Answer:
156.37°
Step-by-step explanation:
We solve this above question, using Cosine rule which is given as:
Cos C = a² + b² - c²/2ab
Let the Angle be represented as: x
Cos x = 310² + 200² - 150²/2 × 310 × 200
x = arc cos [ 310² + 200² - 150²/2 × 310 × 200]
x = 23.63°
The angle, in degrees, that he must turn through to head straight for Island B is given as:
180° - 23.63°
= 156.37°
Yo need to complete the “PEMDAS” step by step left to right .
P:parentheses
E: exponents
M: multiplication
D: division
A: addition
S: subtraction
I hope I have helped you . Complete those steps left from right and you should get it .
Answer: the leg x would equal 76.8, or 77 rounded. The actual number would be 76.8374908492.
80 Pounds, If its above 5, round up, below round down.
Answer:
Area of the wall without the doorway = 67.5 - 21 = 46.5
Step-by-step explanation:
i) let length of smaller side of trapezoidal wall, a = 22 feet
ii) let length of longer side of trapezoidal wall, b = 23 feet
iii) height of trapezoidal wall, h = 3 feet
iv) area of trapezoidal wall = = = 22.5 3 = 67.5
v) area of door = 7 3 = 21
vi) Area of the wall without the doorway = 67.5 - 21 = 46.5