Points A' and B' are images of points A and B after a 270 degree rotation about the origin. If the slope of ray AB is 3, what is the slope of ray A'B'? Explain. A. A rotation of 270 degrees would result in a line parallel to ray AB . Since the slopes of parallel lines are opposite reciprocals, the slope of ray A'B' is (Blank).
B. A rotation of 270 degrees would result in a line perpendicular to ray AB. Since the slopes of perpendicular lines are opposite reciprocals, the slope of ray A'B' is (Blank).
C. A rotation of 270 degrees would result in a line parallel to ray AB . Since the slopes of parallel lines are equal, the slope of ray A'B' is (Blank).
D. A rotation of 270 degrees would result in a line perpendicular to ray AB . Since the slopes of perpendicular lines are equal, the slope of ray A'B' is (Blank).

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu