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Post New Question
All Questions
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230855 Questions
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293
1
HELP PLEASE DUE TOMORROW!!!
In rectangle WXYZ, A is on side WX such that AX = 4, B is on side YZ such that BY = 18, and C is on side XY such that angle ACB= 90 degrees and CY = 2CX. Find AB.
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Guest
Jun 22, 2020
0
386
1
help
x, y, z are integers such that x^2 + y^2 + z^2 = 18 and xy + xz + yz = 9.
Find |x| + |y| + |z|.
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Guest
Jun 22, 2020
0
460
1
please help
I have a magical machine that can scan a 3D object and determine whether the numerical value (in units) of its surface area is equal to the numerical value (in units) of its volume. After experimenting with different objects in my lab, the only thing that
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Guest
Jun 22, 2020
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518
1
equazion solver
equation solver doesn't work and there is an error message. Is it normal?
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Guest
Jun 22, 2020
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510
2
help
a and b are integers such that a^3 + b^3 = 2015. Find a + b.
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Guest
Jun 22, 2020
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857
3
+223
Surface area problem, please explain.
Let APQRS be a pyramid, where the base PQRS is a square of side length 20. The total surface area of pyramid APQRS (including the base) is 1200. Let W, X, Y, and Z be the midpoints of and respectively. Find the total surface area of frustum PQRSWXYZ (including
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envoy
Jun 22, 2020
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602
1
+223
Find the space diagonal. Please explain.
A rectangular prism has a total surface area of 48. Also, the sum of all the edges of the prism is 40. Find the length of the diagonal joining one corner of the prism to the opposite corner.
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envoy
Jun 22, 2020
0
686
1
+223
Square pyramid volume question.
In a certain regular square pyramid, all of the edges have length 12. Find the volume of the pyramid.
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envoy
Jun 22, 2020
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340
0
plz help for business
Look at the image below and use to answer questions 5a and 5b. 5a. Identify the percentage of people willing to pay more than £20.
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Guest
Jun 22, 2020
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358
1
probability
An integer from 100 through 999, inclusive, is to be chosen at random. What is the probability that the number chosen will have 0 as at least one digit?
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Guest
Jun 22, 2020
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332
0
help
How many perfect squares can you make from the digits 2, 4, 6, and 9? You can use each digit at most once, but you don't have to use every digit.
Guest
Jun 22, 2020
0
502
1
+4
probability
If the probability of A not appearing over a time interval is p, and the probability of B not appearing over the same time interval is q, what is the probability of both not appearing? Is it pq or p+q?
greenink 22/06/20.
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greenink
Jun 22, 2020
0
1872
4
+55
Geometry
Hi everyone! This is a problem from the last class of my geometry course, and I am a bit stuck on it. The week focus is "challenging problems", so I know that it is meant to be hard and I just need a hint to get started, because I don't know
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ConfuzzledKitten
Jun 22, 2020
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491
1
please help
8 male students and 4 female students sit around a round table, at random. What is the probability that all 4 female students are sitting together?
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Guest
Jun 22, 2020
0
620
2
h el p
Three of the elements in the solution set of the simultaneous system
are ordered pairs of integers (x, y). Find these ordered pairs.
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Guest
Jun 22, 2020
0
718
2
+334
fsdfsd
How many integers between 100 and 500 have at least two 3s as digits?
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Rayjplayz
Jun 22, 2020
0
1344
2
HELP ASAP
How many integers between 100 and 500 have at least two 3s as digits?
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Guest
Jun 22, 2020
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856
1
Healllllp
I have twenty balls numbered 1 through 20 in a bin. In how many ways can I select 2 balls, if the order in which I draw them doesn't matter?
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Guest
Jun 22, 2020
0
323
0
need help with counting problem
I drew rectangular grids with one more row than their column. The number of dots in the first four grids are 2, 6, 12, and 20, as shown in the diagram below:
What is the total number of dots used in the first eleven grids?
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Guest
Jun 22, 2020
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494
3
help
How many 5-digit numbers without repetition of digits can be formed using the digits 0, 2, 4, 6, 8?
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Guest
Jun 22, 2020
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349
0
domain
Find the domain of the function
Guest
Jun 22, 2020
0
616
5
primes
Find all positive integers n such that n, n + 2, and n + 4 are all primes.
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Guest
Jun 22, 2020
0
516
2
help
In your dining room, there are P people, C armless chairs, and one table with four legs. There are 10 arms in the room and 18 legs. How many more chairs do you need to get so that everyone can sit down?
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Guest
Jun 22, 2020
0
511
2
help
I was shopping for some toilet paper, I saw an advertisment for double the amount of toilet paper as a single roll. Assuming that the toilet paper is equally densely packed, and that the diameter of the core is the same at 1 unit, and the diameter of the
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Guest
Jun 22, 2020
0
344
1
HELP ALGEBRA!
1. Find the discriminant of the quadratic
2. Find the largest integer such that the equation has no real solutions.
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Guest
Jun 22, 2020
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