Answer:
θ = 30°
Angle of elevation is 30°
Step-by-step explanation:
Given;
Height of wall w = 10 ft
Length of ramp l = 20 ft
Angle of elevation = θ
Applying trigonometry;
Sinθ = opposite/hypothenuse
Where;
Height of wall w = opposite (it's opposite the angle of elevation)
Length of ramp l = hypothenuse
Sinθ = w/l
θ = arcsine (w/l)
Substituting the values;
θ = arcsine (10/20)
θ = arcsine (0.5)
θ = 30°
Angle of elevation is 30°
It is a straight line of symmetry because if you have a paper A and you fold it, it will form a straight line, and that is also meaning a straight line of symmetry. If you fold it any other way, it will not be a line of symmetry.
Hope this helps you ;)
23 because you are just moving the decimal place over two
Answer:
$1,630.08
Step-by-step explanation:
The value of an amount earning interest continuously compounded is given by the formula ...
A = Pe^(rt)
The value of P can be found by dividing by its coefficient:
P = A/(e^(rt)) = Ae^(-rt)
P = $1700·e^(-0.014·3) ≈ 1630.0786
Terry placed $1,630.08 in the account.
You need to subtract the numbers for 180 and you will have the answer