M∠ADB + m∠BDC = m∠ADC <span>
x + x + 10 = 60
2x + 10 = 60
2x = 60 - 10
2x = 50
x = 50/2
x = 25
a
m</span>∠ADB = x = 25°
b
m∠BDC = x + 10 = 25 + 10 = 35°
с
Angle Addition Postulate
Using subtraction of the y values you get 4x=5, x=5/4
Further substitution proves this to be true:)
Answer:
This will be s - r.
Step-by-step explanation:
Here,
SinB = r
CosB = s
SinB = AC/BC
Also,
CosC = AC/ BC
So, we can say SinB = CosC = r
Again,
CosB = AB/ BC
Also,
SinC = AB/ BC
So,
CosB= SinC = s
So,
SinC - CosC = s - r
When rates<span> are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called </span>unit rates<span>. To determine the rate, we just divide the distance traveled by the time it takes. Therefore, the rate of the plane would be
rate = 256 / 30(1/60) = 512 miles per hour</span>