Answer:
∠A=26º
∠B=137º
∠C=17º
Step-by-step explanation:
We can use the Law of Cosines because we have all 3 side lengths.
cosA =
cosA=28^2+12^2-18^2 / 2(28)(12)
cosA=604/672
cos-1(604/672
angle A ≈ 26º
cosB =
cosB=-316/432
cos-1(-316/432
angle B ≈ 137º
26+137=163
180-163=17
angle C ≈ 17º
Answer:
109.2
Step-by-step explanation:
math
Answer:
B
Step-by-step explanation:
Volume of Sphere = 4/3 x 3.14 (pi) x r^2
Answer:
it's easy..here have a look at it.
X+5y=12
yint is where the line crosses the y axis or where x=0
set x=0 and solve for y
0+5y=12
5y=12
divide both sides by 5
y=12/5
ying=12/5
answer is C