Answer:DON'T KNOW SO DON'T LOOK AT ME
Step-by-step explanation:
Answer:
89.1° or -1.4°
Step-by-step explanation:
1. Location:
You are on the Mont-Saint-Jean escarpment, near the Belgian town of Waterloo.
The French troops are about 50 m below you and 1.2 km distant.
2. Finding the firing angle
Data:
R = 1200 m
u = 600 m/s
h = -50 m (the height of the target)
a = 9.8 m/s²
We have two conditions.
Horizontal distance
(1) 1200 = 600t cosθ
Vertical distance
(2) -50 = 600t sinθ - 4.9t²
Divide each side of (1) by 600cosθ.

Substitute (3) into (2)

Recall that
(5) sec²θ = 1/cos²θ = tan²θ + 1
Substitute (5) into (4)

Set up a quadratic equation

Solve for θ
Use the quadratic formula.
tanθ = 61.249 or -0.025
θ = arctan(61.249) = 89.1° or
θ = arctan(-0.025) = -1.4°
Answer:
2y^2 +5y
Step-by-step explanation:
y^2 + 11y - 6y + y^2
Combine like terms
2y^2 +5y
Answer: M(1, -3)
Step-by-step explanation: Put coordinates on graph
Answer:
Step-by-step explanation:
Puan Rohana's income = Active income + passive income
= 2000 + 450
= RM 2450
Expenses = 1680 + 400
= RM 2080
Total expenses increased by 40%
New expenses after 40% increase = 2080 + 40% of 2080
= 2080 + (0.4 * 2080)
= 2080 + 832
= RM 2912
Puan Rohana's expenses is more than there income