Answer:
Basically when you use parantheses it protects that number from becoming negative...
-10^2 is -100 but with paranthesis is 100
(D) 33 feet
<u>Explanation:</u>
Given:
Height of the tree, h = 22 feet
angle, θ = 42°
Length of the ladder, l = ?
We know:
sin θ = Perpendicular / hypotenuse
So,
Sin θ = height of the tree / length of the ladder
l = 32.84 feet ≈ 33 feet
Therefore, the length of the ladder be to reach the top of the apple tree is 33 feet.
Answer:
Yes,they do.
Step-by-step explanation:
A triangle base with sides 9,12, and 15 is a right triangle.
Answer:
a=8,4
B=16,12
C=8,16
Step-by-step explanation:
Answer:
-18
Step-by-step explanation:
The absolute value is only on the 9, and the absolute value of positive 9 is positive 9. Multiply by negative 2 and you get -18.