Saturday

December 10, 2016
Number of results: 122,599

**geometry**

Triangle NQP is an equilateral triangle with the measure of angle N=5x-2y and the measure of angle P=x+2y. Find the values of x and y.

*November 7, 2008 by Hannah*

**math**

find tan 30 degrees and tan 45 degrees using the 45-45-90 triangle therom and 30-60-90 triangle theorm

*March 25, 2013 by joan*

**Pre-calculus**

The area of a triangle wall on a barn is 160 square feet. Its length is 4 feet longer than twice the width. Find the length and width of the wall of the barn

*February 3, 2015 by Tamika*

**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 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*

**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*

**geometry**

1. Find the area of the parallelogram. (1 point) 3,302 ft2 3,484 ft2 3,752 ft2 4,020 ft2 2. Find the area of the triangle. (1 point) 21.84 cm2 21.2 cm2 10.92 cm2 10.6 cm2 3. Jorge plans to paint a bedroom wall that is shaped like a trapezoid. The bottom edge of the wall is 22....

*March 16, 2013 by Adia*

**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*

**trig**

A plane is flying 225 mph heading South 25°West. The wind is blowing South 80°East at 60 mph. What is the bearing of the plane? What is the smallest angle of the triangle? What is the largest angle of the triangle? What is the remaining angle of the triangle? What is the ...

*May 26, 2011 by Anonymous*

**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*

**Geometry**

One side of a triangle is x inches longer than another side. The ray bisecting the angle formed by these sides divides the opposite side into 3- inch and 5-inch segments. Find the perimeter of the triangle in terms of x.

*January 13, 2012 by Anonymous*

**Math**

Find the surface area of the right prism with the given features. The bases are right trapezoids with bases of lengths 8 and 14 perpendicular to one side of length 18; height = 11.

*April 10, 2015 by Suzy*

**algebra1please look over THANK YOU**

Mary is making a pinata that has a ball-like shape. The pinata has a surface area of 50 square feet. Use the formula for the surface area of a sphere: s=4(pi)^2 to find the radius of the pinata. Round your answer to the nearest hundredth. _____ feet i got 50=39.4 but don't ...

*July 3, 2013 by lisa*

**Maths**

What is the perimeter formula for an equilateral triangle?

*October 12, 2010 by Jannie*

**5th grade**

The square and triangle have the same perimeter 12cm.Each figure is made up of sides of equal measure.How long is each side of the triangle ?

*April 25, 2010 by Anonymous*

**Math**

Bren sets the table. He takes a square napkin and folds it in half. He makes a triangle. What two names can you use to describe the triangle?

*April 6, 2012 by Lynne*

**Geometry **

The volumes of two similar figures are given. The surface area of the smaller figure is given. Find the surface area of the larger figure. Smaller figure: V = 2 yd^3 SA = 13 yd^2 Larger figure: V = 250 yd^3 SA = ??? Please help? Thanks

*May 2, 2016 by SkatingDJ*

**calculus**

writing an exponential equation The function gives the value of a home in dollars in the year 1980 + t. Write an equation that can be used to determine the year in which the value of the home reached $100,000? Use ^ to denote an exponent. Do not solve the equation and do not ...

*September 5, 2006 by Joshua*

**Area Geometry**

Find the area of a decagon with a radius of 4mm. Find the area of an octagon with a radius of 10 cm.

*April 10, 2012 by hope*

**math**

is a triangle with sides 7-7-7 a right triangle

*March 19, 2010 by PAVLEEN*

**math**

can a right triangle be a scalene triangle?

*October 31, 2010 by gmoney*

**M.I.G**

Can a right-angled triangle be an isoscele triangle?

*January 24, 2013 by njebo*

**math**

if the angle of a triangle are in a ratoi 5:5:8 what is the triangle

*March 11, 2013 by khanyisile*

**math**

Is a triangle with sides of 25,20, 15 a right triangle?

*October 12, 2013 by Steve*

**Geometry**

My class is learning about the areas of regular polygons and circles and I'm so confused. How are you supposed to figue out the area a regular triangle inscribed in a circle when all you know is that the radius of the circle is 1.5?

