If tan theta is -1, we know immediately that theta is in either Quadrant II or Q IV.  We need to focus on Q IV due to the restrictions on theta.
Because tan theta is -1, the ray representing theta makes a 45 degree angle with the horiz axis, and a 45 degree angle with the negative vert. axis.  Thus the hypotenuse, by the Pythagorean Theorem, tells us that the hyp is sqrt(2).
Thus, the cosine of theta is adj / hyp, or +1 / sqrt(2), or [sqrt(2)]/2 
The secant of theta is the reciprocal of that, and thus is 
   2            sqrt(2)
---------- * ------------ = sqrt(2)    (answer)
 sqrt(2)      sqrt(2)  
        
                    
             
        
        
        
Answer:
The slope is -3/7 so B
Step-by-step explanation:
Just turn this into slope-intercept form. 
what you do is subtract 3x so that it's moved to the right side. 
It should look like this -7y = 12 - 3x
Then just divide all numbers by 7 so everything is simplified 
It should look like this y = -3/7x - 12/7
pls mark brainliest because i didn't waste you time lol
 
        
             
        
        
        
Yeah I think x=12y on this one correct me if I’m wrong
        
             
        
        
        
Hello there.
Answer: ⇒⇒⇒⇒-29
Step-by-step explanation:
Remove parenthesis.

Subtract the numbers.

Hope this helps!
Thank you for posting your question at here on brainly.
-Charlie