The answer is B. Use the trig identity (sin x)^2+(cos x)^2=1. Since cos x=0.3090, sinx=+-\sqrt(1^2-0.3090^2)=+-0.9511. Since 0<x<90, sin x must be positive, so sin x=0.9511. tan x=sin x/cos x=0.9511/0.3090=3.0780.
Answer: 0.88888889
Step-by-step explanation:
Just divide 8/9!
Answer:
16
Step-by-step explanation:
Shape C is A trapezoid
Area of trapezoid = 
where a and b = base lengths and h = height
The trapezoid has the following dimensions
base 1 = 3 units
base 2 = 5 units
height = 4 units
Using these dimensions we plug in the values into the formula stated above.

Hence the area of shape C = 16 square units
IF sides AC and BC are the 'legs' of the triangle, then the length of the 3rd side is
√ (5² + 6²) = √(25 + 36) = √61 = 7.81 (rounded)
IF side BC is the longest side (hypotenuse) of the triangle, then the length of
the 3rd side is
√(6² - 5²) = √(36 - 25) = √11 = 3.32 (rounded)
Answer:
138.8 cm
Step-by-step explanation:
Angle I =180 - 89 - 38 = 53
Using sine law
i/sinI = k/sinK
180/sin53 = k/sin38
k = 138.76