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Questions
257
Réponses
99
260 Questions
128 Answers
0
135
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+834
help plz
Find the vertex of the graph of the equation $x - y^2 + 8y = 13 + 2y + y^2 - 7y - 14$.
maximum
21 nov. 2023
0
151
0
+834
how to find vertex
Find the vertex of the graph of the equation y = -2x^2 + 8x + 15 - 3x^2 + 7x - 25
maximum
21 nov. 2023
0
149
0
+834
area of a circle
Find the area of the region enclosed by the graph of $x^2 + y^2 = 2x - 6y + 6 + 14x - 16y + 80$.
maximum
21 nov. 2023
0
118
0
+834
help algebra
The graph of $y = ax^2 + bx + c$ has an axis of symmetry of $x = -1.$ If $a = 2,$ then find $b.$
maximum
21 nov. 2023
0
140
0
+834
parabola
Graph a parabola with axis of symmetry $x = 3,$ an $x$-intercept at $x = -8,$ and $y$-intercept $5.$
maximum
21 nov. 2023
0
105
1
+834
quadratic
Let c be a real number, and consider the system of quadratic equations
y = x^2 - 9x + c,
y = 8x^2 - 13x.
For which values of c does this system have:
(a) Exactly one real solution (x,y)?
(b) More than one real solution?
(c)
lire plus ..
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maximum
20 nov. 2023
0
81
1
+834
help with algebra
Simplify the expression
\frac{1}{\sqrt{36}} - \sqrt{27} - \frac{1}{\sqrt{27}} - \sqrt{18} + \frac{1}{\sqrt{18}} - \sqrt{9}
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maximum
11 nov. 2023
0
99
1
+834
complex numbers
Compute (1 + i)/(2 - i)(3 + i).
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maximum
11 nov. 2023
0
124
2
+834
plz help
The real numbers $a$ and $b$ satisfy $a - b = 1$ and $a^3 - b^3 = 1.$
(a) Find all possible values of $ab.$
(b) Find all possible values of $a + b.$
(c) Find all possible values of $a$ and $b.$
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maximum
11 nov. 2023
0
148
0
+834
help with roots
Let $a$ and $b$ be the roots of the quadratic $2x^2 - 8x + 7 = -3x^2 + 5x + 11.$ Compute $a^3/b^2 + b^3/a^2.$
maximum
11 nov. 2023
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+834
-1
Do not post AoPS homework.
maximum
20 janv. 2025
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11
10
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