All Questions

-1

1544

+956

@Hectictar

A guitar player plays a 440 Hz note, and then increases the effective length of that same guitar string by a factor of two and plays it again. What is the new frequency?

By any chance do you know any physics ? read more ..

●

Julius Jan 20, 2018

Jan 19, 2018

-1

1301

+593

Which 3 transformations have been performed on the graph of f(x) = 3 √x to obtain the graph of g(x) = −2 3 √x-1?

Which 3 transformations have been performed on the graph of f(x) = 3√x to obtain the graph of g(x) = −2 3√x-1?
1. reflect the graph over the x-axis
2. stretch the graph away from the x-axis read more ..

hectictar ●

jbouyer Jan 19, 2018

-1

3008

+593

Which quadratic regression equation best fits the data set?

Which quadratic regression equation best fits the data set?
A. yˆ= 179.246x2 −20.213x + 0.728
B. yˆ= 0.728x2 −20.213x + 179.246
C. yˆ= 0.728x2 +20.213x + 179.246 read more ..

●

jbouyer Jan 19, 2018

-1

2565

+593

Which quadratic equation fits the data in the table?

Which quadratic equation fits the data in the table?
A. y=x2−7x+1
B. y = x² + 7x + 1
C. y=−x2+7x+1 read more ..

●

jbouyer Jan 19, 2018

-1

2398

+593

Help.

The equation y=−0.065x2+6.875x+6200 models the amount y of sugar (in pounds per square foot) produced where x is the amount of fertilizer (in pounds per square foot) used.
What is the best approximate for the amount read more ..

●

jbouyer Jan 19, 2018

817

Please Help

The formula 180(n-2) gives the number of degrees in the angles of a convex polygon because n-2 triangles can be drawn (with no lines crossing) in a polygon with n sides, each triangle containing 180 degrees. In how many ways can a convex heptagon be divided read more ..

●

Guest Jan 19, 2018

4692

+39

Need Help...Urgently, due at 6:00 Tommorrow!! Plz help me with a proof

Answer to each blank to correctly complete the explanation for deriving the formula for the volume of a sphere.

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r read more ..

●●●

wertyusop Jan 19, 2018

2146

+1438

HELP URGENT!

How many rectangles are there whose four vertices are points on this 3 by 3 grid?

read more ..

●●

SmartMathMan Jan 19, 2018

1515

+267

Solving linear Diophantine Equations with a matrix equation

Is there a way to solve a diophantine equation of the type ax+by=c with ONLY a matrix equation, i.e without making use of for example Euclidean algorithm or Modular math. I want to set up the equation above as something of the sort AX=B where X is the[x,y] read more ..

●●●

Quazars Jan 19, 2018

-1

5344

+39

Another Geometry Proof Question (Help Me Fill In The Blanks!!)

Have an answer to each box to correctly complete the derivation of a formula for the area of a sector of a circle.
Suppose a sector of a circle with radius r has a central angle of θ
. Since a sector is a fraction of a _____ read more ..

●●

wertyusop Jan 19, 2018

876

+1438

HELP URGANT!

In the sequence 1, 2, 2, 4, 8, 32, 256...,
each term (starting from the third term) is the product of the two terms before it. For example, the seventh term read more ..

●

SmartMathMan Jan 19, 2018

-1

1510

+112

Plato Classroom Question #13

Match each expression to its equivalent expression with the rational denominators.

Tiles
read more ..

●●●●

SpaceModo Jan 19, 2018

1194

+1438

help

With two straight cuts, we can divide a flat pancake into four pieces:
What is the fewest number of straight cuts that will divide a read more ..

●●

SmartMathMan Jan 19, 2018

-1

2520

+112

Plato Classroom Question #12

Tom has that he wants to use to buy pens and pencils. However, he does not want to buy more pens than pencils. A pen costs , and a pencil costs . Which graph represents this scenario? (Here, represents the number read more ..

●●

SpaceModo Jan 19, 2018

-1

696

+956

Physics?

a paleontologist uses a magnifying glass to look at a T-Rex skull. IF the lens has a focal length of 12 cm and she is holding it 9 cm away from the skull
a) Where is the image?
b) What is its magnification?
c) How large would the read more ..

●

Julius Jan 19, 2018

-1

723

+1438

help

How many rectangles are there whose four vertices are points on this 3 by 3 grid?

read more ..

ElectricPavlov ●

SmartMathMan Jan 19, 2018

688

Help! System of equations 3 questions

**Solve using the linear combination method**
1.
4x + y = 4
2x + y = 6 read more ..

●●●

Guest Jan 19, 2018

1009

+1438

help

Pat has two sheets of large, square stamps. One sheet consists of 9 stamps arranged in a 3-by-3 square. (That's 3 stamps by 3 stamps, not 3 inches by 3 inches.) The other sheet consists of 36 stamps read more ..

●

SmartMathMan Jan 19, 2018

979

+1438

help

Thea has a key on her calculator marked *. If an integer is displayed, pressing the * key chops off the first digit and moves it to the end. For example, if 6138 is on the screen, then pressing the * key changes the display to 1386.
Thea read more ..

hectictar ●●

SmartMathMan Jan 19, 2018

7773

Please help??

You and a friend go to Taco Bell for Lunch. You order three soft tacos and three burritos and your bill totals out to $11.25. Your friend’s bill is $10.00 for four soft tacos and two burritos. How much do soft tacos cost? How much do burritos cost? read more ..

●

Guest Jan 19, 2018

1067

+14

I dont know what to say.

Im new hello all of these smart people

off-topic

●●●●●●●●●

WilliamR1478 Jan 19, 2018

615

Help me please?

I don't know how to graph this

ElectricPavlov ●

Guest Jan 19, 2018

752

Algebra 2 Help

1.
2. read more ..

ElectricPavlov ●●

Guest Jan 19, 2018

662

Help Please ASAP

Hi, can you please help me solve the simultanious equation with the steps of how to do it.

x^2 + y^2 = 25
3x + y = 5 read more ..

Melody ●●●

Guest Jan 19, 2018

All Questions ⁺⁰230450 Questions

@Hectictar

Which 3 transformations have been performed on the graph of f(x) = 3 √x to obtain the graph of g(x) = −2 3 √x-1?

Which quadratic regression equation best fits the data set?

Which quadratic equation fits the data in the table?

Help.

Please Help

Need Help...Urgently, due at 6:00 Tommorrow!! Plz help me with a proof

HELP URGENT!

Solving linear Diophantine Equations with a matrix equation

Another Geometry Proof Question (Help Me Fill In The Blanks!!)

HELP URGANT!

Plato Classroom Question #13

help

Plato Classroom Question #12

Physics?

help

Help! System of equations 3 questions

help

help

Please help??

I dont know what to say.

Help me please?

Algebra 2 Help

Help Please ASAP

6 Online Users

Top Users

Sticky Topics