Answer:
see explanation
Step-by-step explanation:
If A +B = 45° then tan(A+B) = tan45° = 1
Expanding (1 + tanA)(1 + tanB)
= 1 + tanA + tanB + tanAtanB → (1)
Using the Addition formula for tan(A + B)
tan(A+B) = 
= 1 ← from above
Hence
tanA + tanB = 1 - tanAtanB ( add tanAtanB to both sides )
tanA + tanB + tanAtanB = 1 ( add 1 to both sides )
1 + tanA + tanB + tanAtanB = 2
Then from (1)
(1 + tanA)(1 + tanB) = 2 ⇒ proven
Answer:
C) 153.9 in²
Step-by-step explanation:
14 ÷ 2 = 7
π = 3.14
3.14×7×7 = 153.9 in²
hope this helps!
Answer:
B. Yes, because it passes the vertical line test.
Step-by-step explanation:
B. Yes, because it passes the vertical line test.
A vertical line going from left to right will intersect at most one point on the graph at a time. That makes it a function.
Answer: 1 canteen
Step by step: 12 boys divided by 12 canteens 1, so each boy gets 1 canteen
Answer:
D) |−8,000 − (−50)|
Step-by-step explanation:
When we are dealing with questions involving above or below sea level,
The formula for the Absolute value expression representing the distance = | Height above sea level -(Distance below sea level|
Height of Cameron above sea level = 8000ft = -8000
Distance of the whale below sea level = 50ft = -50
Hence, we have:
|−8,000 − (−50)|.
Option D is the correct option
