If a person is breathing normally, which of the following could prevent him from using his body to exercise normally? a
not getting enough sunlight, because cells need sunlight to function

b
not getting enough sleep, because the body only makes energy for exercise while asleep

c
not eating enough food, because cells need molecules from both food and air to work

d
nothing, because he would be able to exercise normally as long as his cells are getting molecules from the air

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

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line

Multiplying fractions by whole number 5 x 1/3=?