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ddocm
Username
ddocm
Score
69
Membership
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Questions
14
Answers
3
15 Questions
3 Answers
+1
344
0
+69
Dice probability question
Omar has four fair standard six-sided dice. Omar invented a game where he rolls his four dice over and over again until the number 1 does not appear on the top face of any of the dice. Omar wins the game if on that roll the top faces of his dice show at
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ddocm
Aug 18, 2021
0
339
1
+69
sequence question
A sequence is defined by a1 = 1 and an = a 2 n−1 + 1 for all n ≥ 2. Find the units digit of a1000
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ddocm
Aug 18, 2021
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578
2
+69
Graphing circle question
A circle with a radius of 2 units has its center at (0, 0). A circle with a radius of 7 units has its center at (15, 0). A line tangent to both circles intersects the x-axis at (x, 0) to the right of the origin. What is the value of x?
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ddocm
Mar 7, 2021
0
436
1
+69
Algebraic cube question
Six positive integers are written on the faces of a cube. Each vertex is labeled with the product of the three numbers on the faces adjacent to the vertex. If the sum of the numbers on the vertices is equal to 1001, then what is the sum of the numbers
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ddocm
Feb 27, 2021
0
497
3
+69
Good online math courses?
Does anyone here know any good online math courses? I want something that covers topics in-depth and that is around highschool level in terms of difficulty. I want it to video-based and would rather it be live than pre-recorded. I know this isn't what usually
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ddocm
Feb 27, 2021
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#2
+69
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thanks!
ddocm
Mar 7, 2021
#4
+69
+3
Yes this is correct. Thank you.
ddocm
Feb 3, 2021
#2
+69
+1
The answer is wrong. GV * VH = XV * VY isn't true.
ddocm
Feb 3, 2021