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Post New Question
All Questions
+0
234789 Questions
0
305
1
Roots of unity question
What is the smallest positive integer such that all the roots of are roots of unity?
Thanks a lot! :)
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Guest
Jan 17, 2021
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297
1
help please! :)
Let be a complex number such that and . Compute
Thanks!
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Guest
Jan 17, 2021
0
427
4
lines
Let P and Q be constants. The graphs of the lines x - 5y = 7 and 15x + Py = Q are perpendicular and intersect at the point (8,3) Enter the ordered pair (P,Q).
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Guest
Jan 17, 2021
0
359
1
greatest product obtainable
What is the greatest product obtainable from two integers whose sum is 24?
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Guest
Jan 17, 2021
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349
1
Please help, thank you!
Assume that each of 2021 people knows exactly one joke and all 2021 jokes are different. These people correspond with each other by email. Every time person A writes person B, A tells every joke he knows. What is the minimum number of emails between pairs
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Guest
Jan 17, 2021
0
459
2
percent
The price of an item has been lowered two times, each time by \(p\)%.
Find \(p\), if the final price of the item is \(19\)% lower than the starting price.
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Guest
Jan 17, 2021
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501
1
Help me
If then what is
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Guest
Jan 17, 2021
0
360
1
help
The real numbers x,y,z satisfy 0<=x<=y<=z<=4. If their squares form an arithmetic progression with common difference 2, determine the minimum possible value of
|x-y|+|y-z|.
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Guest
Jan 17, 2021
0
518
1
+68
helpppp asap tysm
Ms. Q gave Grogg the following problem: "License plates in Aopslandia consist of six upper-case letters. For example, two possible Aopslandian license plates are $ABCDEF$ and $AAAOPS.$ No two license plates are the same. How many possible Aopslandian license
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piano123
Jan 17, 2021
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447
1
find xy
Given that \(2^{x} = 9\) and \(27^{y} = 2\) find the value of \(xy\).
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Guest
Jan 17, 2021
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470
1
hexagon
ABCDEF is a regular hexagon. Find the ratio of blue area to the yellow area.
AvenJohn
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Guest
Jan 17, 2021
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493
3
Please help I don’t know where to start
When is divided by the remainder is. What is ?
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Guest
Jan 17, 2021
0
344
2
algebra
When you dry mushrooms,they lose 72% of their wieght. What weight of fresh mushrooms do you need in order to get 122 pounds of dried mushrooms?
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Guest
Jan 17, 2021
0
582
2
The tail of a 1-mile long train exits a tunnel exactly 3 minutes after the front of the train entered the tunnel. If the train is moving 60
The tail of a 1-mile long train exits a tunnel exactly 3 minutes after the front of the train entered the tunnel. If the train is moving 60 miles per hour, how long is the tunnel?
Why is this wrong???
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Guest
Jan 17, 2021
0
311
2
algebra
The real numbers x,y,z satisfy 0<=x<=y<=z<=y . If their squares form an arithmetic progression with common difference 2, determine the minimum possible value of
|x-y|+|y-z|.
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Guest
Jan 17, 2021
0
771
1
+49
Help is appreciated!
ABCDEF is a concave hexagon with exactly one interior angle greater than 180 degrees. (The diagram below is not drawn to scale.) Noah measured the marked angles, getting 80,85,95,105,120,125. What interior angle measure of the hexagon, in
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amphat100
Jan 17, 2021
0
371
1
sequence
the sequence 12,15, 18, 21, 51, 81,... consists of all positive multiples of 3 that contain at least one digit that is a 1. what is the 80th term of this sequence?
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Guest
Jan 17, 2021
+1
3253
3
don't know how to do it.
A curve C has equation 𝑦=𝑥^3 −𝑥^2 −𝑥+2
The point P has x-coordinate 2
a) Find dy/dx in terms of x.
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Guest
Jan 17, 2021
0
537
2
5x10^-4 X 3.5 X 120 = ?
5x10^-4 X 3.5 X 120 = ?
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Guest
Jan 17, 2021
-1
604
5
+1443
Please HELP! URGENT! Answering this type of problem was not taught in class!
Let and . Find the correct expression for evaluating .
a)
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SmartMathMan
Jan 17, 2021
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450
1
sequence
The fifth term of an arithmetic sequence is 18, and the sum of the first 32 terms is 1448. Find the ninth term.
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Guest
Jan 17, 2021
0
506
2
arithmetic mean
The arithmetic mean of 23, 16, 30, 33 and two other numbers that differ by 2 is 27. If the smallest of these 6 numbers is discarded, find the arithmetic mean of the remaining 5 numbers.
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Guest
Jan 17, 2021
0
413
1
counting
How many positive integers less than 2020 aren’t divisible by 2, 3, 5, or 7?
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Guest
Jan 17, 2021
0
465
1
help with algebra
Let a and b be the solutions to 5x^2 + 11x + 14 = 0. Find 1/a + 1/b
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Guest
Jan 17, 2021
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497
1
sum of all positive integers n
Find the sum of all positive integers $n$ such that 1.2n-4.4<55.2.
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Guest
Jan 17, 2021
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