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237801 Questions
Apr 7, 2026
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CPhill i need answer
Let ABCDE be an equilateral pentagon. If the pentagon is concave, and $\angle A = \angle B = 90^{\circ},$ then what is the degree measure of $\angle E$?
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BlackoutMiIkshake
Apr 7, 2026, 11:40 PM
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help Cphill
An equilateral triangle, a regular heptagon, a square, a 20-gon, a regular pentagon, a regular hexagon, and a regular n-gon, all with the same side length also completely surround a point. Find n.
BlackoutMiIkshake
Apr 7, 2026, 11:40 PM
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help help
The function f(x) is defined for 1 \le x \le 5 as follows:
f(x) = 2x + 8 if 1 \le x \le 2
f(x) = 13 - 5x if 2 < x \le 3
f(x) = 20 - 14x if 3 < x \le 4
read more ..
BlackoutMiIkshake
Apr 7, 2026, 11:39 PM
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plz help
Trapezoid ABCD has bases \overline{AB} and \overline{CD}. The extensions of the two legs of the trapezoid intersect at $P$. If $[ABD]=8$ and $[PBC]=8$, then what is $[PAB]$?
BlackoutMiIkshake
Apr 7, 2026, 11:07 PM
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helphelphelp
Trapezoid ABCD has bases \overline{AB} and \overline{CD}. The extensions of the two legs of the trapezoid intersect at $P$. If $[PBC] = 15$ and $CD = 3 \cdot AD,$ what is $[ABCD]$?
BlackoutMiIkshake
Apr 7, 2026, 10:34 PM
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i need help CPhil
There exists a polynomial $f(x)$ and a constant $k$ such that
(x^2 - 2x - 5) f(x) = 2x^4 + 19x^3 + kx^2 - 15x - 1.
What is $k?$
BlackoutMiIkshake
Apr 7, 2026, 9:47:46 PM
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1
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+200
plz help
Suppose the domain of f is (-1,3). Define the function g by
g(x) = f((x + 1)(x - 2)).
What is the domain of g?
BlackoutMiIkshake
Apr 7, 2026, 9:47:33 PM
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help me Cphil
Point P lies in regular hexagon ABCDEF such that [ABP ] = 3, [CDP] = 3, and [EFP] = 3. Compute [BCP].
BlackoutMiIkshake
Apr 7, 2026, 8:49:43 PM
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Cphil help me
Regular hexagon ABCDEF is inscribed in rectangle PQRS. If [AFP] = 20 and [ABC] = 25, then find [ABCDEF].
BlackoutMiIkshake
Apr 7, 2026, 8:08:58 PM
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CPhill help me
In triangle $ABC$, points $D$ and $F$ are on $\overline{AB},$ and $E$ is on $\overline{AC}$ such that $\overline{DE}\parallel \overline{BC}$ and $\overline{EF}\parallel \overline{CD}$. If $CE =3$ and $DF = 3$, then what is $BD$?
BlackoutMiIkshake
Apr 7, 2026, 7:24:40 PM
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+200
help me now
In quadrilateral $BCED$, sides $\overline{BD}$ and $\overline{CE}$ are extended past $B$ and $C$, respectively, to meet at point $A$. If $BD = 8$, $BC = 3$, $CE = 1$, $AC = 19$ and $AB = 13$, then what is $DE$?
BlackoutMiIkshake
Apr 7, 2026, 7:24:20 PM
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help help
In triangle $ABC,$ let the angle bisectors be $\overline{BY}$ and $\overline{CZ}$. Given $AB = 12$, $AY = 12$, and $AC = 12$, find $BZ$.
BlackoutMiIkshake
Apr 7, 2026, 7:24:06 PM
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1
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+200
help me now
In triangle $ABC,$ let the angle bisectors be $\overline{BY}$ and $\overline{CZ}$. Given $AB = 12$, $AY = 12$, and $AC = 12$, find $BC$.
BlackoutMiIkshake
Apr 7, 2026, 6:12:31 PM
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+200
need help
In triangle $ABC,$ $\angle B = 90^\circ.$ Point $X$ is on $\overline{AC}$ such that $\angle BXA = 90^\circ,$ $BC = 15,$ and $CX = 5$. What is $BX$?
BlackoutMiIkshake
Apr 7, 2026, 5:36:33 PM
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help help help help
Alex chooses a number at random from the set {1, 2, 3, 4, 5}. Winnie also chooses a number at random from the same set. (They can choose the same number.) What is the probability that the product of their numbers is at least 4?
read more ..
BlackoutMiIkshake
Apr 7, 2026, 5:36:11 PM
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1
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+200
need help now
In triangle $ABC$, points $D$ and $F$ are on $\overline{AB},$ and $E$ is on $\overline{AC}$ such that $\overline{DE}\parallel \overline{BC}$ and $\overline{EF}\parallel \overline{CD}$. If $CE =3$ and $DF = 3$, then what is $BD$?
BlackoutMiIkshake
Apr 7, 2026, 5:07:10 PM
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1
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+200
Need help
Let ABC be a triangle with \angle B = 90^{\circ}. Suppose that point D lies on segment BC such that angle BAD = \angle CAD, and suppose that point E lies on segment AC such that angle EDA = 60^{\circ}. Given that AD = AC and that CE = 17, find BD.
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read more ..
BlackoutMiIkshake
Apr 7, 2026, 4:53:41 PM
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+200
help geometry
In the diagram below, AB = AC = 1, and arc BC is centered at A with \angle BAC = 60^\circ. Point D is on \overline{AB}, and point E is on arc BC so that BD = DE, and arc BE (centered at D) is tangent to \overline{AC}. Point F is on \overline{DB},
read more ..
BlackoutMiIkshake
Apr 7, 2026, 4:53:25 PM
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1
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+200
help mee
Siva starts at vertex A of square ABCD with side length 10. He walks towards vertex C, along the diagonal AC. He then walks towards B, then towards D. What is the length of his path?
BlackoutMiIkshake
Apr 7, 2026
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1
0
+200
help geo
In triangle ABC, let D be a point on side BC. Select all the true statements.
If AD is an altitude of triangle ABC, then AC > AD.
If AD is a median of triangle ABC, then BD > CD.
If AD is an angle bisector
read more ..
BlackoutMiIkshake
Apr 7, 2026
Apr 6, 2026
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1
0
+200
Help help
In triangle $XYZ,$ circles are drawn centered at $X$, $Y$, and $Z$, so that all pairs of circles are externally tangent. If $XY = 2,$ $XZ = 2,$ and $YZ = 2$, then find the sum of the areas of all three circles.
BlackoutMiIkshake
Apr 6, 2026
0
1
0
+200
Plz help
In equiangular octagaon EFGHIJKL, we know that EF = GH = IJ = KL = 1 and FG = HI = JK = LE = sqrt(2). Find the area of the octagon.
BlackoutMiIkshake
Apr 6, 2026
0
1
0
+200
help me help
Given regular heptagon ABCDEFG, a circle can be drawn that is tangent to DC at C and to EF at F. What is radius of the circle if the side length of the heptagon is 1?
BlackoutMiIkshake
Apr 6, 2026
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