All Questions

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1235

1

+1450

Marina solved the quadratic equation 9x^2-18x-720=0 by completing the square.

Marina solved the quadratic equation 9x^2-18x-720=0 by completing the square. In the process, she came up with the equivalent equation (x+r)^2 = s,where r and s are constants. What is s?

hectictar ●

AnonymousConfusedGuy Oct 22, 2017

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856

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Still confused could I get more help please Alan?

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Same process as for https://web2.0calc.com/questions/the-quadratic-x-2-20x-36-can-be-written-in-the-form, except you now compare the coefficient of the x^2 term as well. read more ..

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AnonymousConfusedGuy Oct 22, 2017

0

1125

1

+314

How do you identify odd and even functions from their graphs?

supermanaccz ●

ISmellGood Oct 22, 2017

+1

1622

4

+1450

If we express 3x^2-6x-2 in the form a(x-h)^2+k what is a+h+k

If we express 3x^2-6x-2 in the form a(x-h)^2+k what is a+h+k

Thanks this one confused me

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AnonymousConfusedGuy Oct 22, 2017

0

2563

1

+1450

The quadratic x^2-20x+36 can be written in the form (x+b)^2+c where b and c are constants. What is b+c

The quadratic x^2-20x+36 can be written in the form (x+b)^2+c where b and c are constants. What is b+c

Thanks for the help guys (and gals)!

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AnonymousConfusedGuy Oct 22, 2017

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1019

2

Expand 5(5x + 1)

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Guest Oct 22, 2017

0

837

2

coumpoiund interest

12,500 = 5000 ( 1 + r/1 ) 1(5)

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Guest Oct 22, 2017

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686

1

help me!

49229`s lowest divadable number with no decimals (it must be a prime number)

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Guest Oct 22, 2017

0

1144

1

Simplify 36:72 in ratio

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Guest Oct 22, 2017

0

621

2

Two Multiples.

What are the two multiples to get 1508629006561?

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Guest Oct 22, 2017

0

1108

4

+40

Here's a mind-boggler

A positive whole number that is the same when reading from right to left and left to right is called a palindromic number. If all of them were put into a sequence that is from small to big:1,2...11,22...,101,111...,10001,10101,.....
read more ..

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yomyhomies Oct 22, 2017

0

809

1

y=2e^x find y if x=3 e is 2.71828 how do I solve this.

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Guest Oct 22, 2017

0

3055

1

+647

squares

The first square in a sequence of squares is in ABCD position. (We read the vertices by starting with the lower-left vertex, and going clockwise.)

Then, after rotating it 90 degrees clockwise, it is in DABC position. read more ..

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waffles Oct 22, 2017

0

1308

3

+647

What is the range of the function (3x+1)/(x+8)

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waffles Oct 22, 2017

0

928

1

+647

What is the domain of the function f(x) = sqrt6x-3

Melody ●

waffles Oct 22, 2017

0

821

1

+647

Find all values of x satisfying (sqrt4x-3) + (10/sqrt4x-3) =7

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waffles Oct 22, 2017

0

701

1

+654

Difficult Counting Problem

Can someone please help me with this problem.

1) Consider the equation 2u + v + w + x + y + z = 3. How many solutions (u , v , w , x , y , z) of non-integers does this equation have?

Melody ●

supermanaccz Oct 22, 2017

0

2223

1

+647

The domain of the function p(x) = x^2+4x+4 is(-infinity, infinity). What is the range?

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waffles Oct 22, 2017

0

769

1

+647

Thanks

Give an example of a quadratic function that has zeroes at x=2 and x=4, and that takes the value 6 when x=3. Enter your answer in the expanded form "ax^2 + bx + c", where a,b,c are replaced by appropriate numbers.

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waffles Oct 22, 2017

0

1533

1

+647

math

Find all values of t such that t - 1, t + 1, and 4 could be the lengths of the sides of a right triangle.

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waffles Oct 22, 2017

0

629

1

Perpetual Annuity

Our local barber wants to retire at 65 and have $1,000,000 in his retirement fund. He also wants to withdraw perpetual annuity payments, when he retires, for the rest of his life. He initially deposits $25,000 at the age of 35 and $7,500 thereafter at the read more ..

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Guest Oct 22, 2017

0

480

0

+470

How challenging is this problem I created?

I have 10 boxes and 12 books, where each box can hold a maximum of 4 books each. How many ways are there to place the books in the boxes?

On a scale of 1/10 how challenging is this problem to you?
read more ..

Mr.Owl Oct 21, 2017

All Questions ⁺⁰230543 Questions

Marina solved the quadratic equation 9x^2-18x-720=0 by completing the square.

Still confused could I get more help please Alan?

How do you identify odd and even functions from their graphs?

If we express 3x^2-6x-2 in the form a(x-h)^2+k what is a+h+k

The quadratic x^2-20x+36 can be written in the form (x+b)^2+c where b and c are constants. What is b+c

Expand 5(5x + 1)

coumpoiund interest

help me!

Simplify 36:72 in ratio

Two Multiples.

Here's a mind-boggler

y=2e^x find y if x=3 e is 2.71828 how do I solve this.

squares

What is the range of the function (3x+1)/(x+8)

What is the domain of the function f(x) = sqrt6x-3

Find all values of x satisfying (sqrt4x-3) + (10/sqrt4x-3) =7

Difficult Counting Problem

The domain of the function p(x) = x^2+4x+4 is(-infinity, infinity). What is the range?

Thanks

math

Perpetual Annuity

How challenging is this problem I created?

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