- How many sq ft is a triangle lot 50 ft across the front 180 down the sides and 150 across the back?

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Multiply matrices A and B of any sizes legally (no size compatibility requirment). What kind of matrix multiplication am I? What about oxidation reaction charge? In equal-tempered tuning the frequency (in Hz) of the note one tone above 220 Hz is...? If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? If you started with 3.60g of Copper and reacted it with an excess of nitric acid what mass of copper hydroxide would you expect to recover?