*April 29, 2011 by Sam*

**geometry**

f equilateral triangle JKL is cut by three lines as shown above to form four equilateral triangles of equal area, what is the length of a side of one of the smaller triangles?

*March 29, 2012 by Anonymous*

**Calculus**

A box with a square base and no top is to have a volume of 32 ft3. What dimensions use the least amount of material (in other words what dimensions give minimum outside surface area)?

*May 24, 2015 by Maddie*

**algebra**

1)Use Pascal's triangle to expand (w-x)^5 2)Use the binomial theorem to find the third term in the expression of (n-2p)^6 3)Which is NOT a counterexample to the formula 1^2+3^2+5^2+...+(2n-1)^2=n(2n+1)/3 A.n=3 B.n=2 C.n=1 D.n=4 is it C thanks:)

*August 23, 2007 by Marissa*

**Science**

Need help with find area of a cylinder measurement are : 1. dia 3cm height 2in 2. dia 3.5cm height 2.5 3. dia 4cm height 3in 4. dia 4.5cm height 5in

*February 21, 2009 by Amanda*

**Math**

Sam wants to find the height of a window in a nearby building but it is cloudy. Sam puts a mirror on the ground between himself and the building. He tilts it toward him so that when he is standing up he sees the reflection of the window. The base of the mirror is 1.22 meters ...

*March 10, 2016 by Ashley*

**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*

**Math**

I know how to find the surface area of a rectangular prism but, I am not sure when given the coordinates of 4 feet by 6 feet by 8 feet which is which? For example: height, width, length? I don't know which way it goes? Thank You very much for any help you can give me.

*April 27, 2015 by Josh*

**MAth**

A cone has a base area of 33 in2 and is 8 inches tall. What is the volume of the cone in cubic inches

*July 5, 2012 by Jessica*

**Math**

A rectangle has sides of length x cm and 2x - 4cm and the length x cm at time t seconds is given by x = 2 + 3t, (t >=0) . Show that the area, Acm2 , the rectangle, in terms of t is A =12t + 18t^2 . Hence find the rate of change of the area at the instant when t = 2..... ...

*January 30, 2015 by Aaqib*

**Math**

Sam wants to find the height of a window in a nearby building but it is a cloudy day with no shadows. Sam puts a mirror on the ground between himself and the building. He tilts it toward him so that when he is standing up, he sees the reflection of the window. The base of the ...

*January 28, 2016 by Jiska*

**calculus**

A format for textbook page layouts is to be chosen so that each printed page has a 4-cm margin at the top and at the bottom and a 2-cm margin on the left and right sides. The rectangular region of printed matter is to have an area of 800 sq. cm. Find the dimensions for the ...

*May 10, 2007 by maricela*

**maths**

In a triangle ABC, AB = 2 cm, BC = 3 cm and AC = 4 cm. Choose the two options which give a triangle PQR which is similar to triangle ABC. Options: A. PQ = 1 cm, QR = 2 cm and PR = 3 cm. B. PQ = 1 cm, QR = 1.5 cm and PR = 2 cm C.PQ = 2.5 cm, QR = 1.5 cm and PR = 3 cm. D. PQ = ...

*April 20, 2007 by katie*

**geometry**

An isosceles triangle has two 10.0-inch sides and a 2w-inch side. Find the radius of the inscribed circle of this triangle, in the cases w = 5.00, w = 6.00, and w = 8.00. And Write an expression for the inscribed radius r in terms of the variable w , then find the value of w, ...

*April 11, 2010 by Johny G12*

**geomery**

An isosceles triangle has two 10.0-inch sides and a 2w-inch side. Find the radius of the inscribed circle of this triangle, in the cases w = 5.00, w = 6.00, and w = 8.00. And Write an expression for the inscribed radius r in terms of the variable w , then find the value of w, ...

