Answer:

Refer to the attachment for explication of steps. :)
Answer:
(b)
P = [4(4a + 3b]/(2a + b)
Step-by-step explanation:
P = 2L + 2W
P = [2(5a + 4b) + 2(3a + 2b)]/(2a + b)
P = [10a + 8b + 6a + 4b]/(2a + b)
P = [16a + 12b]/(2a + b)
P = [4(4a + 3b]/(2a + b)
Answer:
The Pythagorean identity states that

Using that we can rewrite the left denominator as:

Which can be factored as

The numerator we can expand as:

On the right hand side, let's multply numerator and denominator with (1 - sin t):
The total formula then becomes:

There you go... left and right are equal.
Answer:
(30-6) ÷1.25
Step-by-step explanation:
30-6=24
|
24÷1.25=19.2
↓
you round that and you get 19
I'm going to answer this as a process going down:
√x+1=6 The statement
x+1=6² Move the sqrt to the other side
x=6²-1 As well as the +1
x=36-1 Simplified the equation
x=35 Final answer