All Questions ⁺⁰237644 Questions

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799

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Suppose $r$ and $s$ are the values of $x$ that satisfy the equation \[x^2 - 2mx + (m^2+2m+3) = 0\]for some real number $m$. Find the minimum

Suppose $r$ and $s$ are the values of $x$ that satisfy the equation \[x^2 - 2mx + (m^2+2m+3) = 0\]for some real number $m$. Find the minimum real value of $r^2+s^2$.

Guest Mar 1, 2019

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902

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Kinda a math question, physics mechanical energy with spring system

A block of mass 4 kg is attached to a spring whose spring constant is k = 1.10 103 N/m. The block is free to slide on a flat frictionless surface. The block is pushed to compress the spring by 18 cm, and then released. Assume the potential energy of the read more ..

Guest Mar 1, 2019

0

1085

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+687

math

A cylinder shaped container has a radius of 30 cm and a height of 100cm. A glass sphere with a radius of 12 cm is placed inside the cylinder shaped container and then the container is completely filled with water.
What is the approximate volume read more ..

hoiuu Mar 1, 2019

+1

837

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+67

100 Hearts!!! Thank you

I'd like to thank CPHill, ElectricPavlov, HiylinLInk, Melody, Alan, Heureka, and everyone
It feels good to be a part of this community

-DBZ read more ..

off-topic

DivideByZero Mar 1, 2019

+1

1573

7

+687

A hollow crystal is made of glass that is 3 cm thick. The ball has a radius to the outside surface of 8 cm.

A hollow crystal is made of glass that is 3 cm thick. The ball has a radius to the outside surface of 8 cm.
What is the approximate volume of glass used to make the ball?

Use 3.14 to approximate π

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hoiuu Mar 1, 2019

+1

1736

4

HELPPPPP PLZ

You want to use square tiles to cover the top of a table you're making. The top is 30 inches by 18 inches. What is the side measure of the largest-sized square tile you can use to cover the tabletop without any overlap or cutting?
read more ..

Guest Mar 1, 2019

+1

927

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Difference Quotient

For function f, construct and simplify the difference quotient

f(x) = (x-4)/(x+3)

Guest Mar 1, 2019

+1

496

0

Help fast pls

Consider the matrix
and the parallelogram in the picture below:

Say that A maps to , to , to read more ..

Guest Mar 1, 2019

+1

1130

1

Let $\mathbf{A}$ and $\mathbf{B}$ be invertible matrices such that \[\mathbf{A} \begin{pmatrix} 2 \\ -1 \end{pmatrix} = \begin{pmatrix} 1 \\

Let A and B be invertible matrices such that

Calculate

Guest Mar 1, 2019

+1

4605

1

Let $\mathbf{A}$ be a matrix, and let $\mathbf{x}$ and $\mathbf{y}$ be linearly independent vectors such that \[\mathbf{A} \mathbf{x} = \mat

Let A be a matrix, and let x and y be linearly independent vectors such that
Then we have that

for some scalars a and b. Find the ordered pair (a,b).

Guest Mar 1, 2019

0

809

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+67

PSA: Please mark off topic posts as off topic

Here is how to do so: P:S:Thanks Mods!!!

off-topic

DivideByZero Mar 1, 2019

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832

1

+67

Direct the story update 2

When I grow up I hope to make Immigration laws fair and to make this website get better.
Beauty is an enormous, unmerited gift given randomly
Given randomly to the uncredited and not well fortuned, that...
A dream, all read more ..

off-topic

DivideByZero Mar 1, 2019

+1

862

2

Homework trouble

6.5 7 7.5 6.5 12 7 7.5

Range=
read more ..

Guest Mar 1, 2019

0

1175

2

help-geometry

There are two different isosceles triangles whose side lengths are integers and whose areas are 120(sorry).One of these two triangles, has two sides with length 17 and one with length 30. Determine the perimeter of the second triangle.
read more ..

Guest Mar 1, 2019

+5

2114

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+134

!!!Welcome To Web2.0calc!!!

♦♦♦Welcome Thanks For Chosing Web2.0calc♦♦♦ ----» We all Welcome You Here to our site and hope you like Being a part of Helping others. We all spend time to help you or others out. Any of us will gladly help you on any math question you have in Mind. We advise read more ..

off-topic

killersteve27 Mar 1, 2019

+1

721

2

Help please!

Let be a root of . Evaluate .

Guest Mar 1, 2019

Feb 28, 2019

-5

734

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+73

Given:

GAMEMASTERX40 Feb 28, 2019

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1270

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+687

A spherical tank has a radius of 6 yards. It is filled with a liquid that costs $7.50 per cubic yard.

A spherical tank has a radius of 6 yards. It is filled with a liquid that costs $7.50 per cubic yard.
What is the total value of the liquid in the tank?

Use 3.14 for π read more ..

hoiuu Feb 28, 2019

-4

730

2

+73

Use three different ways (graph, table, algebraically) to convince someone that...

Use three different ways (graph, table, algebraically) to convince someone that...

GAMEMASTERX40 Feb 28, 2019

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