All Questions ⁺⁰235546 Questions

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200

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sequences

If the 10th term of a harmonic progression is 21 and the 21st term of the same harmonic progression is -10, then find the 210th term.

Guest Feb 20, 2022

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297

1

help parabolas

Two parabolas are the graphs of the equations y= 2x^2 - 7x + 1 and y = 8x^2 - 25x + 13. Give all points where they intersect. List the points in order of increasing x-coordinate, separated by semicolons.

Guest Feb 20, 2022

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270

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Coordinates

A triangle is formed by the points (6,0) , (0,0) , (0,6). How many points with integer coordinates are in the interior of the triangle?

Guest Feb 20, 2022

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325

1

+72

Math check?

Is this correct?

https://prnt.sc/v0p4Bzh3gLnv

loona Feb 20, 2022

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298

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probability

9 cards are dealt to three people at random, so that everyone gets 3 cards. What is the probability that everyone gets a red card?
Reds(A,B,C) Blue(A,B,C). yellow(A,B,C)

Guest Feb 20, 2022

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293

2

Prime factorization of 2573 step-by-step

I'm trying to know this strange number

Guest Feb 20, 2022

Feb 19, 2022

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318

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Algebra

Let a and b with a>b>0 be real numbers satisfying a^2+b^2=4ab. Find a/b - b/a.

Guest Feb 19, 2022

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272

2

Domain & Range

Find the domain and range of and

Guest Feb 19, 2022

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345

2

What is the radius of the circle inscribed in triangle $ABC$ if $AB = 22, AC=12,$ and $BC=14$? Express your answer in simplest radical form.

What is the radius of the circle inscribed in triangle $ABC$ if $AB = 22, AC=12,$ and $BC=14$? Express your answer in simplest radical form.

Guest Feb 19, 2022

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178

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Coordinates

Find the area of the region satisfying the inequality x^2 + y^2 <= 4x + 6y + 18.

Guest Feb 19, 2022

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431

5

Prime factorization of 2023 step by step

How many factors

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Guest Feb 19, 2022

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308

3

System problem

Find a, b, c, d, e if

ab = 1
bc = 2 read more ..

Guest Feb 19, 2022

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345

1

+218

Weather Problem

The temperature changed throughout a certain day at a steady rate of
- 3 ° C every hour. If it was -8° C sometime between 2 pm and 2:20
pm, then the temperature was 9° C in the time interval

(Electric Pavlov tried to answer read more ..

MathyGoo13 Feb 19, 2022

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230

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Probability

If you randomly drew a number between 1 and 100,000, what is the probability that its digits sum up to a number from to ?

Guest Feb 19, 2022

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293

1

Coseno

cual es el seno de 25 ° 33 ′ 11 ′′

Guest Feb 19, 2022

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304

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Quadratic

Find the positive difference between the solutions to the equation 6t^2 + 30 = 41t + 7t - 2t^2.

Guest Feb 19, 2022

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282

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Algebra 1 Volume and Scientific Notation

The side length of a cube is 3.78 times 10 to the 3rd power ft. What is the volume of the cube?

Guest Feb 19, 2022

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299

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Algebra

Enter (A,B,C) in order below if A, B, and C are the coefficients of the partial fractions expansion of
(x^2 + 2x - 3)/(x(x^2 - 1)) = A/x + B/(x - 1) + C/(x + 1).

Guest Feb 19, 2022

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275

1

Geometry

We have a triangle triangle ABC and a point K on BC such that AK is an altitude to triangle ABC. If AC = 10, BK = 7, and BC = 14, then what is the area of triangle ABC?

Guest Feb 19, 2022

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167

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Graphing

What is the horizontal asymptote as x approaches positive infinity of
sqrt(4x^2 + 9x) - sqrt(4x^2 + x)
The horizontal asymptote is in the form y = k Submit k

Guest Feb 19, 2022

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182

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Trigomonetry

Two astrologers, one in Toronto and the other in London, are looking up at the same star in the sky. Both measure the angle of elevation from their position. The measurements are shown in the diagram. If the distance between the two people is approximately read more ..

Guest Feb 19, 2022

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286

1

Domain

What is the smallest real number x in the domain of the function g(x) = sqrt((x - 3)^2 - (x - 18)^2)?

Guest Feb 19, 2022

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512

5

+2668

Interesting probability question on Mathcounts

4 numbers are randomly selected from the subset . What is the probability that the product of the 4 randomly selected integers is a multiple of 14?

I got 4/81, but I have doubts about it, and I can't settle it. read more ..

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BuilderBoi Feb 19, 2022

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