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Post New Question
All Questions
+0
237671 Questions
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536
2
help
A glass is half full of pure alcohol and another glass twice the volume is one third full. Both glasses are then filled to the top with water and mixed together. What is the fraction of alcohol in the resulting mixture?
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Guest
May 19, 2020
0
590
5
+51
Geometry
https://ibb.co/kHHT162
We know a theorem about EB,BC,CF?
Thank you
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DimitrisThymaras
May 19, 2020
0
734
3
AoPS alcumus
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Guest
May 19, 2020
0
495
1
geometry
What is the total area in blue knowing that the area of the large triangle is 1?
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Guest
May 19, 2020
0
1105
1
make t the subject of the formula u=7t+30
u=7t+30
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Guest
May 19, 2020
0
501
1
geometry
In triangle ABC, AB = 6, BC = 4, and AC = 5. The angle bisector of angle B meets AC at P. Find CP.
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Guest
May 19, 2020
0
699
2
+614
circles
1. consider the circle with center (0,0) that passes through the point (-4,2)
find the radius of the circle
2.considere the circle with equation (x-1)^2+(y+7)^2=29
what is the center of the circle?
read more ..
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xxJenny1213xx
May 19, 2020
0
556
2
please help
This is an old coin in ancient China. There is a square hole in the middle and the length of it is 1 unit ( BC = 1). And AB is 2 unit long. Q: what is the area of the coin?
read more ..
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Guest
May 19, 2020
+1
723
1
+505
Two Questions
1. A reflection maps A to B and B to C. If AB=12, what is AC. I tried this problem before and it isn't 24 FYI.
2. A dilation with scale factor -3 maps X to X' and Y to Y'. Given X'Y' = 2, find XY.
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MobiusLoops
May 19, 2020
0
1274
1
+9
Can Someone please help
Graphite is made up of layers of graphene. Each layer of graphene is about 200 picometers, or 200 * 10^-12 meters, thick.
How many layers of graphene are there in a 1.6-millimeter-thick piece of graphite? Express
read more ..
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thatSaiyan
May 19, 2020
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433
0
Help, please.
What is the volume of the oblique cone in the diagram?
read more ..
Guest
May 19, 2020
0
694
1
The area of a circle is 55.95cm2. Find the length of the radius rounded to 2 DP.
The area of a circle is 55.95cm2.
Find the length of the radius rounded to 2 DP.
off-topic
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Guest
May 19, 2020
0
410
1
HALP!?
Find constants A, B, C, and D such that Enter the order quadruple
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Guest
May 19, 2020
0
570
1
help!!!!!
Let v1 = <5, -1> and v2 = <-4, 2>.
Compute v1 + v2, v1 – v2, and v2 – v1.
v1 + v2 =
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Guest
May 19, 2020
0
533
1
pls help
1.Calculate the unit vector for v = <3, 4>
2.Find a vector with length 10 in the same direction of v.
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Guest
May 19, 2020
0
442
0
PLEASE HELPPP!
Charles plots the point with the polar coordinates (−5,−3π/4). How does he plot this point?
Charles first determines which line the angle of rotation places the point on. This line tells Charles that the point must lie in _____ a
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Guest
May 19, 2020
0
595
2
please help
Simplify (1 - 1/4)(1 - 1/9)(1 - 1/16) ... (1 - 1/10000).
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Guest
May 19, 2020
0
441
1
algebra
If x^5 + 2x^3 + ax^2 + b is divisible by x^3 + 1, then find a and b.
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Guest
May 19, 2020
+1
845
3
trig question
Compute
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Guest
May 19, 2020
0
438
1
help
Find the sum 1 + 2 + 3 + ... + 100. Give a complate explanation.
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Guest
May 19, 2020
0
448
2
probability
Three fair dice are rolled. Find the probability that the sum of the rolls is 5.
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Guest
May 19, 2020
0
535
1
trig
Compute cos(pi/12) + sin(pi/12).
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Guest
May 19, 2020
0
405
0
help
Solve the inequality (x + 3)/(x + 1) >= x.
Guest
May 19, 2020
0
701
1
Distribution Problem Help
Hi there! I was working on my homework when I came across two particularly difficult problems. Help would be appreciated!
In how many ways can I distribute 6 identical gummy bears and 6 identical chocolates to 4 students, if each
read more ..
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Guest
May 19, 2020
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