Answer:
23
Step-by-step explanation:
Answer:
Step-by-step explanation:
Triangle BCD is a right angle triangle.
From the given right angle triangle
BC represents the hypotenuse of the right angle triangle.
Taking 45 degrees as the reference angle,
BC represents the adjacent side of the right angle triangle.
BD represents the opposite side of the right angle triangle.
To determine BC, we would apply trigonometric ratio
Cos θ = adjacent side/hypotenuse side. Therefore,
Cos 45 = BC/2√2
√2/2 = BC/2√2
BC = 2√2 × √2/2
BC = 2
Answer:
hi there, I like your pfp XD
Anyways the answer should be 18
Step-by-step explanation:
pattern:
-1, +2, -3, +4, -5, +6, -7, +8, -9, +10, -11, +12, -13, +14, -15
39/69 = 13/23 is in simplest form
First you do 39 divide by 3 = 13 and do 69 divid by 3 = 23