To solve this we can take two different approaches:
1. We can substitute theta by 30° and evaluate our expression using a calculator:
2. We can use the unitary circle and the fact that
, so we can rewrite our expression as follows:
From our unitary circle we can check that
and
.
Lets replace those values in our expression and simplify:
Either way we can conclude that the correct answer is:
D)8.7
See attached picture and check solution below.
We are given with the following values:
A = length of transmission line = 96ft
B = length of shadow = 72 feet
C = distance of ladder to base of transmission line = 66 feet
Solve for angle created between the wire and tip of the shadow:
tan x = opposite/ adjacent
tan x = 96 feet / 72 feet
x = 53.13°
Solving for the height of the ladder:
tan x = Ladder length / (72-66)
tan 53.13° * (72-66) = ladder length
ladder length = 8 feet
The answer is letter "B" which is 8 feet.
Answer:
A. 7x + 6y
Step-by-step explanation:
49x² + 84xy + 36y²
Factoring the perfect square:
(7x + 6y)²
7x + 6y is a factor.
Answer:
Step-by-step explanation:
To write: third root of x to the fourth power, to the fifth power into an expression with a rational exponent
Solution:
Exponent refers to the number of times a number is multiplied to itself.
Exponent is sometimes also known as power.
Third roots of 
Third root of x to the fourth power
Third root of x to the fourth power, to the fifth power
Answer:
La frecuencia cardíaca normal de un oso pardo cuando no está hibernando es de 50 latidos por minuto.
Step-by-step explanation:
