Increases but is that what you are asking?
Answer:
B
Step-by-step explanation:
Using the cosine ratio in the right triangle and the exact value
cos30° =
, then
cos30° =
=
=
( cross- multiply )
2x = 20
( divide both sides by 2 )
x = 10
→ B
Answer: The product of (-4)(-8) is 32. Multiply two negatives makes it positive. So just think of it as 4 times 8. Which is 32.
Answer:
19.1
Step-by-step explanation:
Let's assign some variables to this triangle.
angle A = 63°
angle B = unknown
angle C = 71°
side a = 18
side b = y
side c = x
By the law of sins, applicable to ALL triangles, we have:

Let's then take the equation for angles A and C, in order to isolate the c (which is our x to find).
we then have

So, the answer is the second one.