Answer:78°
Step-by-step explanation:
angle CAW=180-168
angle CAW=12
angle DWB=12 vertically opposite to angle CAW
Sum of angles at a point=360
168+12+12+90+w=360
282+w=360
Collect like terms
w=360-282
w=78
B. 11+11=10+12
11+11 is 22
And 10+12 is 22
So the statement is true because both sides are equal
Answer:
64
Step-by-step explanation:
I'm assuming this is what the question means, so basically every 4/125 discs are defective, and 125 fits into 2000, 16 times so you multiply 4/125*16/16 so you get 64/2000.hope this helps
<u>Answer</u>
-3/√13
<u>Explanation</u>
We are going to take angle ∅ to be at the origin (point (0,0)).
The point at (-2, -3) means, 2 units to the left (negative side of x-axis) and 3 units downwards (negative side of y-xis).
This will make a right triangle with a hypotenuse of √(2²+3²) = √13
The angle ∅ is in the 3rd quadrant where cosine is negative.
cosine = adjacent/hypotenuse
The exact answer for cos ∅ = -2/√13