All Questions

-1

898

+1206

help

Consider the circle defined by the equation . Find the sum of the coordinates of the center of the circle.

ElectricPavlov ●

Logic Jul 15, 2019

-1

945

+1206

help

The red parabola shown is the graph of the equation . Find .

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Logic Jul 15, 2019

-1

924

+1206

help

Geometrically speaking, a parabola is defined as the set of points that are the same distance from a given point and a given line. The point is called the focus of the parabola and the line is called the directrix of the parabola. Suppose read more ..

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Logic Jul 15, 2019

1583

+152

If the least common multiple of two 6-digit integers has 10 digits, then their greatest common divisor has at most how many digits?

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BIGChungus Jul 15, 2019

-1

787

+1206

help

Find the vertex of the graph of the equation .

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Logic Jul 15, 2019

-1

748

+1206

help

I choose a random integer between 1 and 10 inclusive. What is the probability that for the I chose, there exist no real solutions to the equation ? Express your answer as a common fraction.

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Logic Jul 15, 2019

-1

1139

+1206

help

The expression can be written as a combination of a square of a binomial and an integer. Find the integer.

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Logic Jul 15, 2019

928

+188

help please!

How many five digit even integers have a digit sum of 13?

edit: i dont want them listed I want a way to do it

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Mathgenius Jul 15, 2019

Jul 14, 2019

1154

+586

Help

Let a_n be the number obtained by writing the integers 1 to n from left to right. Therefore, a_4 = 1234 and a_12 = 123456789101112. For 1≤n≤100, how many a_n are divisible by 9?

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xXxTenTacion Jul 14, 2019

1104

+95

HLP

A polynomial of degree $13$ is divided by $d(x)$ to give a quotient of degree $7$ and a remainder of $3x^3+4x^2-x+12$. What is $\deg d$?

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Pushy Jul 14, 2019

865

Question

A shop sells 500 smartphones a week for each. A market survey shows that each decrease of on the price will result in the sale of an additional 10 smartphones per week. What price of the smartphone would result in maximum revenue, read more ..

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Guest Jul 14, 2019

725

Help please

1) Find a/b when
2) For each positive integer p, let b(p) denote the unique positive integer k such that . For example, b(6)=2 and b(23)=5. Find .
3) William Sydney Porter tried to perform the calculation read more ..

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Guest Jul 14, 2019

645

Help please

The quadratic ax^2 + bx + c can be expressed in the form 2(x - 4)^2 + 8. When the quadratic 3ax^2 + 3bx + 3c is expressed in the form n(x - h)^2 + k, what is h?

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Guest Jul 14, 2019

596

Help on this function problem. I don't understand the process!

A function is defined by f(0) = 0 and f(n) = f(n − 1) + 2n, for n > 0. Find f(4).

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Guest Jul 14, 2019

1116

+1495

help me please

What is the locus of the centers of all circles that are tangent to both of two parallel lines

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ManuelBautista2019 Jul 14, 2019

392

Please help

Find the integer $n$, $0 \le n \le 6$, such that \[n \equiv 100000 \pmod{7}.\]

Sorry, the LaTeX got mixed up.

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Guest Jul 14, 2019

637

Polar Equation Interval

State the smallest interval 0 <= theta <= k that gives the complete graph of the polar equation
r = 4cos(5*theta)

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Guest Jul 14, 2019

697

+586

Number Theory Help

Find the smallest positive integer N with the following property: of the three numbers N, N+1, and N+2, one of them is divisible by 2^2, one of them is divisible by 3^2, one is divisible by 5^2, and one is divisible by 7^2. read more ..

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xXxTenTacion Jul 14, 2019

921

double trouble 2.0

A:
If I choose four cards from a standard -card deck, with replacement, what is the probability that I will end up with one card from each suit?

B: read more ..

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Guest Jul 14, 2019

402

help

In how many ways can I place 5 different beads on a bracelet if rotations and flips of the bracelet are not treated as different arrangements?

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Guest Jul 14, 2019

756

Help please fast!

In the SmallState Lottery, three white balls are drawn (at random) from twenty balls numbered 1 through 20, and a blue SuperBall is drawn (at random) from ten balls numbered 21 through 30. When you buy a ticket, you select three numbers from 1-20 and one read more ..

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Guest Jul 14, 2019

805

+1712

HW PROB WARNING (again...)

This time, I want to CHECK my answer with you smart people. PROBLEM: Consider the parabola . What is the vertex of this parabola?
Enter your answer as a coordinate pair, that is, as where and are replaced by numbers.

read more ..

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tommarvoloriddle Jul 14, 2019

1092

+158

Help

The graph of the function is shown below. For all , it is true that . If , where and are integers, then find .

read more ..

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Havingfun Jul 14, 2019

Jul 13, 2019

1190

+26

very long math question

what is 11,111,111,111,111,111,111 minus 2,222,222,222?

the number with 1s has 20 1s and the number with 2s has 10 2s

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musicalnote Jul 13, 2019

All Questions ⁺⁰230468 Questions

help

help

help

If the least common multiple of two 6-digit integers has 10 digits, then their greatest common divisor has at most how many digits?

help

help

help

help please!

Help

HLP

Question

Help please

Help please

Help on this function problem. I don't understand the process!

help me please

Please help

Polar Equation Interval

Number Theory Help

double trouble 2.0

help

Help please fast!

HW PROB WARNING (again...)

Help

very long math question

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