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mathemagiacian
Questions (12)
Find the sum of all positive integers less than 1000 ending in 3 or 7.
1 answer
523 views
The 23rd term in a certain geometric sequence is 16 and the 28th term in the sequence is 24. What is the 43rd term?
1 answer
1,193 views
Starting from the point (0,0), a grasshopper makes a series of leaps on the coordinate plane. The grasshopper's first leap takes
1 answer
1,227 views
Starting from the point (0,0), a grasshopper makes a series of leaps on the coordinate plane. The grasshopper's first leap takes
3 answers
1,828 views
Suppose 81^x = 64. What is 27^{x+1}?
Give me a clear explanation with the answer. Thanks! :)
1 answer
1,438 views
A four by four grid of unit squares contains squares of various sizes (1 by 1 through 4 by 4), each of which are formed entirely
11 answers
7,511 views
Let S be a subset of {1, 2, 3,... 100}, containing 50 elements. How many such sets have the property that every two numbers in S
1 answer
580 views
In a chess variant, a "lord" can move one space at a time, either upward, or to the right, or diagonally upward and to the
1 answer
634 views
ABCD is a parallelogram where AO and BO bisect angles A and angle B respectively. What is the measure of ∠AOB?
What's the
2 answers
541 views
An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic
1 answer
3,243 views
An equilateral triangle of side 14 centimeters is revolved about an altitude to form a cone. What is the number of cubic
1 answer
1,018 views
Four cubes of volumes 1cm^3, 8cm^3, 27cm^3, and 125cm^3 are glued together at their faces. What is the number of square
10 answers
7,746 views
Answers (1)
That is not right.
