Monday

October 24, 2016
Number of results: 120,543

**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), B(3, 5), C(3, 3...

*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*

**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**

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*

**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*

**Geometry**

find the lengths of the sides of a triangle whose perimeter is 37. The measure of the first side of the triangle is 8 less than the second side, and the second side is twice the length of the third side

*February 10, 2011 by Zach*

**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*

**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*

**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*

**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**

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*

**Maths**

Triangle ABC has area equal to (90 X spuare root 3)/4 and perimeter equal to 30. Also, one of its angles is equal to 60∘. What is the product of the sides of ABC?

*May 29, 2013 by HELP~*

**Calculus**

The figure at the right consists of a rectangle topped by an isosceles right triangle. The area of the figure is 200 sq. feet. The minimum perimeter of the figure is ___ft.

*February 16, 2014 by Anonomous*

**Algebra**

Top of the rectangle is 2x+5 right hand side is 5. Write an expression for the area of the rectangle. Then find the area of the rectangle in square feet if x=3. Then I need to find the value of x if the area of the rectangle is 1y0 square ft. Help!!

*October 3, 2016 by Kimmy*

**maths**

a right angled triangle has legs a,b (a is greater than b).the right angle is bisected splitting the original triangle into 2 smaller triangles.Find the dist btw. the orthocentres of the smaller triangles.

*December 31, 2012 by Anonymous*

**Geometry **

A right triangle has exterior angles at each of its acute angles with measures in the ratio 13:14. Find the measure of the smallest interior angle of the triangle. 40 (degrees) 50 (degrees) 130 (degrees) 140 (degrees) Please help? Thanks

*October 21, 2015 by SkatingDJ*

**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*

**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*

**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*

**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**

How can I solve this problem. Find the missing length of the right triangle. 7 height and 24 length

*September 25, 2008 by PJ*

**maths**

b. The cross sectional area of a cylindrical pin is 38.1 cm2. The pin has a removed segment. If the height of the segment is 7% of the circumference, find the area of the removed segment.

*January 25, 2012 by rahul patel*

**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*

**math**

The first angle of a triangle is 24 more than the second. The third angle is twice the first. Find the measure of the angle of the triangle.

*November 15, 2010 by dan*

**GEOMETRY TRIANGLE **

IN TRIANGLE ABC, A POINT D IS ON AC SO THAT AB=BD. ANGLE ABC - ANGLE ACB = 30. FIND ANGLE CBD HELP NNNNNDEEEEEDDDD PLEASE

*October 24, 2013 by Barbie Lee *

**math**

A line with negative slope passes through the point P(5,2) and intersects the x-axis at the point A and the y-axis at the point B. a. Find the equation of the line for which the length of the segment AB is the smallest. b. Find the equation of the line for which sum of the ...

*February 22, 2015 by ani*

**math/formula 1**

how do i find the area of trapezoids and triangles

*January 5, 2008 by Anonymous*

**geometry**

What is the lateral area of a cylinder? How do you find it? Is there a formula?

*January 15, 2010 by Nicole*

**math**

Find the lateral area for the prism. what formula do i us for this?

*March 3, 2011 by danny*

**trigonometry**

please check my answers. 1.Find the area of the sector of a circle. r=11.8cm, theta-pi/7 radians I got 31.2cmsquared 2.Find the radius of a circle in which a central angle of pi/6radian determines a sector of area 76square meters. I got 17.03m 3.Find the measure(in radians) of...

*January 7, 2009 by y912f*

**anonymous**

1.) an account invested in a month market fund grew from $67,081.20 to $67,359.39 in a month. What was the interest rate, to the nearest tenth? 2.)you are due a tax refund of $760. your tax preparer offers you a no-interest loan to be repaid by your refund check, which will ...

*March 15, 2011 by math i have a few questions.hepl pls ty*

**Physics 30**

A point charge q=+4.7nC is placed at each corner of an equilateral triangle with sides of 0.21m in length. a) What is the magnitude of the electric field at the midpoint of the three side of the triangle? b) Is the magnitude of the electric field at the centre of the triangle ...

*April 5, 2012 by Derek*

**precal**

A contractor needs to know the height of a building to estimate the cost of a job. From a point 84 feet away from the base of the building, the angle of elevation to the top of the building is found to be 44 degrees and 23'. Find the height of the building. Round your answer ...