*April 12, 2010 by Johny g12*

**Geometry**

An isosceles triangle has two 10.0-inch sides and a 2w-inch side. Find the radius of the inscribed circle of this triangle, in the cases w = 5.00, w = 6.00, and w = 8.00. Then Write an expression for the inscribed radius r in terms of the variable w , then find the value of w...

*April 16, 2010 by sarah b*

**geometry**

An isosceles triangle has two 10.0-inch sides and a 2w-inch side. Find the radius of the inscribed circle of this triangle, in the cases w = 5.00, w = 6.00, and w = 8.00. Then Write an expression for the inscribed radius r in terms of the variable w , then find the value of w...

*April 17, 2010 by sarah*

**Algebra**

A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 100 ft of fence? What should the dimensions of the garden be to this given area? The maximum area that can be ...

*November 21, 2011 by Kelly*

**Math**

How do you find a missing length in a triangle? I have two triangles. The lengths given are 18:27:x and the other one is 14:21:28.

*October 17, 2009 by Anonymous*

**Math**

The base of tringular field is twice its altitude. If the cost of levelling the field at the rate of Rs 10per m^2 is Rs 4000,find its base and altitude.

*September 9, 2012 by Simran kaur*

**Math**

A spherical balloon with a surface area of 36pi square inches is inflated further until its diameter has increased by 50%. The surface area of the balloon is now? I know the formula for surface area is A=4pi*r squared. I don't understand how you can figure the problem without ...

*May 11, 2014 by Gayle*

**MATH**

When a draftsman draws three lines that are to intersect at one point, the lines may not intersect as intended and subsequently will form an error triangle. If this error triangle is long and thin, one estimate for the location of the desired point is the ...

*October 2, 2015 by Anonymous*

**geometry**

given constant perimeter (people),Irene made a rectangle with an area (tables) of 196 sq. units. she finds that this is the largest area (greatest number of tables) possible for the given perimeter. Irene drew a rectangle with an area of 196 sq. units. she finds that this i ...

*March 20, 2011 by lily*

**Calculus **

1. Prove that, among all rectangles with fixed perimeter p, where p > 0, the largest in area is a square. 2. A 2 × 3 array of six congruent rectangular pigpens (that all look the same from above) will be in the overall shape of a rectangle R. We may use 100 feet of fencing...

*March 27, 2015 by Andy*

**Math HELP!**

Find the distance from the ferris directly to Butte. The picture is of an right triangle. On the left side length is has 42 mi. on the bottom of the triangle it has 56 mi. on the right side there is not number and at the top corner of the triangle it says Ferris on the right ...

*October 22, 2014 by Anonymous*

**Pre-Calculus**

Laws of Logarithms Without using a calculator use the change of base rule to evaluate 1. a) log(subscript8)32(hint use base 2) =log(subscript2 32)/log(subscript2 8) = 5/3 b) log(subscript36)1296. This one doesnt even give you a hint, so how do you know which base to use? Does ...

*October 16, 2012 by Shreya*

**Chemistry (Titration Curves)**

Which of the following Acid+Base titration combinations would have a buffering region in their plot? 1)Strong Acid+Strong base (HCl+NaOH) 2)Weak acid and strong base (Acetic+NaOH) 3)Strong Acid and weak base (HCl+NH3) 4)Weak Acid and weak base (Acetic+NH3) In all cases, there ...

*May 8, 2011 by Anonymous*

**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*

**Math**

Log base 10 of 9 = 0.95. Log base 10 of 2 = 0.30. Find log base 10 of (20/9)

*June 8, 2011 by Denny*

**geometry triangles**

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*

**6th G Math**

The school pep squad members wanted to make rectangular spirit flags with bases of 7 inches and heights of 8 inches. Each flag is divided evenly into a red triangle and a white triangle. How much fabric would be needed to make the white triangle for 100 spirit flags?

*April 7, 2012 by Jon*

**Math**

Consider the Dosage Formula y=(S/1.73 where y = childfs dosage, a = the adult dosage, and S = the surface area of the body in square meters. The Surface Area Formula is S(w,h)=0.0101w^(.425)*h^(.725) where S = the surface area of the body in square meters, w = the weight in ...

