Answer:
1. 81
2. 4 (square root of) 25^3
3. 30 (square root of) 10
Answer:
8.27 ft.
Step-by-step explanation:
Using trigonometry of a right angled triangle:
cos 74 = x / 30 where x is the required distance
x = 30 cos 74
= 8.269 ft
Answer:
420.72
Step-by-step explanation:
Answer:
D. 158.4 km²
Step-by-step explanation:
Area of sector = θ/360 * πr²
Where,
θ = 150°
r = 11 km
Substitute
Area = 150/360 * π * 11²
Area = 158.38863 ≈ 158.4 km² (nearest tenth)
2π radians is equal to 360° which is just π rad/180° so:
120°(π/180°)=2π/3
