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Post New Question
All Questions
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230625 Questions
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475
1
help
The three positive integers 3, 36, and x are such that their arithmetic mean exceeds their geometric mean by 13. Find the value of x.
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Guest
Dec 18, 2019
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322
0
help
Determine the nonzero numbers p, q, r such that p, q, r are the roots of x^3 - px^2 + qx - r = 0.
Guest
Dec 18, 2019
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519
1
help
In geometry, the spiral of Theodorus (also called square root spiral, Einstein spiral or Pythagorean spiral) is a spiral composed of right triangles, placed edge-to-edge. It was named after Theodorus of Cyrene. Which triangle has an area of 1?
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Guest
Dec 18, 2019
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1023
1
+115
Need Help ASAP
Let a, b, c be complex numbers such that a + b + c = ab + ac + bc = abc = 1. What are the values of a, b, c?
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NewMember
Dec 18, 2019
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683
3
endpoints of a diameter of a circle
attempted
https://prnt.sc/qcnkdc
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Guest
Dec 18, 2019
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723
4
someone please help? im stuck and dont understand this.
i just dont understand this, its the last question and i need help...
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Guest
Dec 18, 2019
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510
2
test
-4-(1+7x)= -4x-14
ElectricPavlov
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Guest
Dec 18, 2019
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354
1
am i correct
https://prnt.sc/qclyx9
am i correct ? im not really confident about the negative roots part of my answer
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Guest
Dec 18, 2019
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335
0
help
If x + y + z = 1,
x^2 + y^2 + z^2 = 2,
x^3 + y^3 + z^3 = 3,
find x^5 + y^5 + z^5.
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Guest
Dec 18, 2019
0
714
2
help
In the image above, the green, blue, and orange triangles are all equilateral triangles. How many times is the area the leftmost green triangle of that of the rightmost orange triangle?
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Guest
Dec 18, 2019
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629
2
help
Solve (2 + x)^(-1) = x.
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Guest
Dec 18, 2019
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1025
1
help
A stick is 5 units long. It is broken at two points, chosen at random. What is the probability that all three pieces are longer than 1 unit?
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Guest
Dec 18, 2019
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382
1
how do you find standard deviation?
how do you find standard deviation?
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Guest
Dec 18, 2019
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454
1
Trig Question
Solve cos theta = -0.9057 for, 0degrees <= to theta < 360. How do I solve this and why is the answer not 155 degrees? Thanks in advance.
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Guest
Dec 18, 2019
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721
4
help
The probability of Sanjeet hitting a target is 3/4. How many minimum number of times must he fire so that the probability of hitting the target of at least is more than 0.99?
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Guest
Dec 18, 2019
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2
1036
1
help
A bug of negligible size starts at the origin of the coordinate plane. First, it moves 1 unit right to (1,0). Then it makes a 90 degree turn counterclockwise and travels 1/2 a unit to (1,1/2). It continues in this fashion
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Guest
Dec 18, 2019
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657
1
help
Let m > 1 be a positive integer. Find the remainder when 2^m + 5^(m - 1) + 7^(m - 2) is divided by 3.
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Guest
Dec 18, 2019
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624
9
help
Consider all positive integers between 3000 and 4000 which, when divided by any of the first three primes, leave a remainder of 1. Find the sum of all these integers.
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Guest
Dec 18, 2019
+1
664
1
help
The expression max(a,b) means the larger of a and b. If x > y > z, then x + y + z - max(x,y) - max(x,z) - max(y,z) + max(x,y,z) always equals one of x, y, or z. Determine which one.
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Guest
Dec 18, 2019
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459
1
help
In a circle, two chords of lengths 4 and 11 respectively subtend central angles whose degree-measures are in the ratio 1 to 3 respectively. Determine the length of the radius of the circle.
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Guest
Dec 18, 2019
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664
1
help
Two thousand nine hundred and forty unit squares are assembled together to exactly form an 84 by 35 rectangle. One diagonal of the rectangle is drawn. This diagonal intersects the interiors of how many of these unit squares?
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Guest
Dec 18, 2019
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788
5
help
Farmer Jim has an 8 gallon bucket full with water. He has three empty buckets: 3 gallons, 5 gallons and 8 gallons. How can he get two volumes of water, 4 gallons each, using only the four buckets?
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Guest
Dec 18, 2019
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389
1
help
Jane and John wish to buy a candy. However Jane needs seven more cents to buy the candy, while John needs one more cent. They decide to buy only one candy together, but discover that they do not have enough money. How much does the candy cost?
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Guest
Dec 18, 2019
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453
1
help
Points O and P on the graph of x^2 = 20y - 100 are the centers of circles tangent to both axes. These circles intersect at (0,k). Find k.
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Guest
Dec 18, 2019
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