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Post New Question
All Questions
+0
237360 Questions
0
23
1
+1000
Decimals
Express 0.\overline{2123} as a base 10 fraction in reduced form.
NotThatSmart
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Hi6942O
Jun 14, 2024
0
27
1
+750
Number Theory
Compute A710_{16} + 51_{16} + B8AE_{16} in base 16.
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siIviajendeukie
Jun 14, 2024
0
29
1
+750
Number Theory
Compute 221_3 + 122_3 + 202_3 + 110_3 in base 3.
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siIviajendeukie
Jun 14, 2024
0
45
0
+1786
Base arithmetic
Compute 25_6 + 54_6 + 512_6 + 401_6 in base 6.
blackpanther
Jun 14, 2024
0
42
0
+1786
Base arithmetic
Compute 35A8_{11} * 2751_{11} * A04_{11}. Give your answer as a base 11 integer.
blackpanther
Jun 14, 2024
0
42
0
+1786
Base arithmetic
Compute 11_2 + 110_2 + 1111_2 + 11111_2 + 1101_2 + 10100_2. Give your answer as a base 2 integer.
blackpanther
Jun 14, 2024
0
40
1
+1786
Base arithmetic
Compute 2A31_{12} * B75_{12} * 88_{12}. Give your answer as a base 12 integer.
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blackpanther
Jun 14, 2024
0
20
1
+1786
Base arithmetic
Compute 357_8 * 223_8 * 11_8. Give your answer as a base 8 integer.
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blackpanther
Jun 14, 2024
0
37
1
+1786
Base arithmetic
Find the smallest positive integer B so that when we express the decimal number 99 as a base B number, we still get a 2-digit number.
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blackpanther
Jun 14, 2024
-1
16
1
+1855
Counting
In the Olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are 19 skaters, including 2 Americans and 5 Canadians, in how many ways can the medals be awarded to three of the 19 skaters
read more ..
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ABJeIIy
Jun 14, 2024
-1
43
1
+1855
Expected value
Suppose we have a bag with 10 slips of paper in it. Eight slips have a 3 on them and the other two have an 8 on them.
a) What is the expected value of the number shown when we draw a single slip of paper?
b) What is
read more ..
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ABJeIIy
Jun 14, 2024
0
41
1
+1518
Geometry
For what value of $c$ will the circle with equation $x^2 - 10x + y^2 + 10y + c = 0$ have a radius of length 1?
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learnmgcat
Jun 14, 2024
0
44
1
+1518
Geometry
What is the area of the region defined by the equation $x^2+y^2 - 7 = 4y-14x+2x-6y+3$?
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learnmgcat
Jun 14, 2024
0
24
1
+1518
Number Theory
The product of two positive integers minus their sum is 39. The integers are relatively prime, and each is less than 2. What is the sum of the two integers?
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learnmgcat
Jun 14, 2024
0
22
1
+1518
Number Theory
What is the greatest prime factor of the sum of the arithmetic sequence 1 + 2 + 3?
Bosco
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learnmgcat
Jun 14, 2024
0
36
0
+1786
Geometry
The tangent to the circumcircle of triangle $WXY$ at $X$ is drawn, and the line through $W$ that is parallel to this tangent intersects $\overline{XY}$ at $Z.$ If $XY = 15$ and $WY = 10,$ find $WX.$
blackpanther
Jun 14, 2024
0
38
1
+1786
Geometry
Let $IJKLMN$ be a hexagon with side lengths $IJ = LM = 3,$ $JK = MN = 3,$ and $KL = NI = 3$. Also, all the interior angles of the hexagon are equal. Find the area of hexagon $IJKLMN$.
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blackpanther
Jun 14, 2024
Jun 13, 2024
0
43
2
+1786
help with geometry
The interior angles of a polygon form an arithmetic sequence. The difference between the largest angle and smallest angle is $56^\circ$. If the polygon has $3$ sides, then find the smallest angle, in degrees.
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blackpanther
Jun 13, 2024
+1
19
1
+282
ASAP!
Fill in the blanks with numbers to make a true equation.
3x^2 + 12x - 4 - 2x^2 + 6x + 7 = ___ (x + ___ )^2 + ___
NotThatSmart
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BRAINBOLT
Jun 13, 2024
+1
33
1
+282
Question
Pearl writes down seven consecutive integers, and adds them up. The sum of the integers is equal to 28/5 times the largest of the seven integers. What is the smallest integer that Pearl wrote down?
NotThatSmart
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BRAINBOLT
Jun 13, 2024
0
47
0
+1518
Geometry
In parallelogram EFGH, let M be the point on \overline{EF} such that FM:ME = 1:1, and let N be the point on \overline{EH} such that HN:NE = 1:1. Line segments \overline{FH} and \overline{GM} intersect at P, and line segments \overline{FH} and GN intersect
read more ..
learnmgcat
Jun 13, 2024
0
36
2
+2729
Geometry
In square ABCD, P is on BC such that BP = 4 and PC = 1, and Q is on line CD such that DQ = 2 and QC = 3. Find sin angle PAQ.
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LiIIiam0216
Jun 13, 2024
-1
35
1
+2729
Geometry
In quadrilateral $BCED$, sides $\overline{BD}$ and $\overline{CE}$ are extended past $B$ and $C$, respectively, to meet at point $A$. If $BD = 8$, $BC = 3$, $CE = 1$, $AC = 19$ and $AB = 13$, then what is $DE$?
●
LiIIiam0216
Jun 13, 2024
0
41
0
+2729
Geometry
In triangle $ABC$, points $D$ and $F$ are on $\overline{AB},$ and $E$ is on $\overline{AC}$ such that $\overline{DE}\parallel \overline{BC}$ and $\overline{EF}\parallel \overline{CD}$. If $CE =3$ and $DF = 3$, then what is $BD$?
LiIIiam0216
Jun 13, 2024
0
35
1
+2729
Geometry
In triangle $PQR,$ $M$ is the midpoint of $\overline{QR}.$ Find $PM.$
PQ = 5, PR = 8, QR = 11
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LiIIiam0216
Jun 13, 2024
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