All Questions

268

Graphing problem

The graph of (x - 3)^2 + (y - 5)^2 = 16 is reflected over the line y = x + 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.

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Guest Jan 19, 2022

369

+189

Off-topic

I got on the leaderboard on this very day when I made my account!

off-topic

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ImDecentAtMath Jan 19, 2022

334

+189

Interesting problem my friend had for me

Consider the following points (a,4/5) and (b,4/5) on the graph of and (a,c) and (b,d) on the graph of .
Furthermore, -pi/2

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ImDecentAtMath Jan 19, 2022

272

Algebra

Find a monic cubic polynomial P(x) with integer coefficients such that $P(\sqrt[3]{4} + 1) = 0$ . (A polynomial is monic if its leading coefficient is 1.)

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Guest Jan 19, 2022

246

Geometry problem

A sector of a circle has a central angle of 100. If the area of the sector is , what is the radius of the circle?

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Guest Jan 19, 2022

271

How to solve without graphing?

Hi,

I know that this question can be solved by graphing the two sides (the answer is -1), but is there a way to do it without?
read more ..

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Guest Jan 19, 2022

166

On the -plane, the origin is labeled with an . The points , , , and are labeled with 's. The points ,&nb

On the -plane, the origin is labeled with an . The points , , , and are labeled with 's. The points , , , , , , , and are labeled with 's. The points , , , , , , , , , , , and are read more ..

Guest Jan 19, 2022

247

Counting

You have 5 red shirts, 5 green shirts, pairs of pants, green hats and 8 red hats, all of which are distinct. How many outfits can you make consisting of one shirt, one pair of pants, and one hat without having the same color of shirts read more ..

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Guest Jan 19, 2022

283

Algebra

Find all values of c such that c/(c - 5) = 4/(c + 4).

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Guest Jan 19, 2022

142

Number Theory

For each positive integer n, let S(n) denote the sum of the digits of n. How many three-digit n's are there such that n == S(n) + S(S(n)) (mod 9)?

Guest Jan 19, 2022

166

Digit counting

The product of all digits of positive integer M is 105. How many such Ms are there, with four digits?

Guest Jan 19, 2022

244

help with geometry

D is on side BC of triangle ABC. We know $ABC \sim ACD$ and angle A = 49 degrees. If BC = CD, what is angle B in degrees?

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Guest Jan 19, 2022

Jan 18, 2022

276

Algebra

Rationalize the denominator of $\frac{2}{3\sqrt{5} + \sqrt{11}}$ and write your answer in the form $\displaystyle \frac{A\sqrt{B} + C\sqrt{D}}{E}$, where $B < D$, the fraction is in lowest terms and all radicals are in simplest radical form. What is read more ..

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Guest Jan 18, 2022

173

Speed and Time Problem

Stan’s wife used to drive him to the train station and then he'd take the train and go to work. At the end of the day, he'd get on the train to come home. When he arrived back at the train station, his wife would meet him there precisely when he got off read more ..

Guest Jan 18, 2022

335

+189

Melody pls help

So I saw Melody's hint from this link: https://web2.0calc.com/questions/pls-help-if-possible
but I didn't understand how to use it. If you are able to, please help.
Also, I had a question at this link: https://web2.0calc.com/questions/idk-how-to-do-this_6#r4 read more ..

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ImDecentAtMath Jan 18, 2022

252

Counting problem

How many different positive three-digit integers can be formed using only the digits in the set {2, 3, 5, 5, 5, 6, 6, 7, 8} if no digit may be used more times than it appears in the given set of available digits?

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Guest Jan 18, 2022

269

whats 3.909090909 rounded the the unit

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Guest Jan 18, 2022

233

whats 3.909090909 rounded?

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Guest Jan 18, 2022

279

MATH DUE TODAY

It is a beautiful day at the beach and ten beach volleyball players have shown up at the volleyball courts. Each two-person volleyball team should consist of a setter and a spiker. Five of the players prefer to be a spiker, four of the players prefer to read more ..

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Guest Jan 18, 2022

259

PLEASE HELPPP!

How many positive integers x satisfy x-4<3?

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Guest Jan 18, 2022

252

Number Theory problem

Let f(x) = x^2 - x + 201. What is the greatest common divisor of f(100) and f(101)?

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Guest Jan 18, 2022

281

whats 9.454545455 rounded

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Guest Jan 18, 2022

269

Pls help Melody

Calculate the sin of ([arccos(-1/9)]/2).

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Guest Jan 18, 2022

279

Maths

Hunter and Amanda drove separately to a park that is 27 kilometers away. Hunter left at 8:50 a.m. and arrived at 10:38 a.m. Amanda left at 11:19 a.m. and arrived at 12:49 p.m. Amanda drove her car at a rate that averaged 3 kph faster than Hunter. What were read more ..

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Guest Jan 18, 2022

428

counting

How many ways can the letters in BEEKEEPER be rearranged so that two or more Es do not appear together?

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Guest Jan 18, 2022

All Questions ⁺⁰230469 Questions

Graphing problem

Off-topic

Interesting problem my friend had for me

Algebra

Geometry problem

How to solve without graphing?

On the -plane, the origin is labeled with an . The points , , , and are labeled with 's. The points ,&nb

Counting

Algebra

Number Theory

Digit counting

help with geometry

Algebra

Speed and Time Problem

Melody pls help

Counting problem

whats 3.909090909 rounded the the unit

whats 3.909090909 rounded?

MATH DUE TODAY

PLEASE HELPPP!

Number Theory problem

whats 9.454545455 rounded

Pls help Melody

Maths

counting

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