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In quadrilateral $BCED$, we have $BD = 11$, $BC = 9$, and $CE=2$. Sides $\overline{BD}$ and $\overline{CE}$ are extended past $B$ and $C$, r

In quadrilateral $BCED$, we have $BD = 11$, $BC = 9$, and $CE=2$. Sides $\overline{BD}$ and $\overline{CE}$ are extended past $B$ and $C$, respectively, to meet at point $A$. If $AC = 8$ and $AB = 5$, then what is $DE$?

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Guest Dec 22, 2019

738

help, I can't figure it out

John noticed that the angle formed by the minute hand and hour hand on a standard 12-hour clock was 110 degrees when he left home after 6 p.m.; it was also 110 degrees when he returned before 7 p.m. that same night. If he left home for more than five minutes, read more ..

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Guest Dec 22, 2019

408

help

There are two circles that have their centers on the x-axis, pass through the origin, and are tangnet to the cirlce (x - 7)^2 + (y - 6)^2 = 25. Find the radius of the smaller of the two circles.

Guest Dec 22, 2019

590

help

Find the sum of all the numbers between 0 and 20000 which is divisible by 99.

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Guest Dec 22, 2019

521

Question about a question.

So I need help with this problem:

How many different non-congruent isosceles triangles can be formed by connecting three of the dots in a 4x4 square array of dots like the one shown below?
read more ..

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Guest Dec 22, 2019

509

Help thx

What is the ratio of the width to length of a folded sheet of paper if the rectangle formed when the sheet is folded in half (as shown below) is similar to the original rectangular sheet? Express your answer as a common fraction in simplest radical form. read more ..

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Guest Dec 22, 2019

1072

Help pls!

My trip to work is 120 miles. If I go 8 mph faster than my usual speed, I'll get to work 30 minutes earlier. How long does my trip take, in hours, if I go my usual speed?

Hi, what I have so far are the equations 120=rt read more ..

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Guest Dec 22, 2019

712

help

Solve for real x:

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Guest Dec 22, 2019

819

+119

Help please with an algebra functions problem

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OlympusHero Dec 22, 2019

794

help

Solve the system x/(x^2 + y^2) = 1 and y/(x^2 + y^2) = 2.

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Guest Dec 22, 2019

1930

help

If three standard, six-faced dice are rolled, what is the probability that the sum of the three numbers rolled is 9? Express your answer as a common fraction.

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Guest Dec 22, 2019

677

help

If (cos(A) - sin(A))/(cos(A) + sin(A)) = (1 - sqrt(3))/(1 + sqrt(3)) and 0 < A < 90, then find A.

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Guest Dec 22, 2019

745

help

For y > 0, the given curve 2y^2 + x^2 = 64 is moved 5 units to the right. Find the point of intersection (x,y).

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Guest Dec 22, 2019

669

help

In the square ABCD, E is the midpoint of AB. A line is drawn from E, perpendicular from CE, and intersecting AD at F. Find the ratio of angle BCF to angle BCE.

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Guest Dec 22, 2019

642

help

A blue square is divided into five congruent rectangles. If the perimeter of one rectangle is 36, find the perimeter of the blue square.

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Guest Dec 22, 2019

672

help

Below shows a sphere inscribed inside a cylinder. Find the ratio of volumes between the sphere and the cylinder.

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Guest Dec 22, 2019

684

help

Find the volume of the solid

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Guest Dec 22, 2019

616

help

There is a cone.The slant height of cone is 6√3 and radius is 3√3. There is a sphere inscribed in the cone(touching its base and curved surface). Find the radius of sphere.

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Guest Dec 22, 2019

-1

744

+312

GEOMETRY VII

The line joining (3, 2) and (6, 0) divides the square shown into two parts. What fraction of the area of the square is above this line? Express your answer as a common fraction.

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mathleteig Dec 22, 2019

515

help

Triangle ABC is a right triangle with the 90 degree angle located on Angle A. Point W is a point on segment AB, Point X on segment AC, and Points Y and Z on Segment BC such that WXYZ is a square.

If BZ = 6 and YC = 8 (the measure read more ..

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Guest Dec 22, 2019

Dec 21, 2019

660

help

Find the largest three-digit number (written in decimal notation) that is divisible by 22 and such that the sum of the units digit and the tens digit is 11.

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Guest Dec 21, 2019

479

Help

We call a number memorable if every digit in the number is either a $1$ or adjacent to a $1.$ For example, the numbers $111,$ $81,$ $101,$ and $1771$ are all memorable, but the numbers $12321,$ $786,$ $140,$ and $1999$ are not memorable.
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Guest Dec 21, 2019

791

algebra 1

On a normal day, I can walk from my house to school in three quarters of an hour. The return trip takes me the same amount of time. My mom, driving our car, covers that distance in about a quarter of the time that it takes me. If I go to school five days read more ..

ElectricPavlov ●

Guest Dec 21, 2019

662

help

In triangle ABC, AC = 3, BC = 4, and AB = 5. A semicircle with its center on segment AC is tangent to AB and BC. Find the radius of the semicircle.

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Guest Dec 21, 2019

586

HELP PLEASE !! i need this quickly :(

assuming that p and q do not equal 0, simplify

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Guest Dec 21, 2019

All Questions ⁺⁰237643 Questions

In quadrilateral $BCED$, we have $BD = 11$, $BC = 9$, and $CE=2$. Sides $\overline{BD}$ and $\overline{CE}$ are extended past $B$ and $C$, r

help, I can't figure it out

help

help

Question about a question.

Help thx

Help pls!

help

Help please with an algebra functions problem

help

help

help

help

help

help

help

help

help

GEOMETRY VII

help

help

Help

algebra 1

help

HELP PLEASE !! i need this quickly :(

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