120/4=30. Remember its widthxlength. if you forget ask your teacher or look online for more help. Good luck.
Answer:
<h2>
cos (α + β) = 0.9196</h2>
Step-by-step explanation:
Given sin α = –4∕5 and sin β = 1∕2
To get α from sin α = –4∕5,
α = arcsin(-4/5)
α = arcsin (-0.8)
α = -53.13°
If angle α is in quadrant III, then α = 180+53.13 = 233.13° (sin is negative in the 3rd quadrant)
Similarly for sin β = 1∕2
β = arcsin(1/2)
β = arcsin(0.5)
β = 30°
Since β is in quadrant II, β = 180-30 = 150°
To find cos (α + β). where α = 233.13° and β = 30°
cos (α + β)= cos (233.13 + 150)
= cos 383.13°
cos (α + β) = 0.9196
Answer:CA, BC, BA
Step-by-step explanation:
<h2>Answer- <u>
<em>3</em><em>3</em><em>9</em><em>1</em><em>.</em><em>2</em><em>mi</em><em>le</em></u></h2>
Step-by-step explanation:
Greetings !
Firstly, recall distance-speed equation

Given values:-
- speed(v)=15.7mile/hr
- time(t)=9days
required values:-
solution /work-out
But, first change the time from day to hour
Thus, 9days=216hours

plug in the given values and solve for the distance.

Hope it helps!
Answer:

Step-by-step explanation:

** The above answer is written in reverse, which is the exact same result.
I am joyous to assist you anytime.