*October 8, 2011 by Antonia*

**math-PLEASE CHECK AND HELP**

find the surface area and volume of the right circular cylinder. The radius is 3 and height 6. This is what I put for volume: v=pir^2h pi(3cm)^2 6 cm= 54pi cm cubed can you please check this and show work on how to do the surface area? Thanks.

*May 16, 2010 by crystal*

**math**

please help, a field is in the form of a parallelogram whose base is 420m and height is 3.6 dam. find the cost of watering at 10 ps per sq.m

*June 2, 2011 by sonu*

**Algerba I**

a trapezuim has no sides parallel. Its area is given by the following expression 1/2(ah1 + bh2) Note: the 1 and 2 are small and almost under but beside the h A. Evaluate the expression for a = 5 ft 4 in., b = 2 ft 8 in., h1 = 4 ft 4 in., h2 = 6ft 4 in B. If a gymnast stands ...

*September 18, 2007 by Jordan*

**math**

Work the following area application problem. You are given the job of laying carpet for a six-story building. At each floor the dimensions of the floor are 75 meters in length by 40 meters in width. A stairwell takes up a space 2.5 m by 1.5 m, and cuts through each floor. If ...

*July 1, 2016 by C*

**Calculus **

A ball is thrown up on the surface of a moon. Its height above the lunar surface (in feet) after t seconds is given by the formula h=308t−(14/6t^2) Find the time that the ball reaches its maximum height. Answer = Find the maximal height attained by the ball Answer =

*October 28, 2014 by Hailey*

**geometry**

In the diagram, circle A is tangent to circle C, and segment BE is tangent to circle A. The radius of circle A is 11 meters and the radius of circle C is 8 meters. Find the area of triangle ABE to the nearest square meter.

*April 4, 2013 by joe*

**geometry**

A triangle has two angles that have measures of 22.5 degrees and 101 degrees. a. Find the measure of the third angle. b. Classify the triangle by its angle measures.

*January 23, 2011 by shane*

**Algebra - Math**

The medium side of a triangle is 9 more than 1/2 the shortest side,and the longest side is 4 times the shortest side. If the perimeter is 31 in. Find the lengths of the sides of the triangle

*November 21, 2015 by Licinia *

**Geo**

What is the formula to determine the median of an equilateral triangle?

*August 20, 2014 by Earl*

**I NEED HELP WITH THIS. PLZ **

Lesson 2:3-D Views Unit 2: Measurement Multiple Choice For questions 1-3, use the following model. 1. How many cubes are in the base of the model? (1 point) A. 3 B. 4 C. 7 D. 2 2.How many cubes would be shown in the right view of the model? (1 point) A. 3 B. 6 C. 7 D. 4 4. ...

*February 9, 2016 by Katrina*

**math**

There's a circle with that has a dot in the middle with two line going to the left and right that's is 16 m. I have to find the area of the circle. I have to give that exact area and an approximate area to the nearest square unit. Help?

*November 18, 2010 by Alex*

**math 107**

Use the following diagram of a flowerbed of petunias to answer the following questions. This diagram is a rectangle with ½ a circle on each end. The circle diameter is 22 feet, while the length of the rectangle is 60 feet. If you draw an X in the middle of the rectangle, you ...

*February 23, 2015 by kristie*

**math**

the radius of a circle when the numeric values of the circumference and the area are equal Start with what you know. If you know the formula the area of a circle, and the formula for the circumference of a circle, then you can set them equal to each other...from there you ...

*October 31, 2006 by mark*

**Math**

1) Rectangle ABCD has a perimeter of 106 inches. If the width is 7 inches, what is the length? 2) If X=7 inches, Y=11 inches, Z=15 inches, and H=6 inches, what is the area of the triangle?

*December 23, 2011 by Stupid Person*

**Math**

Byrons house has a roof with dimensions shown. (Roof: 1m Height, 7m Hypotenuses, 12m length) He knows that the average rainfall in his suburb is 30cm per year. Byron would like to install a cylindrical rainwater tank to hold the water that runs off the roof. The tank is to be...

*June 14, 2015 by Alex*

**measurements**

A cone and a cylinder have the same volume and the same base radius. If you are given only the height of the cylinder, is it possible to figure out the height of the cone? If so, how would you figure it out? Am thinking yes, because if they are the same in volume then the ...

