Answer:
e.) (x+1)2-308=x
Step-by-step explanation:
Step-by-step explanation:
(secx-tanx)(secx+tanx)
=sec^2-tan^2
=1
C is the answer.........................
Answer:
Greater than 21
Less than 45
Step-by-step explanation:
You add and subtract the two numbers you are given.
33 - 12 = 21
The third side has to be bigger than 21.
33 + 12 = 45
The third side has to be less than 45.
It can be written in one math sentence:
21 < x < 45
A = D/BC. In order to isolate A, all you do is divide by BC
