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Post New Question
All Questions
+0
232716 Questions
+1
654
3
HELP!!
Find all complex numbers $z$ such that $z^4 = -4.$
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Guest
Jun 12, 2020
+11
604
3
+678
Factorials question
Given that where and are positive integers and is as large as possible, find .
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amazingxin777
Jun 12, 2020
0
390
0
help
A rhombus has sides of length 1, and an angle of 60 degrees. What is the radius of its inscribed circle?
Guest
Jun 12, 2020
+3
414
1
+6
HELPMEEEEE
A bag contains five white balls and four black balls. Your goal is to draw two black balls.
You draw two balls at random. Once you have drawn two balls, you put back any white balls, and redraw so that you again have two drawn balls. What is the
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Pro12345
Jun 12, 2020
0
471
2
hi CPhill
hi CPhill
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Guest
Jun 12, 2020
0
679
3
help
Simplify
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Guest
Jun 12, 2020
-1
673
1
+288
Help!
https://web2.0calc.com/questions/floor-function-question_1
I think (a) is ,
(b) is
and (c) is but I'm not sure.
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madyl
Jun 12, 2020
0
363
0
help
Find the number of solutions to cos(x) + cos(2x) + cos(5x) = 0 for 0 <= x <= pi.
Guest
Jun 12, 2020
0
508
2
Please Help me!
Find the value of n if the coefficients of x^3 and x^4 are equal in the expansion of (2x+1)^n
Any help or hints are greatly appreciated <3.
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Guest
Jun 12, 2020
0
594
2
help
Anne and Brenda play a game which begins with a pile of n toothpicks. They alternate turns with Anne going first. On each player’s turn, she must remove 1, 3 or 4 toothpicks from the pile. The player who removes the last toothpick wins the game. For which
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Guest
Jun 12, 2020
0
913
3
PLZ HELP ASAPP
The longer leg of a right triangle is $1$ foot shorter than twice the length of the shorter leg. The area of the triangle is $60$ square feet. What is the length of the hypotenuse, in feet?
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Guest
Jun 12, 2020
-1
637
8
Kurwa
yes?
off-topic
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Guest
Jun 12, 2020
+1
2130
1
+223
Tangent question with inscribed angles. Please explain.
Lines $XTQ$ and $XUR$ are tangent to a circle, as shown below.
If and then find in degrees.
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envoy
Jun 12, 2020
0
515
1
help
The figure shows a square ABCD of side 6. It contains arcs BD and AC drawn with centers at A and D, respectively. If x is the radius of the circle tangent to AB and arcs AC and BD. What is
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Guest
Jun 12, 2020
0
485
1
geometry
AB is the diameter of the semicircle. C is a point on the circumference.O is the center if the semicircle.
If the radius of the semicircle is 5, ∠COA=60∘. Find the sum of the area of the region R and S. note region
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Guest
Jun 12, 2020
0
459
2
help please
Find the number of ordered triples of integers (a,b,c) such that abc = 12.
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Guest
Jun 12, 2020
0
459
2
help
The positive integer 10 has the property that it is the product of all its proper divisors: 10 = 1*2*5. Find all numbers between 2 and 30 that have the same property.
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Guest
Jun 12, 2020
+1
1346
3
+51
Hard Probability Help pls
Five journalists, two baristas, and a sailor are to be seated around a circular table. How many different arrangements are possible if the journalists must all sit together (in five consecutive seats) and the baristas must sit next to each other? (Two seatings
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trumpstinks
Jun 12, 2020
0
459
1
help
If p, q, r are positive integers such that , then find q.
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Guest
Jun 12, 2020
-2
767
3
+7
I need help on this math question
on this one, please
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instabaddie.xo
Jun 12, 2020
0
496
1
help
The Crescent Moon below is formed by two circles, both of which are tangent to each other. The point E is the center of the larger circle. If BH = 9, and AF = GC = 5AF=GC=5, what is the area of the shaded region?
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Guest
Jun 12, 2020
0
362
2
Number Theory
Can you prove that there exists 1,000,000 positive consecutive integers that are all composite numbers on the numberline, and what are they, or how do they begin and end? Thank you for help
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Guest
Jun 12, 2020
0
532
4
+42
Probability confusion
For the 1st question, I'm confused about where I place the probability values on the two-way table and Venn diagram. for the 2nd question b and c, I'm confused by the wording of the question.
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matthewicee
Jun 12, 2020
0
344
0
help
Solve for x in terms of b.
Guest
Jun 12, 2020
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