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+0
237725 Questions
Jan 22, 2026
0
1
2
+963
Math
In the diagram below, chords $\overline{AB}$ and $\overline{CD}$ are perpendicular, and meet at $X.$ Find the diameter of the circle.
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booboo44
Jan 22, 2026
0
1
1
+963
Math
In triangle $XYZ,$ circles are drawn centered at $X$, $Y$, and $Z$, so that all pairs of circles are externally tangent. If $XY = 2,$ $XZ = 2,$ and $YZ = 2$, then find the sum of the areas of all three circles.
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booboo44
Jan 22, 2026
Jan 21, 2026
Jan 17, 2026
0
1
4
+1940
Math
All the sides of a triangle have integer length. The perimeter of the triangle is 10, and the triangle is scalene. How many such non-congruent triangles are there?
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tomtom
Jan 17, 2026
0
1
1
+1940
Math
In triangle ABC, let D be a point on side BC. Select all the true statements.
If AD is an altitude of triangle ABC, then AC > AD.
If AD is a median of triangle ABC, then BD > CD.
If AD is an angle bisector
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tomtom
Jan 17, 2026
Jan 16, 2026
0
1
1
+404
Math
Bekah has three brass house number digits: 2, 3, 4, 5, and 6. How many distinct numbers can she form using one or more of the digits, if her number must be divisible by 4?
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Stanry
Jan 16, 2026
0
1
1
+4
Ms. Lee has 12 boxes of crayons. Next year, she plans to buy 250% more boxes. How many boxes will she have in all? Responses 15 boxes 15 bo
Ms. Lee has 12 boxes of crayons. Next year, she plans to buy 250% more boxes. How many boxes will she have in all?
Responses
15 boxes
15 boxes
read more ..
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emmaisthebest
Jan 16, 2026
Jan 15, 2026
0
1
2
+1289
Math
To win a game with a fair coin, you must flip n+1 heads in a row, where $n$ is the total number of tails flipped so far. So if your first flip is heads, you win and the game is over; if your first flip is tails but your next two in a row are heads, you
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AnswerscorrectIy
Jan 15, 2026
Jan 14, 2026
+1
21
1
+123
Easy Physics Problem
A train engine and carriages have a total mass of 750 tons
Its brakes fail, and it crashes into the barrier in the terminus with a force of 1,687,500 N.
The barrier stops the train in 15 s.
Calculate the velocity of the train in km/h just
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nerdboy
Jan 14, 2026
+2
21
1
+123
Modulo
The sum of the prime numbers from 1-10, 11-20, 21-30, 31-40, and 41-50 are multiplied together with 997. What is the remainder when this result is divided by 97?
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nerdboy
Jan 14, 2026
Nov 3, 2025
Oct 29, 2025
Oct 26, 2025
Oct 24, 2025
0
22
2
+104
Math
Distinct prime numbers p, q, and r satisfy the equation p(q + r) = 16. Which of the following prime numbers must either q or r be equal to?
2 3 5 7 11
ElectricPavlov
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BlackoutMiIkshake
Oct 24, 2025
0
24
1
+104
Math
The triangle with vertices at (1,0), (0,1), and (k,k) has area 1/2. Find k.
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BlackoutMiIkshake
Oct 24, 2025
-1
22
1
+104
Math
Mrs. Monstrous Millie wants to throw a party for a group of monsters and aliens. The monsters each have 5 heads with 7 ears on each head, and the aliens each have 5 heads with 3 ears on each head. As party favors, Mrs. Millie wants to give each guest a
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BlackoutMiIkshake
Oct 24, 2025
Oct 23, 2025
Oct 22, 2025
0
23
1
+104
Math
Siva starts at vertex A of square ABCD with side length 10. He walks towards vertex C, along the diagonal AC. He then walks towards B, then towards D. What is the length of his path?
Bosco
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BlackoutMiIkshake
Oct 22, 2025
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