Answer: r = -5/18
Step-by-step explanation: You solve -3(1+6r)+12=14
-3-18r+12=14 (When distributed)
-18r+9=14
-18r=5
r=-5/18
You replace x with (a+1)
Then f(a+1) = (a+1)^2+1
= a^2+2a+1+1
= a^2+2a+2
(-2x)(x^2)+(-2x)(-3) = -2x^3 + 6x
Answer:25% chance
Step-by-step explanation:
Answer:
The height of the tower is approximately 95.263 feet
Step-by-step explanation:
The given parameters are;
The distance from the foot of the tower where the angle of elevation is measured = 55 feet
The angle of elevation to the top of the tower from a point 55 feet from the foot of the tower, θ = 60°
Therefore, by trigonometric ratio, we have;

Therefore, we have;

The height of the tower = 55 feet × tan (60°) = 55 × √3 feet ≈ 95.263 feet.