Answer:
4th option
Step-by-step explanation:
The chord- chord angle 67.5° is half the sum of the arcs intercepted by the angle and its vertical angle, that is
67.5 = 
(x + 90)
Set up proportion 170/180=x/1 than cross multiply 170x=180 divide both sides by 170 answer 0.944 so 94% remains
Step-by-step explanation:
In ten minutes she walked 1-0.5=0.5 miles.
60 minutes/10 minutes=6. So 0.5 miles ×6=3 miles per hour
I believe it is B as well, it’s definitely not linear and it is a function from my understanding.
By saying the slope was multiplied by -1/2, I assume you actually mean multiply and not decreased. In the equation, the slope of the equation is 3. Therefore, if it were to be multiplied by -1/2, the new slope would be -3/2. Because the slope is now negative, the slow would be downward. I hope this helps :-)
