1.

Oi] si (s) + O2(g) SiO2 (s)AH91vi] 2c cgraphite) + O2(g) 200AHii] Sics) C cs )sic-65.3Calculate AH' For SiO2 (s) + 36 (S) Sic (s)221AH =+ 2009​

Answer»

Answer:

tex] \begin{lgathered}\tt \implies \: (25 - x) {}^{2} = (x) {}^{2} + (5) {}^{2} \\ \tt \implies625 - 50 + x {}^{2} = x {}^{2} + 25 \\ \tt \implies - 50 Find a quadratic polynomial with zeroes 2 and 3. ________________________________________ #No Spam! ★ Find a quadratic polynomial with zeroes 2 and 3. ________________________________________ #No Spam!Steps:

1) Draw a line segment AB of length 9.3 UNITS.

2) Extend the line by 1 UNIT more such that BC=1 unit .

3) Find the midpoint of AC.

4) Draw a line BD perpendicular to AB and let it INTERSECT the semicircle at point D.

5) Draw an ARC DE such that BE=BD.

Therefore, BE=

9.3

units



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