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Post New Question
All Questions
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236027 Questions
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52
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+1768
Frustum
Let $APQRS$ be a pyramid, where the base $PQRS$ is a square. The total surface area of pyramid $APQRS$ (including the base) is $800$. Let $W$, $X$, $Y$, and $Z$ be the midpoints of $\overline{AP}$, $\overline{AQ}$, $\overline{AR}$, and $\overline{AS}$,
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bader
Feb 4, 2024
0
29
1
+1768
Pyramids
Let $ABCD$ be a regular tetrahedron. Let $E$, $F$, $G,$ $H$ be the centers of faces $BCD$, $ACD$, $ABD$, $ABC$, respectively. The volume of pyramid $DEFG$ is $18.$ Find the volume of pyramid $EFGH$
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bader
Feb 4, 2024
0
38
0
+1768
Solid geo
Donatello starts with a marble cube. He then slices a pyramid off each corner, so that in the resulting polyhedron, all the edges have the same side length. If the side length of the original cube is $6$, then find the volume of the resulting
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bader
Feb 4, 2024
0
23
1
+0
Complex Number Problem
The polynomial P(x) is a monic, quartic polynomial with real coefficients, and two of its roots are
and where . When the four roots of P(x) are plotted in the complex plane, they form a quadrilateral whose area is equal
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MathIAExploration
Feb 4, 2024
0
11
2
+101
Geometry problem
If x is an acute angle such that tan x + sec x = 2, find cos x.
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Vxritate
Feb 4, 2024
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35
1
+101
Some geometry problem
What's sin ABC if AB=BC=25 and AC=30
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Vxritate
Feb 4, 2024
Feb 2, 2024
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23
9
+0
3D Geometry
Plz Help!
1.
2.
<#> 3.<#>
<#>
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Akhaim1
Feb 2, 2024
0
34
5
+101
if theta is an acute angle and cos(theta)=7/25, what's sin(theta)?
if theta is an acute angle and cos(theta)=7/25, what's sin(theta)?
Imcool
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Vxritate
Feb 2, 2024
Feb 1, 2024
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47
1
+0
Subset question
how many non-empty subsets of {1,2,3,4,5} contain an element whose value is the number of elements in the subset?
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ruiruima
Feb 1, 2024
0
26
3
+0
Absolute inequality question
|x - 7| + |x - 2| > 4
Imcool
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wmath
Feb 1, 2024
+1
23
10
+77
CPHILL PLEASE HELP
1. Fill in the blanks to make a quadratic whose roots are 5 and -3.
2. Let and be the roots of the quadratic Find the quadratic whose roots are and .
3. Let and be
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NotLatePY
Feb 1, 2024
Jan 31, 2024
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27
1
+400
Geometry
In trapezoid $PQRS,$ $\overline{PQ} \parallel \overline{RS}$. Let $X$ be the intersection of diagonals $\overline{PR}$ and $\overline{QS}$. The area of triangle $PQX$ is $4,$ and the area of triangle $PSR$ is $8.$ Find the area of trapezoid PQRS.
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omgitsrne
Jan 31, 2024
0
3
1
+400
Parallelogram
In parallelogram $EFGH,$ let $M$ be the point on $\overline{EF}$ such that $FM:ME = 3:5,$ and let $N$ be the point on $\overline{EH}$ such that $HN:NE = 2:5.$ Line segments $\overline{FH}$ and GM intersect at P, and line segments FH and GN intersect
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omgitsrne
Jan 31, 2024
0
6
1
+400
Trapezoid
The area of a trapezoid is $80$. The length of one base is $4$ units greater than the other base, and the height of the trapezoid is $12$. Find the perimeter of the trapezoid.
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omgitsrne
Jan 31, 2024
0
4
1
+400
Trapezoid
In trapezoid $ABCD,$ $\overline{AB} \parallel \overline{CD}$. Find the area of the trapezoid.
read more ..
hi1234
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omgitsrne
Jan 31, 2024
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23
3
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3D Geometry
1.
2.
There was another person who asked the first problem
read more ..
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Akhaim1
Jan 31, 2024
+1
34
2
+0
I can’t see melody on the scoreboard
I can't see melody on the scoreboard.
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SoHardToGetANameLol
Jan 31, 2024
-1
31
1
+1521
Algebra
Let u and v be the solutions to 3x^2 + 5x + 7 = 2x^2 + 5x - 19. Find \frac{u}{v} + \frac{v}{u}.
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blackpanther
Jan 31, 2024
-1
28
2
+1521
Quadratic Roots
Let a and b be the solutions to 5x^2 - 11x + 4 = 4x^2 + 11x + 13. Find \frac{1}{a} + \frac{1}{b}.
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blackpanther
Jan 31, 2024
0
5
1
+1521
Expand
Expand (a + 2)(3a^2 - 7a + 12)(a^2 + 2).
Imcool
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blackpanther
Jan 31, 2024
-1
28
1
+1521
Quadratic
Fill in the blanks to make a quadratic whose roots are $5$ and $-5.$
x^2 + ___ x + ___
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blackpanther
Jan 31, 2024
-1
48
1
+94
Circuits Creation
How do i make not, nand, and, or circuits using only the same fundamental pieces. I can only use p and n type transistors as shown, nothing else allowed.
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RandomUser
Jan 31, 2024
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