(Mon) A room measures 8.6 m wide by 12.4 m long by 4.1 m high. What is the volume of the room in cm 3 (5 pts / 5 min)

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Presentation transcript:

(Mon) A room measures 8.6 m wide by 12.4 m long by 4.1 m high. What is the volume of the room in cm 3 (5 pts / 5 min)

Volume = l x w x h Vol = (8.6m)(12.4m)(4.1m) Vol = m m 3 Vol = 4.37 x 10 8 cm 3 (Mon) A room measures 8.6 m wide by 12.4 m long by 4.1 m high. What is the volume of the room in cm 3 1 m 100 cm 1 m

(Tue) You are standing 10 m from a tree. If you look up at an angle of 44.5° you see the top of the tree. How tall is the tree? (5 min / 5 pts)

Tanθ = Opp/Adj Tan(θ) = Height/Distance Tan(44.5°) = Ht/10m (10m)tan(44.5°) = Ht Height = 9.83 m (Tue) You are standing 10 m from a tree. If you look up at an angle of 44.5° you see the top of the tree. How tall is the tree?

(Wed) If you drive your car with an average velocity of 48.0 km/hr to the east, how long will it take you to drive 144 km on a straight highway? (5 min / 5 pts)

v = Δx/Δt 48.0 km/hr = 144 km/Δt Δt = 3.0 hrs +1 Just ‘cause Δt = 144 km / 48.0 km/hr (Wed) If you drive your car with an average velocity of 48.0 km/hr to the east, how long will it take you to drive 144 km on a straight highway? (5 min / 5 pts)

(Thu) If you were to travel northeast (45°) for 22.3 km and then traveled south (180°) for 15.3 km, how far would you be from where you started and in what direction? (10 min / 10 pts)

x = length(cosθ) (Thu) If you were to travel northeast (45°) for 22.3 km and then traveled south (180°) for 15.3 km, how far (& direction) would you be from where you started? (10 min / 10 pts) X dirY dir 1 2 Tot 1 2 y = length(sinθ) x1 = 22.3(cos45°) y1 = 22.3(sin45°) x2 = 15.3(cos(-90°)) y2 = 15.3(sin(-90°)) tanθ =opp/adjθ =tan -1 (opp/adj) θ =tan -1 (0.46/15.76) θ = 1.67° x² + y² = tot² Tot = (15.76² ²) 1/2 Tot = kmθ = 88.33° Fm N

(Fri) Take this time for some last minute review before the test.