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Post New Question
All Questions
+0
230906 Questions
0
1483
7
+98
Circles and Angles
Let be a cyclic quadrilateral. Let be the intersection of and , and let be the intersection of and . Prove that the angle bisectors of and are perpendicular.
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Melody
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benjamingu22
Nov 12, 2017
0
1051
2
Two Earth Science Questions-Urgent Help
Hello everyone, I just have two Earth Science questions that I'm stuck on and I need help. If you can help me, I'd appreciate it. Also, I have answers to these questions, I just would like to make sure that I am correct and accurate. I need to get
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off-topic
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Guest
Nov 12, 2017
0
2387
1
How do you solve?
Three points are on the same line if the slope of the line through the first two points is the same as the slope of the line through the second two points. For what value of $c$ are the three points $(2,4)$, $(6,3)$, and $(-5,c)$ on the same line?
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hectictar
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Guest
Nov 12, 2017
0
802
1
Help
For a certain value of $k$, the system \begin{align*} x + y + 3z &= 10, \\ -4x + 2y + 5z &= 7, \\ kx + z &= 3 \end{align*} has no solutions. What is this value of $k$?
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Guest
Nov 12, 2017
0
2227
1
Given that S=7a+b+7c and also S=6a+8b+6c, where 51< S < 149 and S is an integer, find the sum a+b+c.
Given that S=7a+b+7c and also S=6a+8b+6c, where 51< S < 149 and S is an integer, find the sum a+b+c.
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Guest
Nov 12, 2017
0
1
1197
2
+101
If you don't help I'll turn you into Kelp!
How does one verify
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dom6547
Nov 12, 2017
0
764
1
x 16 * x -2 ???
x16 * x-2
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Guest
Nov 12, 2017
0
818
2
+502
AS Maths
2x^3 + 9x^2 -25 by (x+5)
Note:Use 0x
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Rauhan
Nov 12, 2017
0
624
1
A Sequence.....
Please give at least 3 more terms of this sequence and the formula or the method used to generate them:
{1, 2/3, 1/3, 2/15, 2/45, 4/315, ...}. Thank you for help.
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Guest
Nov 12, 2017
0
1973
1
+8
A point (x,y) with integer coordinates is randomly selected such that and . What is the probability that ? Express your answer as
A point (x,y) with integer coordinates is randomly selected such that and . What is the probability that ? Express your answer as a common fraction.
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theavidreader
Nov 12, 2017
0
1336
2
+8
The number n is randomly selected from the set {1,2,...,10}, with each number being equally likely. What is the probability that 2n-4>n?
The number n is randomly selected from the set {1,2,...,10}, with each number being equally likely. What is the probability that 2n-4>n?
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theavidreader
Nov 12, 2017
+1
1026
1
+205
can you crack these?
1. It took a boat 2 hours to reach town A going upstream. The way back was 1 hour and 20 mins. What is the speed of the boat in still water if the speed of the stream is 3 mph?
2. It took a plane 2 hours to go from Dallas to New York
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joebob
Nov 12, 2017
+1
1261
1
+476
How do I figure the standard deviation of 54,55,57,58,58,59,59,61,61,63,66,66,67,67,69,70?
How do I figure the standard deviation of 54,55,57,58,58,59,59,61,61,63,66,66,67,67,69,70?
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AsadRehman
Nov 12, 2017
+1
1144
1
+476
Curious about Siri
Does Siri Work On SAMSUNG
off-topic
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AsadRehman
Nov 12, 2017
0
1095
1
+476
I need help
given that a+b=c, a+c=d, and b=c+d where d is a positive integer what is the greatest value of a
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AsadRehman
Nov 12, 2017
+1
860
0
+476
Points $A$ and $B$ have the same $y$-coordinate of 13, but different $x$-coordinates. What is the sum of the slope and the $y$-intercept of
Points $A$ and $B$ have the same $y$-coordinate of 13, but different $x$-coordinates. What is the sum of the slope and the $y$-intercept of the line containing both points?
AsadRehman
Nov 12, 2017
+1
2395
2
+476
Write a single transformation rule that has the same effect as each composition of transformations. T<6, 7> T<-10, 7>
Write a single transformation rule that has the same effect as each composition of transformations.
T<6, 7> ○ T<-10, 7>
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AsadRehman
Nov 12, 2017
+1
523
1
How do I figure the standard deviation of 54,55,57,58,58,59,59,61,61,63,66,66,67,67,69,70?
How do I figure the standard deviation of 54,55,57,58,58,59,59,61,61,63,66,66,67,67,69,70?
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Guest
Nov 12, 2017
+1
1138
2
using alegra prove that 0.565656... / 0.124242424... is equal in value to 560/123
using alegra prove that 0.565656... / 0.124242424... is equal in value to 560/123
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Guest
Nov 12, 2017
0
2320
1
+912
Which description best defines AB¯¯¯¯¯ ?
Which description best defines AB¯¯¯¯¯ ?
the set of point A and point B and all the points between point A and point B
the set of all points that are the same distance from point A as
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AngelRay
Nov 12, 2017
0
1
3134
1
+912
Drag a reason to each box to complete this proof.
Drag a reason to each box to complete this proof.
If 5x − 4 +13x = 5 , then x = 1/2 .
Statement
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TheXSquaredFactor
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AngelRay
Nov 12, 2017
0
2103
5
+536
144 square feet to square miles.
Use two unit multipliers to convert 144 square feet to square miles. Round any decimal answer to two places.
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ProMagma
Nov 12, 2017
0
1249
4
+536
What is the volume in cubic meters?
What is the volume in cubic meters?
MaxWong
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ProMagma
Nov 12, 2017
+2
1951
3
+9589
Method of Undetermined Coefficients(challenge for you :D)
Solve the second-order ordinary differential equation:
MaxWong
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MaxWong
Nov 12, 2017
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