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216

Function

If
f(x) = x^2 - 5 if x >= -4
f(x) = 3x + 20 if x < 4
then for how many values of x is f(f(x)) = 5 read more ..

Guest Jun 23, 2022

293

+91

help asap

Let n be the least positive integer greater than 2021 such that
(n+2)/3,(3n+4)/5,(4n+5)/9
are all integers. Find the sum of n's digits.

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Derekshackk Jun 23, 2022

297

Graphing

The graphs of y=3-x^2+x^3 and y=1+3x-2x^2+x^3 intersect in multiple points. Find the maximum difference between the y-coordinates of these intersection points.

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Guest Jun 23, 2022

221

Domain

What is the domain of the function f(x) = (x + 6)/sqrt(x^2 - 3x)?

Guest Jun 23, 2022

-1

307

Please help

If , evaluate .

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Guest Jun 23, 2022

307

help algebra

Let a and b be real numbers such that a+b=-1 and a-b=2. Compute a^2-b^2.

BuilderBoi ●

Guest Jun 23, 2022

Jun 22, 2022

302

Geometry

Two sectors of a circle of radius 12 overlap as shown, with P and R as the centers of the respective circles. Determine the area of the shaded region.

read more ..

BuilderBoi ●

Guest Jun 22, 2022

270

help plz

What is the ones digit of 1^2009 + 2^2009 + 3^2009 + ... + 2009^2009 + 2010^2009 + ... + 10000^2009?

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Guest Jun 22, 2022

281

Number Theory

If 1+12+123+1234+12345+123456+1234567+12345678 is congruent to n modulo 8, what is the value of n?

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Guest Jun 22, 2022

309

+91

Help pls :(

A positive integer N has 24 divisors. The number of divisors of N, 2N, 3N, 5N, and 7N is strictly increasing. What is the sum of N's digits?

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Derekshackk Jun 22, 2022

290

+91

HELP ANYONE PLS

Compute the sum of all positive integers that are equal to 105 plus their largest prime factor.

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Derekshackk Jun 22, 2022

308

+91

Help anyone pls im desperate

How many 3-digit numbers are there that have exactly 16 divisors?

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Derekshackk Jun 22, 2022

305

Domain

What real values of x are not in the domain of
f(x) = 1/((x^2 + 3x - 4)*(x^2 + 9x + 20))?

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Guest Jun 22, 2022

294

Number Theory

What is the remainder when 5^30*4^30 is divided by 7?

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Guest Jun 22, 2022

269

Help

3 cards are chosen at random from a standard 52-card deck. What is the probability that they can be arranged into a group of three consecutive cards, all of the same suit? For this problem, an Ace can either come before a 2 or after a King, but not both read more ..

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Guest Jun 22, 2022

294

Triangle

In any isosceles triangle ABC with AB = AC, the altitude AD bisects the base BC so that BD = DC. If AB = AC = 25 and BC = 18, then determine the length of the altitude .

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Guest Jun 22, 2022

271

Number Theory

Let S = 1 + 2 + 3 + 4 + ... + 209 + 2010 + 2011 + ... + 4000. What is the residue of S, modulo 2010?

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Guest Jun 22, 2022

310

PLS SOMEONE I NEED HELP

How many 3-digit numbers are there that have exactly 16 divisors?

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Guest Jun 22, 2022

302

Fractions

There exist several positive integers $x$ such that $\frac{1}{x^2+x}$ is a terminating decimal. What is the smallest such integer?

CPhill ●●

Guest Jun 22, 2022

306

weird fraction

What is the numerical value of x = ?

BuilderBoi ●

Guest Jun 22, 2022

311

HELP PLS

There are three consecutive positive integers. The smallest one is a multiple of 3, the middle one is a multiple of 5 and the largest one is a multiple of 7. What is the smallest possible sum of those three integers?

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Guest Jun 22, 2022

296

+91

HELP ASAP

Compute the sum of all positive integers that are equal to 105 plus their largest prime factor.

●

Derekshackk Jun 22, 2022

310

help solve

Solve for x:
(3x + 12)(3x + 4) = (4x^2 + 8x + 18x^2)/(2x).

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Guest Jun 22, 2022

292

algebra

An aqarium tank is 1/6 full of water. When 2 gallons of water are added, the tank becomes full. What is the total capacity of the aquarium tank, in gallons?

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Guest Jun 22, 2022

320

help algebra

If I give my brother 5 dolalrs, then we will have the same amount of money. If instead he gives me 14 dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?
read more ..

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Guest Jun 22, 2022

All Questions ⁺⁰237783 Questions

Function

help asap

Graphing

Domain

Please help

help algebra

Geometry

help plz

Number Theory

Help pls :(

HELP ANYONE PLS

Help anyone pls im desperate

Domain

Number Theory

Help

Triangle

Number Theory

PLS SOMEONE I NEED HELP

Fractions

weird fraction

HELP PLS

HELP ASAP

help solve

algebra

help algebra

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