Answer:
There are 180 degrees in a triangle so it is 80 degrees
Answer:
D
Step-by-step explanation:
Using the Cosine rule to find AC
AC² = BC² + AB² - (2 × BC × AB × cosB )
= 18² + 12² - ( 2 × 18 × 12 × cos75° )
= 324 + 144 - 432cos75°
= 468 - 111.8
= 356.2 ( take the square root of both sides )
AC =
≈ 18.9
-----------------------------------------
Using the Sine rule to find ∠ A
=
( cross- multiply )
18.9 sinA = 18 sin75° ( divide both sides by 18.9 )
sinA =
, then
∠ A =
(
) ≈ 66.9°
Answer:
0.3
Step-by-step explanation:
A. .375
B. .75
C. .3
D. .5
Answer:
24 ÷ 0.012 =2000
Step-by-step explanation:
24 ÷ 0.012
= 2000
Answer:
-1.5
Step-by-step explanation:
You just have to count on the graph