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The math puzzle 21 contains quadratic equation and its applications.A. x

E.x

A. 4x + h- 2 B.4h - 2 C. 4x + 4h + 2 D.4x-2 E. 4x+4h-2

A. 100 (q + s + r) B. q + s + r C. p + s + r + q D 100(q+s)/p+r E.100(p+r)/q+s

A. 600 B. 216 C. 60 D. 36 E. 6

A. x < 7 B. -1 < x < 7 C. x < 11 D. 1 < x < 7

E. |x|< 3

A. 10,000ft

A. 50π B. 78 π C. 100 π D. 156 π E. 312 π

A. B (a, a+1) B. B (a, a-1) C. B (a+1, a) D. B (a, a-1) E. B (a-1, a-1)

I (a, b)

II (a, -a)

III (-b, -b)

A. Only I B. Only II C. Only III D. Only II and III

E. Only I and II

A. (1, 6) B. (-1, 4) C. (3,8) D. (-2,3)

E. (2, 6)

From Math puzzle 21 to Math Teasers

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The UN General assembly voted at an emergency session to demand an immediate halt to Moscow's attack on Ukraine and withdrawal of Russian troops.

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