeter of the area must be 60 metres long. The optimal width of the rectangular area is ?
*March 20, 2011 by Natascha*

**Mathematics**

A landscape architect wants to maximise the area of a herbal garden. The fence around the perimeter of the area must be 60 metres long. The optimal width of the rectangular area is ?
*March 20, 2011 by Natascha*

**math**

Consider the normal curve. (Give your answers correct to four decimal places.) (a) Find the area to the right of z = 0.00. (b) Find the area to the right of z = 1.1. (c) Find the area to the right of z = -1.86. (d) Find the area to the left of z = 1.48. (e) Find the area to ...
*May 28, 2013 by Ayden*

**geometry**

The lateral area of a prism is 144cm^2 (lateral area is surface area without the bases). If the height is double the width, and the length is triple the width, what is the surface area? I got the answer wrong; its supposed to be 196. Can anyone explain how to do the problem?
*April 28, 2011 by Anonymous*

**math**

The area of each of the four states shown of the united states is given as fractions, decimals or percents of the total area of the united states. Arrange the states in order from the largest area to the smallest area. California-4.25% Montana-1/30 New Mexico-0.072 Texas-9/125
*August 29, 2011 by HELP!!!*

**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*

**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 *

**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*

**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*

**Science Help**

How is an area's topography determined? A) By using an area's longitude and latitude B) By using an area's scale C) By using an area's elevation, relief, and landforms D) By using an area's elevation, longitude, latitude My answer is C, is this correct?
*April 11, 2016 by Mittens*

**Math**

Yesterday someone posted my exact question, but I can't find the answer. What is area/perimeter of capital letters: I, U, and J? I know that area= lxw P= add up all the sides The area part is hard to figure
*May 19, 2010 by Jenna*

**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*

**Pre-Calc**

Can anyone help with the following problem please...Thank u so much Let f(x) =|9x|. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)
*December 8, 2010 by Amy*

**Calculus**

How do you prove area of a circle? Integrate an incremental area dArea = r dr dTheta from r=0 to R, and Theta from zero to 2PI radians. Area= INT INT dTheta rdr dTheta Area= 2PI (1/2 R^2)= PI R^2
*March 1, 2007 by Abigail*

**Math**

The first question is this: Helen designs a rectangle with an area of 225 square units. Her rectangle is the largest rectangle (that is, with largest area) with whole-number side lengths that can be made from the perimeter of the rectangle. A. Whay are the length and width of ...
*February 25, 2013 by Gabby*

**algebra**

Can anyone help explain how to work this problem out? One factor in flood safety along a levee is the area that will absorb water should the levee break. the coordinates that make up the boundry area are (0,0),(2.8,2.1)and(4.3,4.4) what is the area of the land that would ...
*April 2, 2013 by lee*

**Math **

A children's play area is triangular. The sides of the play area measure 100 m 250 m and 275 m respectively. Find the area
*December 11, 2015 by Giuseppe*

**STASTICS**

If the median home price in your area has decreased in your area in the last 2 years, how does this differ from the mean price in your area? Please explain why and include examples.
*August 24, 2010 by sue*

**Algebra 2**

A rancher is fencing off a rectangular area with a fixed perimeter of 76 m. What dimensions would yield the maximum area? Find the maximum area.
*January 18, 2012 by Peter*

**Math**

5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in2. What is the radius, including the units? Area of a circle is ¢³r2. 8)The triangle has an area of 14 in2. Determine the lengths of the sides of ...
*May 20, 2012 by Julissa*

**algebra**

In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.
*January 20, 2010 by chris*

**math**

In a particular house,the bedrooms take up 1/3 of the total floor area, and the living room takes up another 1/5.If the rest of the house has an area of 700 square feet,find the area of the living room and area devoted to bedrooms.
*January 20, 2010 by chris*

**math**

describe the largest pen area possible using the same amount of fencing in 6'X14' area. How do the perimeter and area compare to the pen above?
*September 25, 2012 by niemann*

**Algebra**

I have 104 feet to build a dog pen in a rectangle shape. Area=52x-x2 x= width What is the largest width to maximize the area? What is the area?
*April 16, 2013 by Amy*

**Differentiation**

The area of a blot of ink is growing such that after t seconds its area is given by A=(3t square +7) cm square. Calculate the rate of increase of area at t=5 second.
*May 9, 2016 by Shailly*

**Differentiation**

The area of a blot of ink is growing such that after t seconds its area is given by A=(3t square +7) cm square. Calculate the rate of increase of area at t=5 second
*May 9, 2016 by Shailly*

