Tan(Ф) = 4/3
tan(Ф) = b/6Ф, then 4/3 =b/6
cross multiplication: 3b=24 and b= 24/3, b = 8 (answer D)
Answer:
243 in.²
Step-by-step explanation:
A = bh
⇒ A = 13.5 × 18 = 243
It’s the first one I believe.
Answer:
lengthXwidthXhight
Step-by-step explanation:
mark brainliest pls :)
Answer:
1 m/s
Step-by-step explanation:
the area of the triangle = A = ¹/₂ab
where a is the distance covered by the first person and b is the distance covered by the second person. since they walk at the same speed, then a = b, so our formula can be changed to A = ¹/₂x²
now we find the derivative of both sides:
dA/dt = ¹/₂ ⋅ dx²/dt
dA/dt = ¹/₂ ⋅ 2x ⋅ dx/dt
dA/dt = x ⋅ dx/dt = x ⋅ velocity
we are told that x = 5 m, and dA/dt = 5 m²/s
velocity = dA/dt / x
velocity = 5 m²/s / 5 m = 1 m/s
