What are the first two steps in solving the radical equation below? Vx+3 - 7 - 15
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A. Square both sides and then add 7 to both sides.
B. Square both sides and then subtract 3 from both sides.
C. Add 7 to both sides and then square both sides.
D. Add 7 to both sides and then subtract 3 from both sides.

Which shows the pre image of triangle xyz

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

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