**math **

1) on a map of scale 1cm to 250m the area of car park is 3cm^2.what is the actual area of the car park in hecares(1 hectare= 10,000m^2) 2)The area of the playing surface at wembly stadium is 3/5 of a hectare . what area willit occupy on a plan drawn to a scale of 1:500?
*May 29, 2011 by Reshma *

**Math (Area)**

I need help on where to begin with this problem. You are installing a new deck around your pool. The pool is rectangular with the dimensions 8m by 4m. The deck will surround the pool and will have a width by 2m. What is the area of the deck? I know that A=LxW and that the Area...
*February 27, 2012 by Ali*

**Algebra**

a farmer fences off a small.rectangular plot of land thay is 60 feet by 100 feet. within that area, a garden is planted and surrounded by a walkway of uniform width. how wide is the walkway if the area of the planted area is one half of the area of the plot?
*December 1, 2015 by Thomas*

**math**

how would you find the surface area of a cylinder with 1.7m for the diameter, and 3m for the height? would you use the formula S.A = 2pi x r x h, or S.A = area of two congruent circles + area of rectangle?
*December 9, 2008 by beeca*

**Math, Quadratic Functions**

Eighty metres of fencing are available to enclose a rectangular play area. Determine the dimensions that will enclosed the maximum area. What is the maximum area?
*January 16, 2015 by Sharon*

**geomtry**

The figures are similar. The area of one figure is given. Find the area of the other figure to the nearest whole number. The area of the smaller trapezoid is 771 m
*April 19, 2016 by Anonymous*

**algebra**

The area a of a triangle with base b and height h is given by A=1/2bh. Find the area when b=30m (meters) and h =30m What is the area?
*May 3, 2011 by bee*

**Geoscience**

can you help me write out a geological time scale of an area located within stone mountain Georgia? I need a description of the area, how the rock transformed and was dated, picture of a map that has the longitude and latitude of the area picked, the history of the area, ...
*February 21, 2011 by Robin*

**Geometry**

Diagonals of quadrilateral ABCD intersect at O.If area of triangle ACB is 5 sq.units,area of triangle BCD is 9 sq.units,area of triangle CDA is 10 sq.units and area of triangle DAB is 6 sq.units,Find area of triangle AOB. Im begging you! pls I badly need an answer!! can you ...
*November 29, 2014 by Catrina*

**math**

A square storage area measures 10 m on a side. By how much must each side be shortened to decrease this area to less than half the original area? (3 marks - show your work)
*January 22, 2015 by Alex*

**math**

A square storage area measures 10 m on a side. By how much must each side be shortened to decrease this area to less than half the original area? (3 marks - show your work)
*January 26, 2015 by Alex*

**Geometry **

The area of a triangle is 96. If the base of a triangle is tripled and the height is reduced to one-third its original length, what is the new area? 3 1/3 9 The area would not change I'm stumped:/ Please help? Thanks
*April 6, 2016 by SkatingDJ*

**math?**

5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in^2. What is the radius, including the units? Area of a circle is ¢³r^2. 8)The 3 sided triangle has an area of 14 in^2. Determine the lengths of ...
*May 20, 2012 by neveah gomez*

**math**

one of the two numbers that can be both the perimeter and the area of the same rectangle I am assuming that you are seeking the two rectangles that have the area equal to the perimeter. A 4 x 4 square has a perimeter and area of 16. A 3 x 6 rectangle has a perimeter and area ...
*May 25, 2007 by Amanda*

**Math help!**

Hilda has a rectangular garden by the river in front of her house. The area she uses for planting tomatoes is three times as large as that she uses for beets. If she has 270 yards of fencing material to enclose the garden to protect it fro, rodents, will the total area attain ...
*April 29, 2015 by Yin*

**can xome1 help me plzz im stuck**

HELP PLZZ...A circle has radius 2 cm,(in that circle there is a traingle ABO) O is the centre of the circle. the chord AB has length 3 cm. . BO is 2cm AO is 2cm (i) Show that ÚAOB is 1.696 radians (to three decimal places). (ii) Hence ﬁnd the area of the (smaller) ...
*September 16, 2007 by hii*

**Math**

I have a practice question that I am stuck on and need help. A certain insect pest has infested a cornfield. The pests are spreading through the field in a circular pattern at the rate of 3m/day. When the radius of the infested area is 70m. How fast is the area of the infested...
*December 3, 2006 by Dave*