*February 7, 2010 by rmz*

**Math**

A farmer with 8000 meters of fencing wants to enclose a rectangular plot that borders on a river. If the farmer does not fence the side along the river, what is the largest area that can be enclosed? Does that mean I have to consider it a triangle?

*September 12, 2009 by muffy*

**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... Please help me figure this out...

*October 27, 2012 by Deborah*

**Math**

The radius of the circumscribed circle of the triangle abc is 15cm. given that B is a 49-degree angle; find the length of the side AC

*September 7, 2010 by Crystal Johnson*

**trig**

Given a right triangle with legs 8 and 5, find the measure of the two acute angles. (Round to the nearest hundredth

*March 29, 2011 by kristy*

**math 118**

use divisions to convert the base ten numeral 555 to base six

*October 13, 2010 by kari*

**Geometry**

What is the volume of a regular pyramid if it has a square base, one side of the base measures 4 cm, and the altitude is 5 cm?

*July 31, 2011 by Brianna*

**Chemistry**

This a back-titration problem, the equation is (mass/molar mass * na)+ (Ma * Va* na) = (Mb * Vb* nb. do the na and nb variables refer to the moles of the acid and base, or the moles of H and OH? acid and base acid and base

*June 4, 2007 by Tucker*

**chemistry**

Classify each substance as either arrhenius acid or base: A) HF (aq) B) Ba(OH)2 (aq) C) H2SO4 (aq) D) NH4OH (aq) My work A) arrehenius acid B) arrhenius base C) arrhenius acid D) arrhenius base Am i right

*January 10, 2015 by ROSE*

**computer science**

how would 123 base 4 look in base 5 and why?

*October 8, 2008 by mb*

**math**

how do i solve this logarithm log(base 9)X + 3log(base 3)X = 14

*January 7, 2009 by kayla*

**Chemistry**

The pH of a 0.065 M solution of a weak base is 11.70. What is the value of Kb for this base?

*February 27, 2011 by Brian*

**Chemistry**

A certain weak base has a Kb of 8.10 Χ 10-7. What concentration of this base will produce a pH of 10.00?

*October 25, 2011 by Dana*

**chemistry**

A certain weak base has a Kb of 9.00 Χ 10-7. What concentration of this base will produce a pH of 10.34?

*October 21, 2012 by Kelly*

**Chemistry**

A 0.010M solution of base B is 15% dissociated. Calculate the Kb for base B.

*February 24, 2013 by James*

**chemistry**

A certain weak base has a Kb of 8.40 Χ 10-7. What concentration of this base will produce a pH of 10.34?

*March 26, 2013 by Anonymous*

**chemistry**

A certain weak base has a Kb of 8.40 Χ 10-7. What concentration of this base will produce a pH of 10.34?

*March 28, 2013 by Anonymous*

**chemistry**

A certain weak base has a Kb of 7.80 Χ 10-7. What concentration of this base will produce a pH of 10.17?

*May 19, 2013 by Lana*

**Chemistry**

If the pH of a 0.46 M aqueous solution of a weak base is 9.2, estimate the Kb of the base:

*August 1, 2016 by Damon*

**Math**

Perimeter is 95 cm, each leg is 7 cm longer than its base. How long is the base?

*September 1, 2016 by Rean*

**algebra 1**

the base of isosceles triagle is 5 m less than 4 times the length of a side. The perimeter is 67, find the length of each side and the base

*September 30, 2013 by Mayi*

**Algebra**

the base of isosceles triagle is 5 m less than 4 times the length of a side. The perimeter is 67, find the length of each side and the base

*September 30, 2013 by Mayi - In need of help - Please :) *

**Calculus**

Q. An open-top box with a square base is to have a volume of 62.5 square inches. What dimensions will yield the box of minimum surface area? I am getting 5" by 2.5" but not sure.

*March 3, 2012 by Casey*

**Maths**

A pedestal is constructed in the form of frustum of a pyramid, the sides of the square ends of the frustum being 360cm and 160 cm and slant height 260cm. Find volume , lateral surface area including area of the top and the cost of construction @ rs.50 /cubic metre and ...

*February 6, 2016 by Chaitanya*

**Physics**

3 charges sit on vertical equilateral triangle the side of each is 30.0 cm. if the triangle are A= +4.0 uC B=+5.0 uC and C=+6.0 uC (clockwise from top) what is the force on each charge? Can someone please explain me in detail i am really confuse :(((

*August 19, 2012 by sara*

**math problem triangle inequality help**

Two sides of a triangle are 11 and 17. How many possible lengths are there for the third side, if it is a positive integer? I tried listing them all but I get confused...Please help thank you!

