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1572

tan^2(45·-30·/2)

off-topic

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Guest Jul 5, 2017

610

question about log

logN=1.059090039 N=?

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Guest Jul 5, 2017

1086

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 read more ..

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Guest Jul 5, 2017

Jul 4, 2017

1009

Previous test question

X3Y5 - XY4 + X2Y2
divided by XY

hectictar ●●

Guest Jul 4, 2017

617

help

59876219.234918758 x 12387682.897124376

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Guest Jul 4, 2017

1069

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 read more ..

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Guest Jul 4, 2017

859

help

how do i work out the length of the adjacent if i know the hypotenuse and the other one i forgot

hectictar ●

Guest Jul 4, 2017

829

HOW TO ADD 2 NUMBERS

HOW TO ADD 54 + 15

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Guest Jul 4, 2017

1276

+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 read more ..

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Matimatix Jul 4, 2017

1954

+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

1156

+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

1185

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

946

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

980

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

5000

(5/2) 2

(5/2)2

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Guest Jul 4, 2017

900

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

1038

Calculus Summer Assignment

What is xED(f)*backwards E* f(x)=6 mean?

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Guest Jul 4, 2017

1190

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, read more ..

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Guest Jul 4, 2017

Jul 3, 2017

1113

Whole Numbers

is 0 a whole number?

CPhill ●●●

Guest Jul 3, 2017

591

mr ali

how did they get 30 in colum A am so confused

Guest Jul 3, 2017

854

Help me

0 = 2x(3/x - 3/2) - 7

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Guest Jul 3, 2017

1097

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

5612

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 read more ..

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Guest Jul 3, 2017

680

Pls explain how it gets to 13!

x*(1/x+2)=14

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Guest Jul 3, 2017

All Questions ⁺⁰237697 Questions

tan^2(45·-30·/2)

question about log

Can you predict the remainder when 111…1 (100 ones) is divided by 1111111

Previous test question

help

Alloy and nickels

help

HOW TO ADD 2 NUMBERS

Word Problem!! (Geometric Sequence)

Geometric Sequence

Geometric Sequence

Help this is a math olympiad question (my school's math competition)

geometric series

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

(5/2) 2

Please put this in 'sticky topics'

Calculus Summer Assignment

The Bank Safe....

Whole Numbers

mr ali

Help me

math

Math question?

Pls explain how it gets to 13!

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