co1inqiu

8 Questions
0 Answers

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24

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Geometry

In the diagram, AD bisects BAC.
By adding one more condition, we can prove that triangles ABD and ACD are congruent. Which one of the following could be that condition? Select all that apply.
(a) BC read more ..

co1inqiu Dec 18, 2025

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24

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Geometry

Select the two triangles that must be congruent.
ABC
DEF
GHI read more ..

co1inqiu Dec 18, 2025

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24

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Geometry

What kind of quadrilateral has the property that both pairs of opposite sides are parallel? Select all that apply.
What kind of quadrilateral has the property that all four sides are equal in length? Select all that apply.
What read more ..

co1inqiu Dec 18, 2025

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38

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+33

Algebra

Find
\sum_{k = 1}^{20} k(k^2 - 10k - 20)(k^2 + 1)

co1inqiu Mar 7, 2025

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40

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+33

Algebra

Let t be a root of f(x) = x^3 - x + 3. Evaluate t^6 - 4t^5 + 7t^4 - 3t^2 + 10t - 13.

co1inqiu Mar 4, 2025

+1

27

1

+33

Algebra

Let r, s, and t be solutions of the equation x^3 - 4x^2 - 7x + 12 = 0. Compute
\frac{rs}{t^2} + \frac{rt}{s^2} + \frac{st}{r^2}

co1inqiu Mar 4, 2025

0

29

0

+33

Algebra

Let r, s, and t be solutions of the equation x^3 + 2x^2 - 5x + 15 = 0. Compute
\frac{1}{r - 2s - 2t} + \frac{1}{s - 2r - 2t} + \frac{1}{t - 2r - 2s}

co1inqiu Mar 4, 2025

0

23

1

+33

Algebra

Suppose r and s are the values of x that satisfy the equation
x^2 - 2mx + (m^2 - 6m + 11) = 0
for some real number m. Find the minimum real value of (r - s)^2.

co1inqiu Mar 4, 2025