All Questions

3765

+239

How many of the first 500 positive integers are divisible by 3, 4 and 5?

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Firewolf Jun 17, 2018

785

Help!

The graph of $y=ax^2+bx+c$ passes through points $(0,5)$, $(1,10)$, and $(2,19)$. Find $a+b+c$.
thanks in advance

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Guest Jun 17, 2018

1437

In the game Deal or No Deal, participants choose a box at random from a set of one containing each of the following values:

In the game Deal or No Deal, participants choose a box at random from a set of one containing each of the following values:

read more ..

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Guest Jun 17, 2018

-2

2371

help please I got 1/32 which is incorrect

Jar A has exactly four red buttons and eight blue buttons. Carla then removes the same number of red buttons as blue buttons from Jar A and places them in an empty Jar B. Jar A now has of its original number of buttons. If Carla were now to randomly read more ..

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Guest Jun 17, 2018

996

stumbling

What is the greatest common divisor of all of the members of the set containing all numbers that are the product of four consecutive positive integers?

Melody ●●

Guest Jun 17, 2018

1030

oof

Find the smallest four-digit number that is divisible by each of the four smallest prime numbers.

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Guest Jun 17, 2018

941

hard problem

How many different positive values of x will make this statement true: there are exactly 2 positive two-digit multiples of x.

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Guest Jun 17, 2018

Jun 16, 2018

822

Please help!

How many ways are there to put 6 balls in 3 boxes if the balls are not distinguishable but the boxes are?

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Guest Jun 16, 2018

885

Find the probability of picking one of each four colours in the first tries without the marbles being replaced.

A bag contains 10 red marbles, 3 blue marbles, 7 white marbles, and 5 green marbles. find the probability of picking one of each four colours in the first tries without the marbles being replaced.

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Guest Jun 16, 2018

1827

How many paths are there from to , if every step must be up or to the right?

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Guest Jun 16, 2018

634

+541

HELP PLZ

The quadratic x^2-3x+1 can be written in the form (x+b)^2+c, where b and c are constants. What is b+c?

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xXxTenTacion Jun 16, 2018

770

+541

HELP PLZ

If the quadratic 3x^2+bx+10 can be written in the form a(x+m)^2+n, where m and n are integers, what is the largest integer that must be a divisor of b?

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xXxTenTacion Jun 16, 2018

706

In a certain isosceles right triangle, the altitude to the hypotenuse has length . What is the area of the triangle?

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Guest Jun 16, 2018

820

Question from AoPS- Algebra, Review Problem. Please help!!

At a certain amusement park, there is a bulk discount for tickets. If you buy up to 60 tickets in one order, the price for each ticket is $70. However if you buy more than 60 tickets in a single order, the price of every ticket is reduced by $1 for read more ..

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Guest Jun 16, 2018

730

Help!

The graph of the equation $y =ax^2 + bx + c$, where $a$, $b$, and $c$ are constants, is a parabola with axis of symmetry $x = -3.$ Find $\frac{b}{a}$.

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Guest Jun 16, 2018

585

Help! Thanks !

Find all numbers for which the system of congruences

has a solution.

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Guest Jun 16, 2018

711

Quadratics& Decimals

The quadratic x^2+(2.6)x+3.6 can be written in the form (x+b)^2+c, where b and c are constants. What is b+c (as a decimal)?

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Guest Jun 16, 2018

683

square of binomials question

If a is a constant such that 4x^2-12x+a is the square of a binomial, then what is a?

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Guest Jun 16, 2018

1011

+1246

Help!

The graph of the equation $y =ax^2 + bx + c$, where $a$, $b$, and $c$ are constants, is a parabola with axis of symmetry $x = -3.$ Find $\frac{b}{a}$.

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Lightning Jun 16, 2018

2066

+1246

Help!

The graph of $(x-3)^2 + (y-5)^2=16$ is reflected over the line $y=2$. The new graph is the graph of the equation $x^2 + Bx + y^2 + Dy + F = 0$ for some constants $B$, $D$, and $F$. Find $B+D+F$.

I'm confused... The answer is NOT 2. read more ..

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Lightning Jun 16, 2018

545

Quadratics

For two real values of n, the equation 4x^2+nx+25 has exactly one solution in x. What is the positive value of n?

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Guest Jun 16, 2018

2521

Percentages

A consumer report revealed the following information about three tubes of toothpaste. Bright is 60% more expensive than Fresh and has 25% less volume than Glow. Glow is 25% less expensive than Bright and has 33 1/3% more volume than Fresh. Fresh costs $1.00 read more ..

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Guest Jun 16, 2018

226

6132

locate the center of the wheel, and the standard equation of the circle defining its boundary.

An archeologist found the remains of an ancient wheel,which she then placed on a grid, and an arc of the wheel passes through the A(-7,0),B(-3,-4) and C(7,0), locate the center of the wheel, and the standard equation of the circle defining its boundary. read more ..

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Guest Jun 16, 2018

729

Tan of an angle

I need to use the calculator to calculate tan of -5/4 what are the steps please and is there a user guide available

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Guest Jun 16, 2018

All Questions ⁺⁰237796 Questions

How many of the first 500 positive integers are divisible by 3, 4 and 5?

Help!

In the game Deal or No Deal, participants choose a box at random from a set of one containing each of the following values:

help please I got 1/32 which is incorrect

stumbling

oof

hard problem

Please help!

Find the probability of picking one of each four colours in the first tries without the marbles being replaced.

How many paths are there from to , if every step must be up or to the right?

HELP PLZ

HELP PLZ

In a certain isosceles right triangle, the altitude to the hypotenuse has length . What is the area of the triangle?

Question from AoPS- Algebra, Review Problem. Please help!!

Help!

Help! Thanks !

Quadratics& Decimals

square of binomials question

Help!

Help!

Quadratics

Percentages

locate the center of the wheel, and the standard equation of the circle defining its boundary.

Tan of an angle

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