To find a percentage, if I am ready your question correctly, would be as simple as dividing the number by 100. For example, finding the percentage of 73.
73/100 = .73%
You could also just move the decimal place over two spots to the left.
Answer:
z = 74 degrees
y = 115 degrees
Step-by-step explanation:
Explanation in the attachment.
Answer:
2
x
+
y
=
1
Step-by-step explanation:
Answer: Option d.
Step-by-step explanation:
The trigonometric identity needed is:

Knowing that
:
Substitute it into
:

Simplify the expression:

Solve for
. Apply square root at both sides of the expression:


Answer:
Step-by-step explanation:
Triangle DEF is a right angle triangle.
From the given right angle triangle,
DE represents the hypotenuse of the right angle triangle.
With ∠E as the reference angle,
EF represents the adjacent side of the right angle triangle.
DF represents the opposite side of the right angle triangle.
To determine EF, we would apply
trigonometric ratio
Cos θ = opposite side/hypotenuse. Therefore,
Cos 49 = EF/8
EF = 8Cos49 = 8 × 0.6561
EF = 5.2488
Rounding to the nearest tenth, it becomes 5.2