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Post New Question
All Questions
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231315 Questions
0
76
1
counting
Joanna has six beads that she wants to assemble into a bracelet. Two of the beads have the same color, and the other four all have the same color. How many different ways can Joanna assemble her bracelet? (Two bracelets are considered identical if one can
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Guest
Mar 24, 2023
0
63
0
Inequality
Prove that if a, b, and c are positive real numbers, then
sqrt(a^2 + ab + b^2) + sqrt(a^2 + ac + c^2) + sqrt(b^2 + bc + c^2) >= sqrt(3) (sqrt(ab) + sqrt(ac) + sqrt(bc))
When does equality occur?
Guest
Mar 24, 2023
0
76
1
Probability
When it rains, every student in Margo's school brings a raincoat, an umbrella, or both. And of the students bring both. The total number of umbrellas brought is equal to twice the number of raincoats.
What percent of the
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Guest
Mar 24, 2023
0
71
0
question
What is the range of the following relation:
(9, -2)(4, 3)( 8, 10)( -4, 8)
Guest
Mar 24, 2023
0
68
1
geometry
In triangle ABC, the angle bisector of angle BAC meets AC at D. If angle BAC = 60, angle ABC = 60, and AD = 24, then find the area of triangle ABC.
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Guest
Mar 24, 2023
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67
0
Algebra
Let S be the set of all real numbers of the form
a1/3 + a2/3^2 + a3/3^3 + ....
where a_i \in {0, 1, 2} for all i.
(a) Is the number 1/7 in the set S?
(b) Is the number 1/4 in the set S?
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Guest
Mar 24, 2023
0
73
0
counting
In how many ways can three points be selected from the grid below so that they form a right isosceles triangle?
Guest
Mar 24, 2023
0
69
0
Algebra
Let r be a root of x^3 - 2x + 5 = x^3 - x^2 + 9. Show that none of r, r^2, or r^3 is irrational.
Guest
Mar 24, 2023
0
74
0
precalc
Plz help with parametric equations
The position of a particle is given by the parametric equations
x = 1 + sin pi*t - cos pi*t
y = 3*sin pi*t + 2*cos pi*t
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Guest
Mar 24, 2023
0
71
0
Geometry
In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area
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Guest
Mar 24, 2023
0
71
0
Algebra
Plz help with this
Select all the correct statements. (For this problem, we assume that an exponential function is of the form ka^x where a > 0)
(A) The following function is exponential: y = 2^x
(B)
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Guest
Mar 24, 2023
0
75
0
geometry
Let B, A, and D be three consecutive vertices of a regular -gon. A regular heptagon is constructed on AB with a vertex C next to A Find angle BCD in degrees.
Guest
Mar 24, 2023
0
69
1
Probability
A box contains 24 tiles. Each tile has certain properties:
Each tile is made of wood or plastic.
Each tile is red, yellow, or blue.
Each tile is a triangle, square, pentagon, or circle.
There is exactly one tile
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Guest
Mar 24, 2023
0
89
4
Value of expression(simplified)
I don't necessarily know what steps to take to solve this problem. I don't want to cube the denominator by hand as it will become very large quickly. My guess is something to do
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Guest
Mar 24, 2023
+1
82
1
Fun with Functions!
So, i searched the internet for some fun function problems, so here they are!
1The graph of function f is shown below in red. For which x value does f(x) = 4?
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Guest
Mar 24, 2023
0
85
1
geometry
In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that one of its vertices is at O, and the opposite vertex lies on face ABC. Let OA = 1, OB = 1, OC = 1. Show that the
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Guest
Mar 24, 2023
0
70
0
At 1pm a bicycle is 9 miles due north of an Ice cream shop and is traveling south (towards the ice cream shop) at 15 mph.
At 1pm a bicycle is 9 miles due north of an Ice cream shop and is traveling south (towards the ice cream shop) at 15 mph.
At the same time, another bike rider is 2 miles east of the ice cream shop and is traveling east (away from the ice cream shop)
at
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Guest
Mar 24, 2023
Mar 23, 2023
0
85
2
Help! Geometry Problem
In the diagram, angle U = 30 degrees , minor arc XY = 170 degrees, and minor arv VW = 110 degrees. Find arc WY, in degrees.
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Guest
Mar 23, 2023
0
71
1
counting
Plz help
A standard six-sided die is rolled 7 times. You are told that among the rolls, there was one 1, two 2's, and three 4's. How many possible sequences of rolls could there have been? (For example, 5, 1, 2, 2,
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Guest
Mar 23, 2023
0
80
1
geometry
Points X, Y, and Z are on the sides QR , PR, and PQ respectively, of right triangle PQR such that PZXY is a square. If PQ=10 and PR=10, then what is the side length of the square?
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Guest
Mar 23, 2023
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