Step-by-step explanation:
= 4x-x+5x+1+8-2
=8x+7
proved##
Answer:
Undefined
Step-by-step explanation:
(7 - 3 - 4) ÷ (-7 * (2+6))
(0) ÷ (-56)
Undefined because zero cannot be divided
Hope this helps :)
Step-by-step explanation:
DEFINITION: Besting: the clockwise totation (0° to 360°) from North to any line.
A) Calculate the bearings of D from A:
bearings of D from A =x
looking the picture:
x=48°+55°+180°
x+103°+180°
x=283°
B)Calculate the bearings of A from C:
bearings of A from C =y
180°+55°=y
y=235°
C) Calculate the distance between A and B:
The angle in B is 74° (Because 55°+51°+74°=180°)
Using the Law of sines:

D)Calculate the distance between D and C:
Using the Law of cossines:

E) A Helicopter is hovering at A at a height of 2.5Km, find angle of elevation of helicopter from C:
The triangle HBA is rectangle

α=7,49°
The answer is 9.2% because you multiply 125 by 9.2% which equals to 136.50
Answer:
= 98.7 tons
Step-by-step explanation:
ratio = 3:1:15
amount of sand needed = (15/19)*125 / 3 + 1 +15 =19