2x+90=180
x=45
Therefore, each angle is 45 degrees.
Y=Ф + 8/(ФcosФ) ==> note that
dy/dФ = 1 - 8/[(ФcosФ)]² x (-8sinФ) ==> dy/dФ = 1+[(64sinФ)/Фcos²Ф]
==> dy/dФ = 1+ 64tanФ/Ф or dy/dФ = (Ф+tanФ)/Ф
Answer:

Step-by-step explanation:


A negative slope makes a line go down to the right.
The line C goes up to the right, so that is not it.
slope = -5 = rise/run = -5/1
For every 5 the y-coordinate goes down, the x-coordinate goes 1 to the right.
Only line B goes down 5 and right 1, so the answer is line B.
Answer: Line B
3 4/15 this is not simplified <span />