**science**

when you use a graph to solve a problem about how far a car traveled during a specified time during which it was accelerating how many area calculations do you have to make? what is/ are the shape/shapes you are calculating? a. one area calculation, a rectangle b. one area ...
*May 12, 2010 by carrie*

**Math**

Optimization Problem A right circular cylindrical can of volume 128tπ cm^3 is to be manufactured by a company to store their newest kind of soup. They want to minimize the surface area of the can to keep costs down. What are the dimensions of the can with minimum surface ...
*March 15, 2013 by Kevin*

**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**

What means Area? Length x width area is the amount of area inside a figure or a shape figure
*January 27, 2007 by Student*

**Geometery**

How do I solve this? On my assignment it says find the area inside the square, but outside the circle, given that the radius of the circle is 2 ft. Use 3.14 for ^ I have a picture of a square with a circle in the square, with a base 6 ft. and height 6 ft. Here are the choices ...
*March 1, 2007 by Hayley*

**Pre-calc**

Can someone please show me the steps to this problem...Thanks in advance. Let f(x) = Ð9xÐ. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the graph of f(x)
*December 7, 2010 by Amy*

**Physics**

When Using A Graph To Solve A Problem About How Far A Car Traveled During Specified Time During Which It Was Accelerating, How Many Area Calculations Do You Have To Make? What Is/are The Shape/shapes You Are Calculating? ( I believe the answer is D) A. One area calculation, a...
*March 4, 2009 by Jenny*

**math stumped...**

is the solution of 1/3x=21? greater than or less than 21? the volume F of the cylinder is 65n cubic centimeters. the height of the cylinder is 5 centimeters. use the vomula v=Bh to find the area of the base of the cylinder? the total area of triangle is 44 sq in. the area of ...
*September 8, 2013 by scooby*

**math**

mrs.fuchs has 40yd of fencing to use to make a rectangular area for her garden.(she wants to keep the animals out!!!!) she pans to use part of the 26yd wall of her house as one of the sides of the rectangular area. - what whole dimension( lengh and width) should she use for ...
*October 26, 2010 by Katherine*

**math**

mrs.fuchs has 40yd of fencing to use to make a rectangular area for her garden.(she wants to keep the animals out!!!!) she pans to use part of the 26yd wall of her house as one of the sides of the rectangular area. - what whole dimension( lengh and width) should she use for ...
*October 26, 2010 by Katherine*

**Algebra**

How do you find the area of a shaded area in a triangle and assume the area of the largest triangle is one unit? If the largest (outer) triangle has area =1, and it has a base length b and height h, then (1/2) b h = 1 bh = 2 Then use whatever information you have on the base b...
*September 17, 2006 by Candace*

**math**

Triangle ADE is inside rectangle ABCD. Point E is half way between points B and C on the rectangle. Since AB is 8 cm and side AD is 7 cm. 1. what is the area of triangle ADE? 2. what is the ratio of the area of the triangle ABE to the area of triangle ADE? 3. What is the ratio...
*April 14, 2013 by natalie*

**maths**

A metal pipe is 63cm long. Inner diameter of a cross section is 6m and the outer diameter is 8cm find:-surface area of the base a , surface area of the base b , the outer curved surface area inner curved surface area total surface area
*November 8, 2012 by chaithu*

**Math**

Suppose you have 100ft of fence to make a play area for your dog. Does a square or circle provide more area? What other factors might you take into consideration in designing your play area?
*January 10, 2012 by Sara*

**Math**

Compute the area of a triangle with a base of 15 cm and an altitude of 10.5 in. Area (to the nearest tenth) = cm2 I plugged everything into the area formula which is A = (1/2)bh . A=.5x15x10.5= I got 78.75 rounded 78.8. The computer keeps saying I am wrong. What am I doing ...
*June 28, 2013 by sarah*

**Security**

What portion of the airport is designed and used for landing, take off, or surface maneuvering of aircraft? A. Control tower B. Air operations area C. Control functions area D. Exclusive area im confused between A and C
*May 25, 2016 by Amy*

**maths**

b) if the surface area of the base is increased by times its original surface area,(with the same vertical height),calculate the new surface area of the pyramid.
*April 5, 2011 by simrat*

**Geometry**

The circumference of a circle is 20 pi cm. Find diameter, radius, and area of the disk, the length of an arc of 90 angle and area of a 90 angle sector. Answer in terms of pi. d= ___ r= _____, disk area= _______ arc length =______, sector area =________
*February 26, 2015 by al*