Se quiere analizar el porcentaje de contagios que tienen los estudiantes de un colegio frente a un virus. Se sabe que el 55% de los estudiantes del colegio son mujeres, y que el 60% de éstas no ha sido contagiada por el virus. Además, se conoce que el 30% de los hombres no ha sido contagiado. Al examinar un estudiante al azar, ¿Cuál es la probabilidad de que se haya contagiado con el virus durante el año? A. 3%
B. 10%
C. 5%
D. 95%

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

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Which is the correct first step in finding the area of the base of a cylinder with a volume of 26x cubic meters and a height of 6.5 meters? v=bh 6.5=b(26x) v=bh v=26pi+(6.5) v=bh v=26pi(6.5) v=bh 26pi=b(6.5)