A laboratory has a 75-gram sample of radioactive material. The half-life of the material is 10 days. (This means that it
takes 10 days for half of the initial mass to decay.)
The formula below can be used to find m, the remaining
mass in grams, in terms of t, the number of 10-day intervals
the mass has been decaying.
75(0.5)^t
Based on the formula, what is the mass of the laboratory's
sample remaining after 30 days?

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c

The correct answer is 7