*December 26, 2012 by Knights*

**math,trigonometry**

solve each triangle described below using Δ ABC : 1)a = 10, A = 16°, B = 49° 2)a = 8, b = 7, A = 88° I don't know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz help) this topic is Oblique triangle

*January 5, 2015 by Anonymous*

**Calc**

We assume that an oil spill is being cleaned up by deploying bacteria that consume the oil at cubic feet per hour. The oil spill itself is modeled in the form of a very thin cylinder as depicted below. Its height is the thickness of the oil slick. We assume that an oil spill ...

*February 25, 2008 by Anonymous*

**maths (trigonometry)**

The angle of elevation and angle of depression of the top and base of a mobile tower from a mobile handset are 60 degree and 30 degree respectively. If the distances of the top and the base of the tower from the mobile handset are 15m and 8m respectively, find the height of ...

*December 11, 2015 by keya*

**geometry**

How many square inches are in the lateral surface area and total surface area of an aluminum can with 2 1/2 in. diameter and 4 3/4 in. height? I've worked on this until I'm crossed-eyed and it's not coming out right!

*March 9, 2013 by tmouery*

**math**

can anyone help please, i need a simple formula for working out taxes.if i had any number i need to know what the base was before 16% tax was added. i know the formula if the tax was 17.5%,what ever the total is if you divide that by 47 then x that by 7 that will give you the ...

*April 15, 2007 by simon*

**Math**

The shorter edges of a 36 cm x 20 cm metalsheet are joined to form the vertical surfaces of a square base prism. What is the volume of the prism? what is the area of metal sheet required to make the top and the bottom of the prism.

*July 17, 2016 by John*

**Physics**

From the edge of the rooftop of a building, a boy throws a stone at an angle 24.0° above the horizontal. The stone hits the ground 4.40 s later, 104 m away from the base of the building. (Ignore air resistance.) Find the initial velocity of the stone. What's the magnitude and ...

*February 8, 2010 by Max*

**log graph**

How do you graph y= -log (base 5)(-x)? The written question is: Sketch above equation by first describing the transformations performed on the equation y= log (base 5)(x) And what is the inverse function? x=log (base 5)(y)?

*November 1, 2010 by Ali*

**Math **

I am doing a project, are my answers correct? 1. Find and simplify the volume-to-surface-area ratio for each of the three possible ice cube shapes. You can use this chart. |Shape| S/A Formula|Volume Formula Cube | S.A=6s^2 | V=s^3 6/s Sphere|S.A+4 pi r^2|V=4/3 pi r^3 3/r ...

*March 4, 2016 by Alexia Smith*

**Math: Functions**

A circular oil slick is expanding with radius, r in yards, at time t in hours given by r=2t-0.1t^2, for t in hours, 0<t<10. find a formula for the area in square yards, A= F(t), as a function of time.

*October 7, 2011 by Savana*

**Math**

The sum of the lengths of the sides of triangle ABC is 38in. The length of sides AB and BC are 14 inches and 11 inches. Find the length of side AC and classify the triangle.

*March 5, 2012 by Elaina*

**Algebra**

The hypotenuse of a right triangle is 13 inches long. The shorter leg is 7 inches shorter than the longer leg. Find the side lengths of the triangle.

*March 23, 2016 by Jewls*

**math**

triangle abc is reflected over the y-axis. What are the coordinates of the reflected triangle? Describe in words what happens to the x-coordinates and y-coordinates of the original triangle's vertices as a result of this reflection? I can't figure out how to describe what ...

*March 15, 2016 by Amanda*

**maths**

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

*June 8, 2007 by kat*

**trig**

find the value of x when: x= 5 log base 2 (1/16)+ 8 log base 3 (27)

*August 26, 2011 by pat*

**Math**

The circular area A in square centimetres of a healing wound is given by A(r)=πr^2 Where r =the radius in centimetres. Find the rate of change of the area with respect to the radius. My work: I'm not really sure if this is correct but I gave it a try. Dy/dx =π*2r^2-1...

*February 24, 2016 by Nicki*

**Math**

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

*March 10, 2016 by Ashley*