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Post New Question
All Questions
+0
230864 Questions
0
1534
1
tan^2(45·-30·/2)
tan^2(45·-30·/2)
off-topic
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Guest
Jul 5, 2017
0
529
1
question about log
logN=1.059090039 N=?
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Guest
Jul 5, 2017
0
1025
1
Can you predict the remainder when 111…1 (100 ones) is divided by 1111111
We have 111...11 a hundred times.
We begin with 1 in our quotient. We have 93 ones remaining. We add six zeros according to the division algorithm to get 1000000 in our quotient. We add another one to get 10000001 in our quotient and we have 86
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Guest
Jul 5, 2017
Jul 4, 2017
0
922
2
Previous test question
X3Y5 - XY4 + X2Y2
divided by XY
hectictar
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Guest
Jul 4, 2017
0
529
1
help
59876219.234918758 x 12387682.897124376
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Guest
Jul 4, 2017
0
977
3
Alloy and nickels
One alloy contains nickel and zinc in ratio 6:1, while another alloy contains nickel and zinc in ratio 20:21. If you mix the two alloys in ratio 23:15, what is the ratio of nickel to zinc in your new alloy?
Please help :D
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Guest
Jul 4, 2017
0
766
1
help
how do i work out the length of the adjacent if i know the hypotenuse and the other one i forgot
hectictar
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Guest
Jul 4, 2017
0
731
1
HOW TO ADD 2 NUMBERS
HOW TO ADD 54 + 15
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Guest
Jul 4, 2017
0
1185
2
+14
Word Problem!! (Geometric Sequence)
A certain school had a fund raising activity. Each board member was requested to sell two (2) tickets on the first day and double the sales each day for 10 days. If Mr. Santos, a board member, met his quota. How many tickets did he sell on the 10th
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Matimatix
Jul 4, 2017
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1876
3
+14
Geometric Sequence
The third term of a Geometric Sequence is 27 and the fifth term is 243. What is the sum of the first 10 terms?
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Matimatix
Jul 4, 2017
0
1070
2
+14
Geometric Sequence
The sum of the first five terms of a Geometric Sequence is 155 and the fifth term is 80. What is the 6th term?
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Matimatix
Jul 4, 2017
0
1098
2
+0
Help this is a math olympiad question (my school's math competition)
what is 12+22+32+.....+n2 ? you need to express it using a simple expression
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ThePuppetMaster
Jul 4, 2017
0
857
2
geometric series
the first term of a geometric series is 1,the nth term is 128 and the sum of the n terms is 256 find the common ratio and the number of terms.
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Guest
Jul 4, 2017
0
904
1
how much grams of gold are there in 18 karats gold in material if it has a mass of 60 gram? hint 18 karats contains 75% gold
how much grams of gold are there in 18 karats gold in material if it has a mass of 60 gram? hint 18 karats contains 75% gold
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Guest
Jul 4, 2017
0
4959
2
(5/2) 2
(5/2)2
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Guest
Jul 4, 2017
+2
810
4
Please put this in 'sticky topics'
I see one guest keeps posting riddles of a youtuber called "mind your decisions". That youtuber has some really nice riddles, and you can just go to his page and take a look at his riddles for yourselves!
off-topic
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Guest
Jul 4, 2017
0
949
5
Calculus Summer Assignment
What is xED(f)*backwards E* f(x)=6 mean?
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Guest
Jul 4, 2017
0
1114
7
The Bank Safe....
A safe has a code lock that unlocks if you input the correct four digits, in any order. The lock has a keypad with the digits 0, 1, 2, ..., 9. For example, suppose the unlock code is 1000. The safe will open for any order you input the digits: 1000, 0100,
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Guest
Jul 4, 2017
Jul 3, 2017
0
1025
3
Whole Numbers
is 0 a whole number?
CPhill
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Guest
Jul 3, 2017
0
510
0
mr ali
how did they get 30 in colum A am so confused
Guest
Jul 3, 2017
0
751
4
Help me
0 = 2x(3/x - 3/2) - 7
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Guest
Jul 3, 2017
0
1007
2
math
What is the solution to the system of equations below?y=-3x-9 and y= 1/3x-39
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Guest
Jul 3, 2017
0
5586
2
Math question?
Andrei has a glass tank. First, he wants to put in some marbles, each of which has a volume of 0.04, point, 04 liters. Then, he
wants to fill the tank with water until it's completely full. If he uses 50 marbles, he will have
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Guest
Jul 3, 2017
0
588
1
Pls explain how it gets to 13!
x*(1/x+2)=14
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Guest
Jul 3, 2017
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