*February 15, 2012 by Fatih*

**Algebra**

A rectangle has dimensions in feet as shown in the figure it is 2x +5 And one side is 8. I need to write an expression for the area of the rectangle. B. Find the area of the rectangle, in sq.ft. if x=3 C. Find the value of x if the area of the rectangle is 160 square feet.

*October 3, 2016 by Shane*

**calculus**

The base of a solid consists of the region bounded by the parabola y=rootx, the line x=1 and the x-axis. Each cross section perpendicular to the base and the x-axis is a square. Find the volume of the solid.

*June 6, 2012 by Caitlin*

**math**

The sides of a triangle are in the extended ratio 2 6 7. If the perimeter of the triangle is 45 inches, then what is the length of the shortest side? A. 2 inches B. 3 inches C. 6 inches*** D. 12 inches The measures of the angle of a triangle are in the extended ratio 17 16 12...

*April 21, 2016 by sekerre*

**math**

Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=5x , y=3 and 2y+1x=6 It is easier to integrate with respect to the variable Area = Help!!!!

*January 25, 2014 by kitor*

**math**

The perimeter of a triangle is 26 c,. Side a of the triangle is 3 cm longer than side b. Side c is 1 cm shorter than twice side b. Find the length of each side.

*February 4, 2010 by sara*

**Geometry**

Given: line segment AD is congruent to line segment CD, <1 is congruent to <2 Prove: triangle ADB is congruent to triangle CDB

*October 18, 2007 by Kim*

**Geometry**

Given: segment AB is congruent to segment BC; angle 1 is congruent to angle 2 Prove: triangle ABC is congruent to triangle DEC

*March 11, 2013 by Constance*

**physics**

Water is leaking out of an inverted conical tank at a rate of 10700.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 7.0 meters and the diameter at the top is 4.0 meters. If the water level is rising ...

*December 10, 2015 by emily*

**Maths**

the figure below shows 3 similar circles that just touch one another.A,Band C are the centres of the circles.If the perimeter of the triangle ABC is 42cm, what is the total area of the unshaded part of the 3 circles. (take pie = 22/7)

*April 24, 2013 by Jeannie*

**trig**

the base of a trapezoid are 22 and 12 respectively. the angle at the extremities of one base are 65 degree and 45 degree respectively. find two legs?

*July 31, 2013 by kathy*

**Math**

Use division to convert the base ten numeral 35 to base five.

*August 24, 2011 by Shay*

**math**

What is the difference between B as in the longer base of a trapezoid and b as in base in terms of geometry?

*February 10, 2016 by Sami*

**4 CALCULUS study problem**

1. How fast does the radius of a spherical soap bubble change when you blow air into it at the rate of 15 cubic centimeters per second? Our known rate is dV/dt, the change in volume with respect to time, which is 15 cubic centimeters per second. The rate we want to find is dr/...

*January 9, 2014 by Samantha*

**Calculus ll - Improper Integrals**

Find the area of the curve y = 1/(x^3) from x = 1 to x = t and evaluate it for t = 10, 100, and 1000. Then find the the total area under this curve for x ≥ 1. I'm not sure how to do the last part of question ("find the the total area under this curve for x ≥ 1.") ...

*October 2, 2010 by Alyssa*

**Parametric curves and area**

1.The curve of x=49-t^2 and y=t^3-1*t makes a loop which lies along the x-axis. What is the total area inside the loop? 2.Find the area of the region enclosed by the parametric equation: x=t^3-7*t and y=4*t^2.

*March 10, 2009 by Kim*

**Physics help please!**

The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the center? (Diagram shows equilateral triangle with 500g masses at each point, the...

*November 14, 2011 by Me*

**Help w/Quattro Formula**

Am getting frustrated w/failing to get Quattro Pro formula right. Here's what I'm looking for: Col. A = Base period number Col. B = Given number this current period. Formula I need: If B >= A, what is %? (Example: A=20, B=30, the # I want should read 50.0, not 1.5) Further...

