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All Questions
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151537 Questions
0
239
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+1206
Help!
In the diagram, each of the three identical circles touch the other two. The circumference of each circle is 36. What is the perimeter of the shaded region?
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Lightning
Jan 13, 2019
0
159
4
+1206
Help!
Circle Gamma is the incircle of triangle ABC and is also the circumcircle of triangle XYZ. The point X is on BC, the point Y is on AB, and the point Z is on AC. If angle A=40 degrees, angle B=60 degrees, and angle C=80 degrees,
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Lightning
Jan 13, 2019
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112
1
Probability Question
If you flip a fair coin 7 times, what is the probability that you will get exactly 2 tails?
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Guest
Jan 13, 2019
0
112
2
help
There are 5 girls and 5 boys in a chess club. The club holds a round-robin tournament in which every player plays against every other player exactly once.
If Anita is one of the club members, what fraction of all games at the tournament does
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Guest
Jan 13, 2019
0
181
7
HELP! Sequence Problem!
I have found the answer (41) to this problem by virtue of using logarithms, however I’m in need of a solution/proof using telescoping/sequences ! I would really appreciate it, and I need the solution quickly. This is the problem
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Guest
Jan 13, 2019
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119
2
bgf
I need help with this, how do you find equations of lines in graphs
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Guest
Jan 13, 2019
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131
1
help
The difference when the product of 4 and a number is subtracted from 16 is greater than 10. How many positive integers satisfy the given conditions?
ElectricPavlov
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Guest
Jan 13, 2019
+2
184
3
+533
new question
In rectangle ABCD, points E and F lie on segments AB and CD, respectively, such that AE=AB/3 and CF=CD/2. Segment BD intersects segment EF at P. What fraction of the area of rectangle ABCD lies in triangle EBP? Express
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asdf335
Jan 13, 2019
+1
113
10
help plz
There are 5 girls and 5 boys in a chess club. The club holds a round-robin tournament in which every player plays against every other player exactly once.
What fraction of the games are boy-versus-boy? Enter your answer as a fraction in simplified
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Guest
Jan 13, 2019
0
139
3
+143
Mathcounts Question :D
Several months ago, Deven bought two plants. The two plants had the same height at the time when they were purchased. Ever since then, Plant A grew 10 centimeters every month. Plant B grew 1 centimeter in the first month after its purchase, 2
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noobieatmath
Jan 13, 2019
0
135
3
please help!
What is the sum of all numbers $a$ for which the graph of $y=x^2+a$ and the graph of $y=ax$ intersect one time?
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Guest
Jan 13, 2019
0
117
2
help plz
There are 5vgirls and 5 boys in a chess club. The club holds a round-robin tournament in which every player plays against every other player exactly once.
In how many games does a girl play against another girl?
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Guest
Jan 13, 2019
0
156
3
2x=34
2x=34
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Guest
Jan 13, 2019
0
173
3
Help please! Easy Problem!
Roberto has four pairs of trousers, seven shirts, and three jackets. How many different outfits can he put together if an outfit consists of a pair of trousers, a shirt, and a jacket?
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Guest
Jan 13, 2019
0
313
3
+7685
Please help :(
Prove that
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MaxWong
Jan 13, 2019
0
168
1
solve this
111/[{33/(-22/-2).-5^2+(-4)}]
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Guest
Jan 13, 2019
0
177
2
I need help
In acute triangle ABC, angle A = 68 degrees. Let O be the circumcenter of triangle ABC. Find angle OBC, in degrees.
Here is the picture:
https://latex.artofproblemsolving.com/3/e/0/3e07dd4eaa3f9147c076ab5928772e5f163bf260.png
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Omi67
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Guest
Jan 13, 2019
0
161
2
+30
BTS
Suppose the ratio of Lev's age to Mina's age is 1 : 2 and the ratio of Mina's age to Naomi's age is 3 : 4. If the sum of all three ages is between 30 and 50, then how old is Mina?
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ColtPatterson
Jan 13, 2019
0
165
1
help
The solution of is for some positive integers and a
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Guest
Jan 13, 2019
0
118
1
Please help quickly!
Each inch on a map of Roswell, New Mexico represents 0.51 mile. If two hills in Roswell are 7 inches apart on the map, then how many miles apart are they in real life? Enter your answer as a decimal, without units.
ElectricPavlov
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Guest
Jan 13, 2019
+1
173
2
+36
Need Help Quickly Please
A pyramid is formed on a 6x8 rectangular base. The four edges joining the apex to the corners of the rectangular base each have length 13. What is the volume of the pyramid?
ElectricPavlov
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Starz
Jan 13, 2019
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