Answer:
The answer is A
Step-by-step explanation:
Let distance form the pole = x and height of the hill = y ft
now we can set up 2 equayions
tan 18 = (40-y)/x
tan 14 = y/x
from second equation y = sxtan14 so we have:-
tan 18 = ( 40 - x tan 14) / x
x tan 18 = 40 - x tan 14
x(tan 18 + tan 14) = 40
x = 40 / (tan18 + tan 14) = 69.66 feet Answer
Answer:
60° or 120°
Step-by-step explanation:
You can solve the equation by combining like terms across the equal sign and using inverse operations. Since there are two terms with cos²∅, you can combine them.
6cos²∅ + 3 = 4 + 2cos²∅ Subtract 2cos²∅
4cos²∅ + 3 = 4 Subtract 3 from both sides
4cos²∅ = 1 Divide by 4 on both sides
cos²∅ = 1/4 Square root both sides
cos ∅ = ± 1/2
Solve by identifying which angles have a cosine value of 1/2 and -1/2. These angles are 60° and 120°
Answer:
a. 34
b. 0
Step-by-step explanation:
you plug the n values as n
note when -n^2, you do this:
= -4
so don't mistake it for +4
pay special attention to the signs to solve like:
+ times - is a negative!