*July 20, 2006 by Al*

**algebra**

The sum of the length l and the width w of a rectangular area is 220 meters. (a) Write w as a function of l. w = (b) Write the area A as a function of l. A = (c) Find the dimensions that produce the greatest area. l = w =

*November 4, 2014 by Nate*

**chemistry**

If a hydrate of the formula decomposes when heated to produce HCl, what change would you expect to occur when a piece of blue litmus paper is held in the path of the vapor released? [Litmus paper is paper impregnated with an acid-base indicator that is blue in the presence of ...

*February 20, 2010 by David*

**Math**

Convert the number to the indicated base. 53six to base three

*March 14, 2010 by Tyga*

**chemistry**

A certain weak base has a Kb of 9.00x10^-7. What concentration of this base will produce a pH of 10.30?

*October 12, 2012 by encee*

**MA110/ help pleaae**

How do u solve 1000 base 10 compare to 200 base 10

*February 13, 2013 by Enis *

**Chemistry**

A solution of an unknown base has a concentration of 0.250M, and a pH of 12.72. Calculate Kb for this base.

*September 5, 2013 by Tay*

**Calculus**

Please simplify the expression: 2log(base 4)9 - log(base 2)3

*July 8, 2015 by Alisha*

**Calculus**

A covered metal triangular trough is constructed as follows: A square shaped sheet of metal which is 70 centimeters wide and long square is folded along the center. Next, two pieces of metal in the shape of isosceles triangles are are welded to the ends. Finally, a metal cover...

*December 3, 2006 by Mike R*

**math**

Isosceles Triangle ABC is inscribed in a circle with radius 12cm. Aide AB is a diameter. Determine the perimeter of the triangle, correct to one decimal place.

*July 26, 2009 by Amy*

**Math**

The vertices of ΔABC are A(2, –5), B(–3, 5), and C(3, –3). The triangle is reflected over the x-axis. Use arrow notation to describe the original triangle and its reflection. a. A(2, –5), B(–3, 5), C(3, –3) --> (2, –5), (–3, 5), (3, –3) b. A(2, –5...

*April 7, 2016 by Queen*

**Auburn Hugh School**

The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs of measurements could be correct for the lengths of the two sides of the triangle? (Note:A^2 + B^2 = C^2)

*September 28, 2016 by abeo*

**math please help**

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 ...

*May 19, 2015 by stressed out over math*

**diffirential calculus**

considering the area of a circular ring as a increment of area of a circle, find approximately the area of a ring whose inner and outer radii are 3 inches and 3.02 inches, respectively.

*September 25, 2011 by kait*

**college physics**

a glass container was filled with oil with a density of 0.80 g/cm^3 up to 9 cm. in height. 1) what is the pressure at the base of the container? 2) what is the pressure if depth is 3 cm. from the surface of the oil? 3) what is the pressure if depth is 4 cm. above the base?

*September 8, 2010 by weng*

**math**

find the missing length in this diagram showing a T-square. (reduce the radical to simplist form. 6 cm (one side of triangle) 3 cm ( other side of triangle) the third side (diagonal line conecting other two sides)= x cm.

*March 3, 2010 by veronica*

**Algebra **

Hi I need help with this problem full solution only please: 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 2**

-Explain the difference between log base b of m plus log base b of n and log base b (m+n). Are they equivalent? -Explain the difference between log base b (mn) and ( log base b of m)(log base b of n). Are they equivalent?

*July 20, 2013 by Anonymous*

**chemistry**

A 4.50e-2 M solution of unknown monoprotic weak base has a pH of 10.200 what is the value of kb for the base

*April 28, 2010 by Nancy*

**algebra**

What would the first 15 counting numbers for base two and base four bases?

*May 12, 2010 by Kristi*

**algebra**

Triangle ABC has coordinates A(1, 4); B(3, –2); and C(4, 2). Find the coordinates of the image A'B'C' after a reflection over the x-axis? I have never done one where the triangle is already over the x-axis...do we flip it up or down?

*October 26, 2012 by Deborah*