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A 4 digit combination lock |
2019-02-02 |
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From Brijanshu:
I have a lock that contain only four no. 6,7,8 & 9 . How many possible password of four digit containing these Number.
Answered by Penny Nom. |
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A fraction of a cent |
2019-02-01 |
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From michael:
$ 300 divided by 1,000,000 is 00.0003 ... so, is that three hundredths of one ($ 00.0003) cent or what ... thanks
Answered by Penny Nom. |
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An arithmetic sequence |
2019-01-31 |
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From sara:
if the 6th term of an arithmetic sequence is 8 and the 11th term is -2, what is the first term?
Answered by Penny Nom. |
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One quarter of a quarter cake |
2019-01-30 |
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From Tre:
1/4 of a birthday cake was left over from a party. The next day, it is shared among 4 people. How big a piece of the original cake did each person get?
Answered by Penny Nom. |
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Macy's coin collection |
2019-01-30 |
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From Sariah:
Macy's coin collection has 2 pennies for every nickel. If she has 60 coins that are pennies or nickels, how many nickels does she have?
Answered by Penny Nom. |
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An equilateral triangle inscribed in a circle |
2019-01-29 |
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From Penny:
What is the length of each side of the largest equilateral triangle that fits inside a 3 inch diameter circle?
Answered by Penny Nom. |
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y=lnx+(1+ln2)/2 and y=x^2 |
2019-01-28 |
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From Mike:
Prove that y=lnx+(1+ln2)/2 and y=x^2 touch each other.
The course is about logarithm and root functions... how should I solve this problem?
Answered by Penny Nom. |
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A scale factor |
2019-01-27 |
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From Hannah:
What is the scale factor of 36 meters and 1.5 centimeters?
Answered by Penny Nom. |
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The sum of three consecutive even integers |
2019-01-27 |
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From Pauleen:
Translate this into algebraic expression
The sum of three consecutive even integers, if x is the first even integer
Answered by Penny Nom. |
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The supplement of a complement |
2019-01-25 |
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From Andrei:
The value of the supplement of the complement of 8° is ?°.
Answered by Penny Nom. |
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What angle s its own supplement? |
2019-01-25 |
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From Ciara:
What is the angle of it's own supplement?
Answered by Penny Nom. |
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A median of a triangle |
2019-01-24 |
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From Anna:
For triangle J(1,4) K(-3,-1) L(3,4), find an equation for the median from vertex J
Answered by Penny Nom. |
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(2018^2019)-(2019^2018) |
2019-01-23 |
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From Nazrul:
Find the remainder when (2018^2019)-(2019^2018) is divided by 4? Please show me the process.
Answered by Harley Weston. |
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Numbering pages |
2019-01-20 |
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From chungus:
It takes 852 digits to number the pages of a book consecutively. How many pages are there?
Answered by Penny Nom. |
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A triangle made from 12 matchsticks |
2019-01-20 |
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From Palesa:
How many different types of triangles can be made with a perimeter of 12 matches?
Answered by Penny Nom. |
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