Answer:
CD ≈ 26.0 cm
Step-by-step explanation:
using the sine ratio in right triangle ABD
sin35° = 
= 
= 
( multiply both sides by BD )
BD × sin35° = 12 ( divide both sides by sin35° )
BD = 
≈ 20.92 cm
using the sine rule in Δ BCD
= 
, that is
= 
( cross- multiply )
CD × sin52° = 20.92 × sin102° ( divide both sides by sin52° )
CD = 
≈ 26.0 cm ( to 3 significant figures )
Answer:
y = 3/2x + 5/2
Step-by-step explanation:
Answer:
x=-7/9, y=4/3. (-7/9, 4/3).
Step-by-step explanation:
6x+2y=-2
3x-2y=-5
-----------------
9x=-7
x=-7/9
6(-7/9)+2y=-2
-42/9+2y=-2
2y=-2-(-42/9)
2y=-2+42/9
2y=-18/9+42/9
2y=24/9
y=(24/9)/2
y=(24/9)(1/2)
y=24/18
y=4/3
Answer:
<h2> 3hours 55 minute</h2>
Step-by-step explanation:
Step one:
Given data
distance= 160miles
velocity = 3/4 miles per minutes
Step two:
Required:
time
we know that velocity is
v=distance/time
times= distance/velocity
time=160/3/4
time= 160*4/3
time=640/3
time=213.33333minuts
Time= 3hours 55 minute
