The half-life of a certain radioactive material is 42 days. An initial amount of the material has a mass of 49 kg. Write an exponential function that models the decay of this material. Find how
much radioactive material remains after 8 days. Round your answer to the nearest thousandth.
A. y=49(1/2)^42x;0kg
B. y=1/2(1/49)^1/42x;0.238kg
C. y=49(1/2)^1/42x;42.940kg
D. y=2(1/49)^1/42x;0.953kg

parallel and congruent

step-by-step explanation:

the movement of translation is linear.   these have the same translation because you are using the same rule for each point of the triangle so you will see the same slope being used to get from a point on the triangle to its image.

same slope!   you should think parallel when you see those 2 word together (well unless it's the same line but it can't be because we are coming from different points here)

congruent! because each point is being moved the same distance.

10 * 563.67 = 5636.7

i understand 100% 10/10 hit or miss?

step-by-step explanation:

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation: